Introduction
Founder disputes are among the most damaging legal risks for startups. A business may begin with trust, friendship, shared enthusiasm and informal promises, but when the product gains traction, investors appear, revenue increases or one founder decides to leave, the question of ownership becomes critical. Who owns the brand? Who owns the source code? Who owns the patentable invention? Who owns the design files, customer lists, domain names, investor deck, algorithm, prototype or trade secrets?
In Turkey, intellectual property ownership in founder disputes must be analyzed through several legal areas at the same time: company law, contract law, copyright law, industrial property law, unfair competition rules, employment principles and evidence law. There is no single rule stating that “the startup automatically owns everything created by the founders.” Unless ownership has been properly transferred, assigned or regulated, IP rights may remain with an individual founder, a contractor, an employee, a designer, a software developer or even an external agency.
This issue becomes especially serious during funding rounds. Investors do not only invest in an idea; they invest in a company that must own or control the assets necessary to operate, scale and exit. If the main trademark is registered in one founder’s personal name, if the source code was written by a departing co-founder without assignment, or if a former partner claims ownership over a patentable invention, the investment process may be delayed or fail.
The Turkish legal framework is multi-layered. Industrial property rights such as trademarks, patents, utility models and designs are mainly regulated under Industrial Property Code No. 6769, which WIPO identifies as Turkey’s main legislation covering patents, utility models, trademarks, industrial designs and related enforcement mechanisms. Copyright and software-related creative rights are governed by Law No. 5846 on Intellectual and Artistic Works, which WIPO lists as Turkey’s main copyright law. Unfair competition and trade secret-related issues may arise under the Turkish Commercial Code No. 6102, including Articles 54–63 on unfair competition and provisions concerning undisclosed information and trade names.
This article explains how founder disputes affect intellectual property ownership in Turkey, what risks startups face, how founders can prevent ownership conflicts, and what legal steps should be taken before investment, exit or litigation.
1. Why IP Ownership Becomes a Founder Dispute
Most founder disputes do not begin as legal disputes. They begin as practical disagreements: one founder believes they contributed the idea; another founder wrote the code; another brought investors; another registered the trademark; another paid early expenses; another handled design, customers or product development.
When the company has no clear written agreement, each founder may develop a different understanding of ownership. One founder may say, “The idea was mine.” Another may say, “The product exists because I built it.” A third may say, “The company owns everything because we were working for the startup.” Legally, these statements are not enough. Turkish law requires analysis of the specific asset, the person who created or registered it, the date of creation, the company’s incorporation date, written assignments, shareholder agreements, employment or service contracts, and actual use.
Founder IP disputes commonly involve:
- Trademark ownership
- Software source code
- Mobile application rights
- Website and platform design
- Patentable inventions
- Product designs and prototypes
- Pitch decks and investor materials
- Domain names and social media accounts
- Customer data and supplier lists
- Confidential know-how
- Trade secrets
- Company name and trade name
- Copyrightable content
- AI models, datasets and algorithms
The mistake many startups make is assuming that because everyone was “working together,” all assets automatically belong to the company. In practice, this assumption can create serious legal uncertainty.
2. The Difference Between a Business Idea and Protectable IP
A founder may claim: “The idea was mine, so the company’s IP belongs to me.” This is usually an oversimplification. Turkish intellectual property law does not generally protect an abstract business idea by itself. What may be protected is the concrete legal form of that idea: a trademark, copyrighted work, software code, design, invention, confidential know-how, database, trade secret or contractual right.
For example, the idea of creating an online marketplace for a specific sector is not automatically owned as an IP right. However, the platform’s name may be protected as a trademark; the source code may be protected under copyright principles; the interface graphics may be protected as creative works; the product algorithm may be confidential know-how; and a technical invention may be protected by patent or utility model if legal requirements are met.
This distinction is vital in founder disputes. A founder who only contributed the commercial idea may not automatically own the source code written by another founder. A founder who wrote the first version of the software may not automatically own the registered trademark. A founder who paid for design work may not automatically own the copyright if the designer did not assign rights.
The legal question is always asset-specific: which IP asset is disputed, who created it, who registered it, who paid for it, who used it, and whether it was assigned to the company?
3. Trademark Ownership in Founder Disputes
Trademark disputes are very common between founders. The brand name may have been chosen before company incorporation. One founder may have filed the trademark application personally. Another may have purchased the domain name. The company may have used the brand commercially, but the official trademark record may show an individual founder as the applicant or owner.
