IP Due Diligence in Turkey: A Buyer’s and Investor’s Guide

IP due diligence in Turkey is the structured review of a target company’s trademarks, patents, designs and other intellectual property before you buy shares, buy assets or inject investment, so you can confirm what the company really owns and whether those rights are valid, properly recorded and free of encumbrances. Get it wrong and you may pay full price for assets the seller does not actually control. This guide walks you through what to check, how to verify ownership, and where the real deal risks sit.

Most cross-border buyers focus on financial statements and real estate, then treat intangible assets as a footnote. In technology, consumer, franchise and manufacturing deals, the brand and the underlying rights are often the most valuable thing on the table. That is exactly why serious IP due diligence in Turkey belongs early in the process, not the week before signing.

What Is IP Due Diligence in Turkey?

IP due diligence in Turkey is a fact-based audit that confirms which intellectual property rights a target holds, whether they are registered before the Turkish Patent and Trademark Office (TÜRKPATENT), and whether the deal will actually transfer clean title to those rights. It covers registered rights such as trademarks, patents, utility models and industrial designs, and unregistered assets such as trade names, domain names, software and know-how.

The exercise answers three questions. Does the company own what it claims to own? Are those rights valid, in force and unencumbered? And can they be transferred to you, or will they stay behind with a founder, a group company or a licensor?

Turkey’s core framework here is the Industrial Property Code No. 6769, which governs how trademarks, patents and designs are registered, assigned and licensed. In our practice before TÜRKPATENT, the gap between what a seller believes it owns and what the register actually shows is the single most common surprise in a deal.

Why IP Due Diligence in Turkey Matters When Buying a Company

Thorough IP due diligence in Turkey protects the price you pay and the value you expect to keep after closing. The IP risks when buying a Turkish company are concrete: the flagship trademark may be registered in a founder’s personal name, a key design may never have been filed, or a licence that powers the main product may terminate on a change of control.

Consider a common pattern. A foreign group agrees to acquire a Turkish consumer brand, assuming the trademark portfolio sits inside the company. During review it emerges that the marks are held by a separate family holding entity and merely used by the operating company without a written licence. The buyer is then paying enterprise value for a business whose central asset is owned by someone who is not a party to the transaction.

Identifying IP risks when buying a Turkish company early gives you room to renegotiate, restructure or require a clean assignment as a condition of closing.

What IP Assets to Identify First

Start by building a complete inventory of every intellectual property right the target uses, whether or not it is registered. A brand rarely lives in a single trademark; it usually spans word marks, logos, product names, packaging designs and domains.

• Trademarks: registered and pending marks before TÜRKPATENT, plus any international registrations through the WIPO Madrid System that designate Turkey or extend Turkish rights abroad.
• Patents and utility models: granted rights, pending applications, and the annuity payment status that keeps them alive.
• Industrial designs: registered designs for product shape, packaging and graphical elements.
• Domain names and social handles: the .com.tr and .com domains, and the accounts that carry the brand online.
• Copyright, software and know-how: source code, databases, written materials and trade secrets, which are not registered but still need clear ownership and confidentiality trails.

Good trademark due diligence in Turkey also captures unregistered use. A company may rely on a mark it has used for years but never filed, which leaves the brand exposed to a third party registering it first. Turkey operates a first-to-file system, so unregistered use is a weaker position than many sellers assume.

How to Verify IP Ownership in Turkey

To verify IP ownership in Turkey, cross-check every asset the seller lists against the official TÜRKPATENT register rather than relying on the seller’s own schedule. The public register at turkpatent.gov.tr shows the current recorded owner, the status of each right, priority and filing dates, renewal deadlines and any recorded licences or security interests. This register, not the data room spreadsheet, is the source of truth.

When you work through how to verify IP ownership in Turkey, confirm several things for each right:

• The recorded owner is the target company itself, not a founder, a distributor or an affiliated entity.
• The mark or patent is in force and has not lapsed for non-renewal or unpaid annuities.
• The goods and services classes actually cover the products the business sells.
• For international assets, the WIPO records (wipo.int) confirm that a Madrid registration extends to the markets the business operates in.

