What Legal Risks Does a Startup Face If It Does Not Register Its Trademark in Turkey?

A startup may spend years developing software, attracting customers, raising investment and building a reputation around a particular name without ever registering that name as a trademark.

At the beginning, trademark registration may appear less urgent than product development, financing, recruitment or sales. Founders may believe that incorporating a company, purchasing a domain name or opening social media accounts gives them sufficient legal ownership of the brand.

That assumption can create serious problems.

For many startups, the brand eventually becomes one of the company’s most valuable assets. Customers recognise the company through its name, application name, logo, platform name or product name. Marketing expenditure increases the commercial value associated with that sign. Investors begin referring to the business by the brand rather than its corporate name.

If the startup has failed to secure trademark protection, however, a third party may apply for the same or a confusingly similar sign. The startup may then be forced to oppose the application, file an invalidation action, prove earlier rights, defend an infringement claim or even consider a costly rebranding exercise.

Under Article 7 of Turkish Industrial Property Code No. 6769, trademark protection provided by the Code is acquired through registration, and the exclusive rights arising from registration belong to the registered trademark proprietor.

For this reason, trademark registration should not be treated merely as an administrative formality.

For a startup, it is part of the company’s intellectual property strategy, investment readiness, valuation and legal risk management.

This article explains the legal risks of failing to register a startup trademark in Turkey, the protection that may still exist for an unregistered mark and the practical steps founders should take before investing heavily in a brand.

What Is a Trademark?

A trademark is, in general terms, a sign capable of distinguishing the goods or services of one undertaking from those of other undertakings.

For a startup, the relevant sign may include:

  • the startup name,
  • application name,
  • SaaS product name,
  • platform name,
  • logo,
  • product line,
  • service name,
  • slogan in appropriate circumstances,
  • or another distinctive brand element.

TÜRKPATENT expressly distinguishes a trade name from a trademark. A trade name identifies the company itself, whereas a trademark distinguishes the goods or services offered in the marketplace. A company can therefore have one corporate trade name but several different trademarks for its products and services.

This distinction is critical for startups.

Registering the Company Does Not Mean Registering the Trademark

One of the most common mistakes made by founders is assuming that registration of the company with the trade registry automatically gives comprehensive trademark protection.

For example, founders may establish:

NovaCloud Teknoloji Anonim Şirketi

and assume that the word NovaCloud is now protected as a trademark for:

  • software,
  • cloud services,
  • mobile applications,
  • AI solutions,
  • consultancy,
  • and other commercial services.

That conclusion is not necessarily correct.

Corporate trade-name registration and trademark registration are legally different mechanisms.

A company may therefore successfully incorporate under a particular trade name and later discover that another person owns an earlier registered trademark covering the relevant goods or services.

The startup may then face a serious problem after already spending substantial amounts on:

  • website design,
  • advertisements,
  • software development,
  • signage,
  • application-store listings,
  • packaging,
  • investor presentations,
  • customer acquisition,
  • and international marketing.

For this reason, founders should conduct trademark clearance before committing heavily to a brand.

Buying the Domain Name Does Not Create Trademark Rights

Another common misunderstanding is:

“We own the .com domain, so we own the brand.”

Domain names and trademarks are separate legal assets.

Purchasing:

example.com

does not automatically provide exclusive trademark rights over the word “Example”.

Similarly, someone who owns a registered trademark does not automatically obtain every possible domain containing the same word. The relationship between trademarks and domain names depends on the circumstances.

This distinction is particularly important because Article 7 of the Industrial Property Code expressly contemplates certain unauthorised uses of identical or similar signs on internet media, including use as a domain name, router code or keyword, where the legal requirements are satisfied.

A startup should therefore ideally coordinate:

  • company name,
  • trademark,
  • domain names,
  • social media usernames,
  • mobile application names,
  • and international brand strategy.

Social Media Accounts Do Not Replace Trademark Registration

The same applies to Instagram, X, LinkedIn, TikTok, YouTube or other social media accounts.

A startup may have used a username for five years and accumulated hundreds of thousands of followers.

That can provide commercially valuable evidence of use and reputation.

But owning the account does not provide the same legal position as owning a registered trademark.