In Turkey, trademark protection is granted under Industrial Property Code No. 6769. TÜRKPATENT states that trademark protection in Turkey is governed by Law No. 6769 and that applications may be filed directly before the Turkish Patent and Trademark Office or through the Madrid System where applicable.
From a startup perspective, the safest approach is for the company itself to own the trademark, unless there is a deliberate holding or licensing structure. If a founder owns the trademark personally, serious risks arise:
- The founder may leave and restrict the company’s use of the brand.
- Investors may require assignment before closing.
- The company may face rebranding pressure.
- The founder may license the mark to another business.
- The company may lose control over oppositions, renewals or enforcement.
- Other founders may claim bad faith or breach of fiduciary expectations.
If the trademark was registered personally because the company had not yet been incorporated, the founders should execute a written trademark assignment to the company as soon as possible. The assignment should be properly documented and recorded before the relevant authority where necessary.
A founder agreement should also state that all marks, trade names, product names, logos and brand assets created for the startup belong to the company.
4. Company Name, Trade Name and Trademark Are Not the Same
Another frequent misunderstanding is the belief that registering a company trade name automatically secures trademark rights. A Turkish company may be incorporated under a certain trade name, but that does not necessarily mean it owns trademark protection for its brand in all relevant classes.
A company name identifies the legal entity. A trademark identifies commercial origin for goods or services. A domain name identifies an online address. These three may overlap, but they are not identical.
For example, a startup may establish a company under a trade name that includes the brand, but if it fails to file a trademark application, a third party may create legal problems by registering a similar mark in the relevant class. Conversely, a founder may register the trademark personally even though the company uses the same name commercially.
In founder disputes, this distinction matters because one founder may control the domain, another may control the trademark, and the company may control the trade name. A proper startup structure should align all three under the company or under a clearly regulated IP holding arrangement.
5. Software Ownership and Founder-Created Code
For technology startups, software ownership is often the most important issue. A co-founder may write the initial source code before incorporation. Another may later rewrite parts of the platform. Freelancers may contribute modules. Employees may add features. Open-source components may be integrated. If no written agreements exist, ownership can become complex.
Under Turkish law, software may be protected as a copyright-related work under Law No. 5846, depending on the nature of the work and legal requirements. Law No. 5846 is the core copyright statute in Turkey, covering copyright and related rights.
In founder disputes, the following questions become critical:
- Who wrote the original code?
- Was the code written before or after incorporation?
- Was the founder acting personally or on behalf of the company?
- Was there a written IP assignment?
- Were any freelancers or agencies involved?
- Does the company control the repository?
- Was open-source software used?
- Are commit histories available?
- Did a departing founder keep a copy of the code?
- Did the founder reuse the same code in another project?
The safest practice is to execute a founder IP assignment agreement. This agreement should transfer to the company all software, source code, object code, documentation, databases, architecture, APIs, interface materials and related rights created for the startup, including assets created before incorporation.
Without such a document, a departing technical founder may claim that the company only had permission to use the code, not full ownership. That claim can create major risk in investment, licensing and litigation.
6. Patentable Inventions and Founder Contributions
Some startups are built around technical inventions. These may involve hardware, medical devices, biotechnology, chemical processes, engineering systems, robotics, manufacturing methods, AI infrastructure or industrial technology. In such companies, founder disputes may involve patent ownership.
Industrial Property Code No. 6769 governs patents and utility models in Turkey, and WIPO identifies it as covering patents, utility models, trademarks, industrial designs and enforcement of IP rights.
Patent ownership disputes may arise where:
- One founder developed the technical invention before company formation.
- Multiple founders contributed to the invention.
- A university, former employer or research institution may have rights.
- The invention was created during employment.
- The patent application names certain inventors but not others.
- No written assignment was made to the startup.
- The invention was disclosed publicly before filing.
- A departing founder files a competing patent application.
Patentable inventions require careful documentation. Startups should maintain invention disclosure forms, R&D records, laboratory notes, prototype dates, founder contribution logs and assignment documents. If multiple founders contributed, the agreement should distinguish between inventorship and ownership. Inventorship is a technical/legal status connected to contribution to the invention, while ownership determines who controls and commercializes the patent rights.