Knowing how to verify IP ownership in Turkey also means reading the chain of title. If the rights were assigned in the past, confirm each assignment was recorded at TÜRKPATENT, because an unrecorded assignment can be difficult to rely on against third parties. Where a founder or predecessor still appears as owner, treat that as an open item to close before completion.

An IP Due Diligence Checklist for Acquisitions

A practical IP due diligence checklist for acquisitions turns a vague review into a defined set of confirmations. Use the checklist below as a starting framework and adapt it to the size and sector of the deal.

1. Inventory: list every registered and unregistered right, with registration numbers and classes.
2. Ownership: confirm the recorded owner at TÜRKPATENT matches the target for each asset.
3. Status and deadlines: check that each right is in force, and note upcoming renewal and annuity dates.
4. Encumbrances: identify recorded licences, pledges, security interests or co-ownership.
5. Disputes: check for oppositions, cancellation actions or invalidity requests pending before TÜRKPATENT.
6. Agreements: review licences, franchise, distribution, employment and development contracts for IP ownership and change-of-control terms.
7. Clearance: assess whether the target’s use of a mark or product risks infringing an earlier third-party right.
8. Transfer plan: define what must be assigned, recorded or renewed to deliver clean title at closing.

A disciplined IP due diligence checklist for acquisitions is most useful when each line item is tied to primary evidence, a register extract, a signed agreement or a recorded assignment, rather than a seller assurance. The list below shows where the evidence for each right type usually comes from.

• Trademarks: check the TÜRKPATENT register, and watch for a mark owned by a founder or affiliate rather than the company.
• Patents and utility models: check the TÜRKPATENT register and annuity records, and watch for rights that have lapsed for unpaid annuities.
• Industrial designs: check the TÜRKPATENT design register, and watch for a product design that was never filed.
• International marks: check the WIPO Madrid records, and watch for key export markets that were never designated.
• Domains and software: check the registrar and the development contracts, and watch for assets registered to an employee or an outside agency.

Common Red Flags and Deal Risks

The most serious IP risks when buying a Turkish company tend to repeat across deals, and most are visible once you know where to look. Watch for split ownership, where the operating company uses marks owned by a holding entity or an individual. Watch for lapsed rights, where a valuable patent or design has quietly expired for a missed renewal.

Other frequent findings include marks registered in too few classes to cover the actual product range, brands used for years but never registered, and software or logos created by an outside agency that never assigned the copyright. Change-of-control clauses deserve close attention: a licence that a business depends on may allow the licensor to walk away the moment the shares change hands. Pending oppositions or cancellation requests before TÜRKPATENT can also cloud the value of a mark you are counting on.

None of these findings has to kill a deal. They shape it. A well-run process converts each red flag into a price adjustment, a warranty, a condition to closing or a pre-completion fix such as recording an assignment or paying an overdue renewal.

Assignments, Recordals and Post-Deal Steps

Once the review is done, the value of the review is captured through the transfer mechanics. In a share deal, the company keeps its rights and you inherit them as they stand, which makes the accuracy of the register review critical. In an asset deal, each right must be assigned individually, and every assignment of a registered trademark, patent or design should be recorded at TÜRKPATENT so it is effective against third parties.

Plan the post-closing recordals before you sign, not after. Draw up the list of assets to be assigned, prepare the assignment documents and the power of attorney needed to file the recordals, and diarise the renewal and annuity deadlines that fall due in the first year. Where the target relied on unregistered marks, filing fresh applications quickly protects the brand you just paid for. Official fees, timelines and procedural rules at TÜRKPATENT change over time, so treat any figure here as accurate as of the time this article is written and confirm current details with a trademark and patent attorney before you rely on them.