Platform usernames are governed partly by the platform’s own rules. Trademark rights, by contrast, are enforceable industrial property rights under national law.

If a brand is strategically important, founders should not depend exclusively on account ownership.

The Principal Risk: Another Person May Apply for the Trademark First

The most obvious risk of failing to register a trademark is that another person may file an application for the same or a similar mark.

Consider:

Startup A begins using the name DataPilot in January 2025.

It develops software, acquires customers and attracts investment.

It never applies for trademark registration.

In 2026, Company B files an application for DataPilot for similar software services.

Startup A now has a legal problem that could largely have been prevented by filing earlier.

This does not necessarily mean Company B automatically wins.

Turkish law recognises certain earlier rights arising from unregistered trademarks.

Article 6(3) of the Industrial Property Code provides that where rights in an unregistered trademark or another sign used in the course of trade were acquired before the filing or priority date of a later trademark application, the later application may be refused upon opposition by the proprietor of the earlier sign.

This protection is important.

However, relying on it is much more complicated than simply having an earlier registration.

Unregistered Trademark Rights May Exist, but They Must Be Proven

A startup that has not registered its trademark may need to prove that it acquired earlier rights through use.

This may require evidence such as:

  • invoices,
  • customer agreements,
  • advertisements,
  • screenshots,
  • press articles,
  • website archives,
  • social media records,
  • application-store records,
  • marketing campaigns,
  • event participation,
  • packaging,
  • sales figures,
  • and dated correspondence.

The startup may also need to demonstrate:

  • when use began,
  • where the sign was used,
  • for which goods or services,
  • whether the use was genuine commercial use,
  • and whether the claimed earlier right existed before the later filing date.

A registered trademark generally provides a much clearer starting point.

This is one of the fundamental disadvantages of relying solely on unregistered rights.

Missing the Opposition Period Can Make the Problem More Expensive

Trademark applications are published so that relevant third parties may oppose registration.

Under Article 18 of the Industrial Property Code, opposition to a published trademark application based on Articles 5 or 6 must be filed within two months following publication.

This creates an important operational issue.

A startup that has not registered its brand should at least monitor new applications.

Otherwise, another person’s application may proceed through the registration process without the startup noticing.

Once the trademark has registered, the earlier user may have to move from an administrative opposition procedure to a court-based invalidation action.

That usually means:

  • more time,
  • greater legal cost,
  • more evidence,
  • greater uncertainty,
  • and potentially ongoing commercial conflict.

Preventive filing is generally much easier than litigation after another party has secured registration.

A Later Registration May Need to Be Invalidated Through Court Proceedings

Article 25 of the Industrial Property Code provides that where the circumstances described in Articles 5 or 6 exist, invalidation of a registered trademark is decided by the court.

Accordingly, if a startup possesses earlier rights in an unregistered sign but fails to stop a later registration during the opposition phase, it may still be possible to challenge that registration.

However, the startup may now need to commence an invalidation action.

The difference is significant.

Instead of presenting an administrative opposition before TÜRKPATENT, the business may find itself involved in litigation while simultaneously trying to continue ordinary commercial operations.

That can become particularly damaging where the disputed brand appears on:

  • the startup’s application,
  • website,
  • contracts,
  • customer accounts,
  • investor documents,
  • advertisements,
  • and international expansion materials.

Delay Can Also Create Acquiescence Problems

Trademark disputes should not be ignored.

Article 25(6) of the Industrial Property Code provides that where a trademark proprietor knowingly, or in circumstances where it should have been aware, acquiesces in the use of a later trademark for five consecutive years, the earlier trademark may no longer be relied upon as an invalidation ground, unless the later registration was made in bad faith.

The precise application of this rule depends on the circumstances.

The broader lesson for startups is straightforward:

Trademark rights must be actively monitored and enforced.

Waiting for years because “everyone knows we used the name first” can significantly weaken the company’s position.

The Startup May Receive a Cease-and-Desist Letter From Someone Else

A particularly unpleasant scenario arises where another person obtains registration and then sends the startup an infringement notice.

Imagine a startup that has spent three years building a successful product under a particular name.