Investors will usually require confirmation that all patent rights are owned by the company or exclusively licensed to it.
7. Industrial Designs, Product Appearance and Founder Conflicts
Product-based startups may face disputes over industrial designs, packaging, device appearance, fashion items, furniture, consumer goods or visual product identity. One founder may have created early sketches. Another may have hired the designer. A third may have filed the design registration.
Industrial designs are also regulated under Law No. 6769, which covers industrial designs as part of Turkey’s industrial property framework.
Design disputes may involve:
- Product shape
- Packaging design
- Logo and label layout
- UI/UX visual design
- Prototype appearance
- Manufacturing drawings
- 3D files
- Product photographs
- Retail display concepts
A startup should ensure that product designs are assigned to the company by founders, employees, agencies and freelance designers. If the company sells a product but does not own the underlying design files or registrations, a departing founder or designer may create legal risk.
Design ownership should be addressed before product launch, manufacturing, crowdfunding campaigns, trade fairs or investor presentations.
8. Domain Names and Digital Assets
Domain names are often overlooked in founder disputes. A founder may purchase the domain in their personal account at the beginning of the project. Later, after conflict, that founder may refuse to transfer control, redirect the domain, change passwords or use the domain as leverage.
Digital assets include:
- Domain names
- Hosting accounts
- Cloud infrastructure
- GitHub or GitLab repositories
- App Store and Google Play accounts
- Social media usernames
- Advertising accounts
- Analytics accounts
- Email systems
- Payment platform accounts
- Marketplace seller accounts
These assets may not all be “IP rights” in the narrow legal sense, but they are essential to the startup’s business. A founder dispute involving domain control can immediately damage operations.
Startup agreements should require that all domains and digital accounts be registered under the company’s name and controlled through company email addresses. Access should be documented, and no single founder should have exclusive control over critical infrastructure without internal safeguards.
9. Trade Secrets and Confidential Know-How
Not all valuable startup assets are registered. Many founder disputes involve confidential information: customer lists, supplier data, pricing models, pitch decks, fundraising contacts, algorithms, product roadmaps, sales funnels, marketing strategy, technical architecture, source code logic, internal metrics and financial projections.
The Turkish Commercial Code No. 6102 contains unfair competition provisions and provisions concerning undisclosed information, trade names and related IP matters. This framework may become relevant where a departing founder misuses confidential information or establishes a competing business using the startup’s internal know-how.
However, trade secret protection depends heavily on actual confidentiality measures. A startup that wants to claim trade secret protection should show that it treated the information as confidential. This may include:
- Founder confidentiality clauses
- Employee NDAs
- Contractor NDAs
- Access restrictions
- Password-protected folders
- Confidentiality markings
- Limited sharing of sensitive files
- Internal policies
- Exit procedures for departing founders
- Return and deletion obligations
If founders casually share all information through personal email accounts, messaging apps and uncontrolled drives, later trade secret claims become more difficult.
10. Founder Exit: What Happens to IP?
When a founder leaves, the startup must immediately address IP and access issues. A founder exit is not only a shareholding matter. It is also an IP control event.
The exit documentation should cover:
- Confirmation that all IP created for the startup belongs to the company
- Assignment of any remaining rights
- Transfer of domain names and accounts
- Return or deletion of confidential information
- Repository access termination
- Non-use of source code and internal materials
- Non-solicitation of employees, customers and suppliers where enforceable
- Non-disparagement clauses
- Cooperation for trademark, patent or design filings
- Waiver or settlement of ownership claims
- Treatment of founder-created materials
- Ongoing confidentiality obligations
A clean exit agreement can prevent years of litigation. Without it, the departing founder may later claim that they own the brand, product, code, design, patent, customer database or commercial concept.
11. Founder Agreements: The Most Important Preventive Tool
A founder agreement is one of the most effective ways to prevent IP disputes. It should be signed early, ideally before major development work, fundraising or public launch.
A strong founder agreement should regulate:
- Initial founder contributions
- Shareholding and vesting
- Roles and responsibilities
- IP ownership
- Assignment of pre-incorporation IP
- Future IP created for the startup
- Confidentiality
- Non-compete and non-solicitation obligations within enforceable limits
- Exit consequences
- Deadlock resolution
- Decision-making authority
- Transfer restrictions
- Dispute resolution
- Treatment of domains, accounts and digital assets
- Cooperation in registrations and enforcement
The IP clause should be specific. A vague statement such as “all IP belongs to the company” may not be enough for practical due diligence. The agreement should identify categories of assets, timing of transfer, founder obligations and execution of further documents if needed.