Handled well, IP due diligence in Turkey moves from a defensive check to a value tool: it tells you what you are truly buying, protects the purchase price, and leaves you with a clean, transferable portfolio on day one. If you are preparing to buy or invest in a Turkish company, early diligence on these rights is the step that keeps the brand and technology you are paying for firmly in your hands.

Frequently Asked Questions

What is IP due diligence in Turkey?

IP due diligence in Turkey is a structured review of a target company’s trademarks, patents, designs and other intellectual property before an acquisition or investment. It confirms what the company owns, whether those rights are valid and in force, and whether they can be transferred to the buyer with clean title.

Why does IP due diligence matter when buying a Turkish company?

It matters because the brand and technology are often the most valuable assets in the deal, yet ownership is frequently split or incomplete. Understanding the IP risks when buying a Turkish company early lets you renegotiate the price, require a clean assignment or add protective conditions before you close.

How do I verify IP ownership in Turkey?

To verify IP ownership in Turkey, cross-check each asset against the official TÜRKPATENT register at turkpatent.gov.tr rather than the seller’s schedule. The register shows the current owner, the status of the right, the classes covered and any recorded licences or security interests, which is the reliable source of truth.

What should an IP due diligence checklist for acquisitions include?

An IP due diligence checklist for acquisitions should cover the full asset inventory, ownership confirmation at TÜRKPATENT, status and renewal deadlines, encumbrances, pending disputes, key contracts, freedom-to-operate clearance and a transfer plan. Each item should be backed by primary evidence, not a seller assurance.

What does trademark due diligence in Turkey involve?

Trademark due diligence in Turkey involves confirming who owns each mark, whether it is in force, which goods and services classes it covers, and whether it faces any opposition or cancellation request. Because Turkey is a first-to-file country, it also flags valuable marks that are used but never registered.

What are the most common IP risks when buying a Turkish company?

The most common IP risks when buying a Turkish company are marks owned by a founder or affiliate instead of the company, lapsed patents or designs, brands used but never registered, and licences that terminate on a change of control. Each is usually visible once the register and key contracts are reviewed properly.

Do IP assignments need to be recorded in Turkey?

Yes. An assignment of a registered trademark, patent or design should be recorded at TÜRKPATENT so it is effective against third parties. An unrecorded assignment can be difficult to rely on, so recordals should be planned as a post-closing step before the deal is signed.

When should IP due diligence start in a deal?

IP due diligence should start early, alongside financial and commercial review, not in the final week before signing. Early review gives time to close ownership gaps, plan assignments and renewals, and reflect any findings in the price and the deal terms.

About Leo Patent

Leo Patent is a leading trademark and patent attorney firm (marka ve patent vekili) serving foreign and Turkish clients across Türkiye. The firm is registered before the Turkish Patent and Trademark Office (TÜRKPATENT) and the Istanbul Chamber of Commerce (registration no. 308755-5), and handles trademark, patent, design and other intellectual property registrations in Türkiye and internationally.

This article was prepared under the supervision of Burak Ünal, general manager of Leo Patent, registered trademark attorney (TÜRKPATENT reg. no. 2900) and registered patent attorney (TÜRKPATENT reg. no. 1677). He holds a Business Management degree from Boğaziçi University (2016) and an MSc in Finance from the London School of Economics, which he attended as a Chevening Scholar; he is also a congress member of Galatasaray Sports Club. He advises clients in Turkish, English, French and Chinese. In Türkiye, trademark and patent attorneys are a regulated profession separate from lawyers: Burak Ünal is not a lawyer, and Leo Patent does not provide lawyer services or court representation.

Need help with a trademark or patent in Türkiye? Contact Leo Patent for a consultation: www.leopatent.com · [email protected] · WhatsApp +90 532 689 48 18.

Disclaimer: Leo Patent is a trademark and patent attorney firm (marka ve patent vekili) and is not a law firm; it does not provide lawyer services, legal advice or court representation. This article is for general informational purposes only and you are strongly advised to consult a qualified professional to evaluate your personal situation. No liability is accepted that may arise from the use of the information in this article.