It then receives a lawyer’s notice stating:

“Our client owns the registered trademark. Cease using the name immediately.”

The startup may have arguments based on:

  • earlier use,
  • bad faith,
  • trade name rights,
  • unfair competition,
  • or other prior rights.

However, it must now respond to an active dispute.

This may involve:

  • trademark opposition,
  • invalidation litigation,
  • infringement defence,
  • settlement negotiations,
  • and possibly rebranding discussions.

The business impact can be substantial even if the startup ultimately succeeds.

Registered Trademark Rights Are Much Easier to Enforce Against Copycats

Registration gives the proprietor exclusive statutory rights.

Article 7 provides registered owners with the ability, subject to the statutory requirements, to prevent unauthorised use of:

  • identical signs for registered goods or services;
  • identical or similar signs creating likelihood of confusion for identical or similar goods or services;
  • and, for qualifying reputed marks, certain uses that unfairly benefit from or damage the distinctive character or reputation of the registered mark.

These rights can extend to commercial uses such as:

  • placing the sign on goods or packaging;
  • offering goods or services under the sign;
  • importing or exporting;
  • using the sign in business documents or advertising;
  • and certain uses as domain names or internet keywords.

A startup without registration may still have legal claims, but it loses the straightforward statutory position enjoyed by a registered proprietor.

Trademark Infringement Claims Are Built Around Registered Rights

Article 29 of the Industrial Property Code identifies conduct constituting infringement of trademark rights, including unauthorised uses within Article 7 and counterfeiting through the use of identical or confusingly similar signs.

For a startup dealing with counterfeit products, imitation websites or confusing competitors, registration can therefore dramatically improve the legal enforcement framework.

Instead of beginning by proving that the startup somehow acquired an unregistered right years earlier, the company can begin with a registered industrial property right recorded in the trademark registry.

That difference matters in urgent disputes.

Criminal Trademark Protection Requires Registration in Turkey

One of the most significant risks of not registering is losing access to the specific criminal trademark infringement regime.

Article 30 of the Industrial Property Code contains criminal provisions for specified trademark infringement conduct.

Importantly, Article 30(5) expressly states that, for punishment under those trademark offences, the trademark must be registered in Turkey.

This means an entrepreneur who only uses an unregistered brand cannot simply assume that the criminal trademark infringement provisions will apply in the same way.

Other criminal offences may theoretically be relevant depending on the facts, but the specific criminal protection created for registered trademarks has registration as a statutory requirement.

For businesses exposed to counterfeiting, this is an important reason to register early.

Failure to Register Can Lead to Expensive Rebranding

One of the largest financial risks is not litigation itself.

It is rebranding.

Suppose a startup discovers after three years that it cannot safely continue using its brand.

The company may need to change:

  • corporate identity,
  • website,
  • mobile application,
  • domain name,
  • packaging,
  • employee email addresses,
  • contracts,
  • marketing materials,
  • signage,
  • social media accounts,
  • advertisements,
  • app-store listings,
  • investor decks,
  • and customer communications.

Rebranding also creates intangible losses.

The company may lose:

  • search-engine visibility,
  • brand recognition,
  • word-of-mouth reputation,
  • customer familiarity,
  • press references,
  • backlinks,
  • and social media continuity.

The earlier a startup registers, the lower the risk of building substantial goodwill around a legally problematic name.

Trademark Problems Can Reduce Startup Valuation

Investors routinely examine intellectual property during due diligence.

For a consumer-facing startup, one of the first questions may be:

“Is the brand registered?”

If the answer is no, investors may investigate:

  • whether an application has been filed,
  • whether competing applications exist,
  • whether the name is distinctive,
  • whether similar registrations exist,
  • whether anyone has sent infringement notices,
  • and who legally owns the application.

A trademark problem can affect valuation because the investor is not merely buying shares.

The investor is buying exposure to the startup’s intellectual property portfolio.

If the brand generating the startup’s customer goodwill is legally insecure, the investment is less secure.

Trademark Registration Is Particularly Important During Venture Capital Due Diligence

A venture capital fund may review an IP schedule containing:

  • trademarks,
  • trademark applications,
  • patents,
  • designs,
  • copyrights,
  • software rights,
  • domain names,
  • and licences.