12. Shareholders’ Agreement and Articles of Association
In Turkey, founder rights may also be regulated through a shareholders’ agreement and, where legally appropriate, the company’s articles of association. The articles of association govern the company’s corporate structure, while a shareholders’ agreement may contain more detailed commercial arrangements between founders.
For IP ownership, the shareholders’ agreement may include:
- Founder IP assignment obligations
- Restrictions on competing projects
- Confidentiality obligations
- Penalty clauses for breach
- IP enforcement decision-making
- Brand usage rules
- Exit and bad leaver provisions
- Obligations to support patent, trademark and design filings
- Restrictions on personal registration of company-related IP
- Remedies if a founder registers IP in bad faith
Investors often review these documents to understand whether founder relationships are stable and whether IP has been properly centralized in the company.
13. Employee, Freelancer and Agency Contributions
Founder disputes often become more complicated when external contributors are involved. A founder may say they created the product, but in reality, a freelance developer wrote the code, a design agency created the logo, a consultant prepared the investor deck, and an industrial designer produced the prototype.
If contracts with these third parties are missing, the founders may dispute who was responsible for securing rights. The company may also discover that it does not fully own key assets.
Startups should sign written agreements with:
- Software developers
- UI/UX designers
- Graphic designers
- Branding agencies
- Marketing agencies
- Product designers
- Engineers
- Consultants
- Photographers
- Content creators
- Data providers
- Manufacturing partners
These agreements should contain clear IP assignment, confidentiality, non-reuse, warranty, delivery and cooperation clauses. The company should own or control the deliverables, not merely possess files.
14. Investor Due Diligence and Founder IP Disputes
Founder IP disputes are a major red flag in funding rounds. Investors want to confirm that the startup, not individual founders, owns the key assets. If there is uncertainty, investors may delay closing, reduce valuation or require corrective documents.
Investor questions may include:
- Are all trademarks registered in the company’s name?
- Were pre-incorporation assets assigned to the company?
- Did all founders sign IP assignment agreements?
- Does any former founder claim rights?
- Who owns the source code?
- Are all developers and designers under written agreements?
- Are domains registered under the company?
- Are there pending disputes?
- Are patents or designs properly assigned?
- Are trade secrets protected?
A startup preparing for investment should clean up IP ownership before opening the data room. It is far better to resolve missing assignments early than to negotiate them under investor pressure.
15. Evidence in Founder IP Disputes
When a founder dispute reaches litigation or negotiation, evidence becomes decisive. The parties may make broad claims, but courts and investors examine documents, dates, records and conduct.
Important evidence may include:
- Company incorporation documents
- Founder agreements
- Shareholders’ agreements
- Trademark applications and certificates
- Patent and design filings
- Copyright-related documents
- Source code commit history
- Git repository records
- Design files and metadata
- Emails and messages
- Invoices and payment records
- Domain registration records
- Agency and freelancer contracts
- Board or shareholder resolutions
- Pitch deck versions
- Product launch materials
- Customer contracts
- Confidentiality agreements
- Access logs
- Exit correspondence
The earlier the startup organizes its records, the stronger its legal position becomes.
16. Common Founder IP Dispute Scenarios in Turkey
Scenario 1: The Trademark Is in One Founder’s Name
The company uses the brand, but the trademark application was filed by one founder before incorporation. After conflict, that founder refuses to assign it. This may create trademark ownership, unfair competition, bad faith and contractual issues.
Scenario 2: The Technical Founder Leaves With the Code
A developer-founder wrote the MVP and leaves after a dispute. The company continues using the code, but the founder claims personal ownership. The result depends on contracts, timing, contribution evidence and whether rights were assigned.
Scenario 3: A Founder Starts a Competing Business
A departing founder uses the startup’s customer list, supplier contacts and product roadmap to launch a competitor. This may raise confidentiality, unfair competition, trade secret and contractual claims.
Scenario 4: The Domain Is Controlled by a Former Founder
The main website domain is registered under a founder’s personal account. After exit, the founder refuses transfer or redirects traffic. This creates urgent operational and legal risk.