If the startup’s core product is called AlphaFlow but the company owns no application or registration for AlphaFlow, the investor may require the issue to be resolved before closing.

Possible consequences include:

  • trademark filing as a condition precedent;
  • additional founder warranties;
  • intellectual property indemnification;
  • restructuring of trademark ownership;
  • or even postponement of investment.

Trademark registration is therefore part of being investment-ready.

Trademark Problems Can Jeopardise a Startup Acquisition

The issue becomes even more important during an acquisition.

Imagine a strategic buyer offers EUR 20 million for a startup.

The startup’s entire market reputation is connected to one brand.

During due diligence, the buyer discovers that:

  • the trademark has never been filed;
  • another company has a similar registration;
  • the founder personally owns the domain;
  • and a third party has recently filed the startup’s name.

The buyer may ask:

“Are we buying a business that can legally continue using its current brand?”

If the answer is uncertain, the buyer may:

  • reduce the price,
  • demand escrow,
  • require the risk to be resolved before closing,
  • demand indemnification,
  • or abandon the transaction.

A relatively inexpensive filing decision made at incorporation can therefore become relevant to a multimillion-euro exit.

Registration Turns the Brand Into a More Clearly Identifiable Company Asset

Registered trademarks are valuable because they are identifiable legal assets.

A registered trademark may potentially be:

  • transferred,
  • licensed,
  • used in franchise arrangements,
  • included in corporate restructuring,
  • pledged where legally appropriate,
  • and valued as part of the company’s intellectual property portfolio.

The Industrial Property Code expressly recognises licensing of trademark rights, including exclusive and non-exclusive licences.

For startups developing platform or franchise models, this can be commercially important.

For example, a Turkish startup expanding internationally through local partners may want to license its brand under controlled terms.

That arrangement becomes easier to structure when the company owns a clearly registered trademark.

Failure to Register Can Create Founder Ownership Disputes

Startups should also ensure that the trademark is filed in the correct name.

A frequent mistake is for a founder to apply personally for the startup’s trademark.

The startup later receives investment.

The founder still owns the trademark personally.

A dispute then arises between the founder and company.

Investors may ask:

“Why does the company not own the brand it has been paying to develop?”

Ideally, commercially important startup trademarks should be held by the entity that is intended to own and commercialise the intellectual property, unless a deliberate group IP structure has been adopted.

Where founders initially apply personally before incorporation, the trademark should be transferred to the startup at the appropriate stage.

The trademark should not remain accidentally trapped in a founder’s personal portfolio.

Co-Founder Disputes Can Make an Unregistered Brand Even More Dangerous

Suppose two founders jointly create the brand BrightDesk.

No trademark is filed.

The founders later separate.

Founder A registers BrightDesk personally.

Founder B continues operating the original startup under BrightDesk.

The dispute can become extremely complicated.

Questions may involve:

  • who first used the sign,
  • whether the application was made in bad faith,
  • contractual founder obligations,
  • company rights,
  • earlier unregistered use,
  • and unfair competition.

A founders’ agreement should therefore address ownership of:

  • trademarks,
  • domain names,
  • logos,
  • social media accounts,
  • and other brand assets.

More importantly, the company should file the core trademark before a founder conflict begins.

Bad-Faith Trademark Applications Can Be Opposed

The Industrial Property Code does provide protection against abusive filings.

Article 6(9) states that trademark applications filed in bad faith shall be refused upon opposition.

This can become relevant where:

  • a former employee,
  • distributor,
  • co-founder,
  • commercial partner,
  • developer,
  • or another person aware of the startup’s brand

attempts to register it opportunistically.

However, the existence of a bad-faith remedy should not encourage founders to delay registration.

Proving bad faith after a dispute has begun is far more burdensome than simply filing first.

Trade Names and Other Earlier Rights May Help

Article 6 also recognises other forms of prior rights.

For example, a trademark application may be opposed where it conflicts with another person’s:

  • trade name,
  • personal name,
  • copyright,
  • or other intellectual property rights

under the conditions provided by the statute.

These protections can be extremely useful.

But once again, they are not a substitute for an organised trademark strategy.