Scenario 5: No One Obtained Rights From Freelancers
The founders dispute ownership internally, but the bigger problem is that an external agency created the logo and UI without assigning rights to the company. This becomes a due diligence problem.
17. Litigation and Legal Remedies
If a founder IP dispute cannot be resolved commercially, legal action may be necessary. Depending on the facts, possible remedies in Turkey may include:
- Declaratory actions regarding ownership
- Trademark assignment or invalidity-related claims
- Copyright infringement claims
- Unfair competition lawsuits
- Contractual breach claims
- Injunction requests
- Evidence determination
- Compensation claims
- Return or deletion of confidential information
- Domain transfer-related claims
- Claims based on company law duties
- Criminal complaints in specific fraud, breach of trust or trade secret scenarios
The correct legal route depends on the specific asset and the founder’s conduct. A trademark dispute requires different analysis from a software ownership dispute. A trade secret case requires different evidence from a patent assignment case. Therefore, the claim should be built around clearly identified rights, not merely around the emotional argument that a founder “stole the idea.”
18. Settlement Strategy in Founder IP Disputes
Many founder disputes should be settled if possible. Litigation can be expensive, slow and damaging to the startup’s reputation. A negotiated settlement may preserve company value, protect investor confidence and allow the business to continue.
A settlement may include:
- Assignment of IP to the company
- Payment or share transfer
- Founder exit terms
- Non-use of brand and code
- Domain transfer
- Confidentiality undertakings
- Mutual release of claims
- Cooperation in trademark or patent filings
- Non-disparagement
- Return of company property
- Deletion of confidential information
- Penalty clause for breach
The settlement should be drafted carefully. A poorly drafted settlement may resolve the shareholding issue but leave IP ownership unclear.
19. Practical Checklist for Startups
Startups in Turkey should take the following steps to prevent founder IP disputes:
- Sign a founder agreement before major development begins.
- Assign all pre-incorporation IP to the company.
- File trademarks in the company’s name.
- Register domains under the company’s control.
- Use company email accounts for critical digital assets.
- Document software authorship and repository history.
- Sign IP assignment agreements with developers and designers.
- Regulate patentable inventions and inventor cooperation.
- Protect product designs before launch.
- Use NDAs and confidentiality policies.
- Keep customer lists and business plans access-limited.
- Create exit procedures for departing founders.
- Review IP ownership before fundraising.
- Keep a complete IP data room.
- Resolve missing assignments before investor due diligence.
This checklist is not only for large startups. Early-stage companies need it even more because informal arrangements are most common at the beginning.
20. FAQ: Founder Disputes and IP Ownership in Turkey
Does a startup automatically own IP created by its founders?
Not always. Ownership depends on the type of IP, timing of creation, contracts, assignments, employment status, registration records and evidence. A written founder IP assignment is strongly recommended.
Can a founder personally own the startup’s trademark?
Yes, it can happen if the founder filed the trademark personally. However, this may create serious problems if the trademark was intended for the company. The safest structure is usually company ownership or a clearly documented licensing arrangement.
Who owns software written before company incorporation?
The founder or developer who wrote it may have rights unless those rights are assigned to the company. Startups should use pre-incorporation IP assignment agreements.
Can a departing founder use the same business idea?
A general business idea may not be protected by itself. However, the founder cannot lawfully misuse trademarks, source code, confidential information, trade secrets, copyrighted materials or other protected assets belonging to the company.
What if a founder registered the domain name personally?
The domain should be transferred to the company. If the founder refuses, the company may need to rely on contracts, trademark rights, unfair competition arguments or domain dispute mechanisms depending on the facts.
Do investors care about founder IP disputes?
Yes. Founder IP disputes are serious due diligence red flags. Investors want proof that the company owns or controls the assets required for the business.
Conclusion
Founder disputes and intellectual property ownership issues can determine the future of a startup in Turkey. A promising business can lose investor confidence, market position and operational control if its founders fail to regulate who owns the brand, code, patents, designs, domains, trade secrets and commercial materials.
The central legal lesson is clear: ideas alone are not enough. Startups must convert founder contributions into company-owned assets through written agreements, assignments, registrations, confidentiality systems and proper corporate records. Trademarks should be filed in the company’s name, software should be assigned, patentable inventions should be documented, domains should be controlled by the company, and trade secrets should be protected in practice.
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