A startup should not intentionally leave its main brand unregistered merely because some other legal theory might eventually protect it.

Unfair Competition Law May Protect an Unregistered Brand

An unregistered brand may also receive protection in appropriate circumstances under the unfair competition provisions of the Turkish Commercial Code.

For example, conduct creating confusion between businesses, products or commercial activities may raise unfair competition issues.

This is particularly relevant where a competitor intentionally imitates:

  • a startup’s name,
  • visual identity,
  • packaging,
  • presentation,
  • or other distinctive commercial elements.

However, unfair competition litigation normally requires a fact-specific assessment.

Trademark registration provides a more direct intellectual property basis for controlling the registered sign within its protected scope.

The two regimes can sometimes operate together.

A Trademark Search Should Be Conducted Before Filing

Registering quickly does not mean filing blindly.

Before choosing a startup name, founders should conduct a trademark clearance search.

The search should identify:

  • identical registrations,
  • similar registrations,
  • pending applications,
  • relevant goods and services,
  • potentially conflicting trade names,
  • and commercially significant unregistered uses.

A Google search alone is not enough.

A startup can spend months designing a brand only to discover that another business owns a confusingly similar mark in the relevant classes.

Early legal clearance can avoid this problem.

The Correct Trademark Classes Are Critical

Trademark protection is linked to the goods and services covered by the registration.

Startups should therefore select the appropriate classes under the Nice Classification.

A software startup may need protection relating to combinations of:

  • downloadable software,
  • SaaS services,
  • software development,
  • technology consulting,
  • financial services,
  • marketplace services,
  • telecommunications,
  • education,
  • or other activities,

depending on its actual business model.

A registration filed only in an irrelevant class may provide less protection than the founders expect.

Conversely, filing excessively broad applications without a genuine business strategy may create unnecessary costs and future non-use issues.

Trademark specifications should therefore reflect both:

  • current operations,
  • and realistically planned expansion.

Filing Only the Logo May Not Be Enough

Another common mistake is registering only a logo while failing to protect the word element.

Suppose the startup operates under:

NEXORA

with a distinctive graphic logo.

The startup files only the complete stylised logo.

Years later, it changes the design but continues using the word NEXORA.

Depending on the circumstances, a separate word-mark registration may provide more flexible protection.

Startups should therefore consider registering strategically important brand elements separately where appropriate.

This may include:

  • word mark,
  • logo,
  • product name,
  • and key sub-brands.

International Expansion Requires International Trademark Planning

A Turkish trademark registration principally protects the mark in Turkey.

It does not automatically create worldwide trademark protection.

A startup planning to enter:

  • the European Union,
  • United Kingdom,
  • United States,
  • Gulf countries,
  • or other markets

should consider international trademark strategy before launch.

TÜRKPATENT explains that protection in Turkey can be pursued through a direct national application and that international trademark routes are also available in accordance with the relevant international system.

This is important because a startup may successfully build a brand in Turkey and later discover that the same mark is unavailable in its most important international market.

International expansion should therefore be coordinated with trademark clearance before major marketing expenditure occurs.

Trademark Registration Does Not Mean the Startup Can Stop Using the Brand

Registration creates rights, but those rights must also be maintained.

Under Article 9 of the Industrial Property Code, if a registered trademark is not put to genuine use in Turkey for the registered goods or services within five years following registration, or if genuine use is interrupted continuously for five years, the trademark may be revoked unless proper reasons exist.

Current law provides for revocation requests to be decided by TÜRKPATENT under Article 26.

Therefore, startups should not register large numbers of speculative marks and then completely ignore them.

Trademark strategy requires:

  • filing,
  • genuine use,
  • evidence preservation,
  • monitoring,
  • renewal,
  • and enforcement.

Registered Trademark Protection Can Be Renewed Indefinitely

Article 23 provides that the protection period for a registered trademark is ten years from the filing date and can be renewed for successive ten-year periods.

This makes a trademark fundamentally different from many short-term commercial assets.

If properly renewed and maintained, a trademark can remain valuable for decades.

Some of the world’s most valuable commercial assets are brands precisely because trademark protection can continue while the business and goodwill continue.

For a startup intending to build a long-term business, early trademark registration therefore has substantial strategic value.

Example: Startup Registers Early

Consider Startup A.

Before launch, the founders:

  1. conduct a trademark search;
  2. determine the appropriate classes;
  3. apply for the word mark;
  4. apply for the core logo where commercially appropriate;
  5. register the domain through the company;
  6. document founder IP ownership;
  7. monitor new trademark applications.

Three years later, a competitor launches a confusingly similar brand.

Startup A has a registered right and can evaluate enforcement directly under the Industrial Property Code.

The company’s legal position is relatively clear.

Example: Startup Never Registers

Now consider Startup B.

The founders select a name and immediately launch.

They:

  • register a company,
  • purchase the domain,
  • build an application,
  • spend EUR 500,000 on marketing,
  • reach 200,000 users,
  • and raise seed investment.

No trademark application is filed.

Three years later, another company obtains registration for a highly similar sign.

Startup B now needs to investigate:

  • earlier-use evidence,
  • opposition dates,
  • possible invalidation,
  • bad-faith arguments,
  • trade name rights,
  • unfair competition,
  • and infringement exposure.

Even if Startup B ultimately establishes stronger rights, it has created a dispute that may have been preventable.

What Should a Startup Do If It Has Already Used an Unregistered Brand for Years?

The absence of registration does not mean the situation is hopeless.

The startup should immediately:

  1. conduct a detailed trademark clearance search;
  2. determine whether another person has filed or registered the sign;
  3. collect evidence showing the earliest commercial use;
  4. identify the exact goods and services for which the mark has been used;
  5. preserve invoices, advertisements and website archives;
  6. review the trade name and domain ownership;
  7. identify international markets;
  8. file an application where legally appropriate;
  9. monitor the Official Trademark Bulletin;
  10. evaluate any conflicting applications immediately.

If another registration already exists, the startup should not file blindly or ignore the issue.

The earlier rights and potential infringement risk should first be analysed.

What Evidence Should Be Preserved for an Unregistered Trademark?

Where registration has been delayed, evidence of use becomes especially valuable.

The startup should preserve:

  • dated invoices,
  • customer contracts,
  • screenshots,
  • domain registration history,
  • app-store publication history,
  • advertising invoices,
  • marketing campaigns,
  • press coverage,
  • social media archives,
  • packaging,
  • product photographs,
  • conference materials,
  • investor presentations,
  • sales data,
  • and correspondence with customers.

The documents should demonstrate not merely internal plans but actual use of the sign in trade.

Evidence should also establish the date and scope of that use.

Trademark Monitoring Should Continue After Registration

Registering the mark is not the final step.

New applications are continuously filed.

A competitor may apply for:

  • the same word,
  • a phonetically similar word,
  • a visually similar logo,
  • or the same mark in overlapping goods or services.

Because Article 18 provides only a two-month opposition period following publication, regular trademark watching can be valuable.

The faster a conflicting application is identified, the easier it may be to act through the administrative opposition process rather than later invalidation litigation.

Trademark Registration Checklist for Startups

Before launching or scaling a startup brand in Turkey, founders should ask:

  1. What is the principal startup brand?
  2. Is the company name different from the product name?
  3. Has a professional trademark search been conducted?
  4. Are identical applications already registered?
  5. Are confusingly similar trademarks registered?
  6. Does another company have earlier unregistered use?
  7. Is the mark sufficiently distinctive?
  8. Which Nice classes are required?
  9. Should the word mark be registered?
  10. Should the logo also be registered?
  11. Are important product names separately protected?
  12. Who should own the registration?
  13. Is the application currently owned personally by a founder?
  14. Should it be transferred to the company?
  15. Does the company own the domain?
  16. Does the company control social media accounts?
  17. Are international applications required?
  18. Which countries will the startup enter?
  19. Is the trademark actually being used?
  20. Is evidence of use being preserved?
  21. Is the trademark portfolio included in investor due diligence?
  22. Is a trademark monitoring system in place?
  23. Are potentially conflicting applications being reviewed?
  24. Are renewal deadlines monitored?
  25. Are licences properly documented?

A startup unable to answer these questions may have a hidden brand risk.

Frequently Asked Questions About Startup Trademark Registration in Turkey

Is trademark registration compulsory for a startup?

A startup can conduct business without registering every brand. However, registration provides the exclusive statutory trademark rights created by the Industrial Property Code and substantially strengthens enforcement.

Does registering a company name protect the trademark?

Not in the same way. A trade name identifies the company, while a trademark identifies and distinguishes goods or services. The two rights should not be confused.

Does owning the domain protect the startup name?

No. Domain ownership and trademark ownership are separate.

Can an unregistered trademark be protected in Turkey?

Potentially. Article 6(3) recognises earlier rights acquired in an unregistered trademark or another sign used in trade and allows those rights to be raised against a later application under the statutory conditions.

What happens if another person registers my startup name?

Depending on the facts, opposition or invalidation proceedings may be available based on earlier rights, bad faith, trade name rights or other grounds. Immediate legal analysis is advisable because procedural deadlines may apply.

How long do I have to oppose a trademark application?

Article 18 provides a two-month opposition period following publication of the application.

How long does a trademark registration last in Turkey?

The initial protection period is ten years from the filing date and can be renewed for additional ten-year periods.

Can a registered trademark be cancelled for non-use?

Yes. A trademark that is not genuinely used in Turkey for the relevant goods or services for five years may be vulnerable to revocation, absent proper reasons for non-use.

Is registration necessary for criminal trademark infringement proceedings?

Article 30 expressly requires the trademark to be registered in Turkey for the trademark crimes regulated by that provision.

Should a startup register before launching?

Where commercially and legally feasible, clearance and filing before major public launch can substantially reduce risk.

Conclusion: What Are the Legal Risks If a Startup Does Not Register Its Trademark?

A startup that fails to register its trademark does not necessarily lose every possible right over its brand.

Turkish law recognises that earlier rights may arise from an unregistered trademark or another sign used in trade. Article 6(3) expressly allows the proprietor of such an earlier right to oppose a later trademark application under the statutory conditions.

However, relying exclusively on unregistered rights creates unnecessary legal uncertainty.

The startup may be required to prove:

  • when the brand was first used,
  • how extensively it was used,
  • which goods or services were covered,
  • whether commercial rights had actually arisen,
  • and whether those rights pre-date another person’s application.

Meanwhile, Article 7 establishes the central rule of Turkish trademark law: the trademark protection provided by the Industrial Property Code is acquired through registration, and the resulting exclusive rights belong to the registered proprietor.

Failure to register can therefore expose a startup to multiple risks:

  • another person applying for the same or similar mark;
  • administrative opposition proceedings;
  • trademark invalidation litigation;
  • infringement allegations;
  • inability to rely on the specific criminal trademark provisions;
  • costly rebranding;
  • loss of customer recognition;
  • disputes with founders;
  • domain-name conflicts;
  • difficulty licensing the brand;
  • problems during venture capital due diligence;
  • reduced acquisition value;
  • and complications during international expansion.

Perhaps the most dangerous misconception is:

“We have been using the name for years, so nobody else can touch it.”

Earlier use may be legally important, but a startup should not intentionally create a situation in which it must prove that earlier use through litigation.

The stronger approach is to secure the brand before it becomes valuable.

Another common misconception is:

“The company is registered under this name, so the trademark is already protected.”

Company registration, trademark registration and domain registration perform different functions.

A startup should coordinate all three.

Trademark strategy should therefore begin at the branding stage.

Before spending substantial money on development and marketing, founders should:

  • clear the proposed name,
  • examine existing trademarks,
  • determine the correct classes,
  • register strategically important word and logo marks,
  • ensure the correct company owns them,
  • secure key domains,
  • preserve evidence of commercial use,
  • monitor later trademark applications,
  • and plan international protection before entering foreign markets.

The importance of this process increases as the startup grows.

During the first month of a startup’s existence, a trademark may appear to be little more than a name.

After five years of customer acquisition, marketing and product development, that same name may represent millions of euros of commercial goodwill.

At that stage, changing it may be extremely expensive.

Trademark registration should therefore not be viewed as something a startup does only after becoming successful.

It is one of the legal tools that helps ensure the startup can safely keep the brand under which it becomes successful.

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