NSN Law Firm

Intellectual property is the core practice of NSN Law Firm. With nine partners and around 30 lawyers, the firm provides an ‘all in one’ IP law service that is reflected in the firm’s practice groups – namely the copyright practice group, the trademark and design practice group, the advertising practice group and the patent and life sciences practice group.

The firm strives to meet its clients’ diverse needs in various industries by providing tailor-made and creative solutions. The firm’s dedicated service approach helps clients stand out in their respective sectors; this approach also means that the firm is involved in cutting-edge litigations leading to landmark decisions.

Located in Istanbul, NSN has associate offices in three big cities of Turkey, which enables it to effectively protect its clients’ IP rights throughout Turkey before the civil and criminal IP courts, prosecution offices and Customs. The firm also enjoys longstanding relationships with law offices around the world, allowing it to assist clients in handling international disputes in different jurisdictions.

Practice areas

The firm’s trademark practice covers trademark availability searches; trademark filings; trademark maintenance; drafting of assignments or licences; monitoring, drafting and filing oppositions; filing of applications for recognition of a trademark as a well-known mark; and any kind of work at prosecution and litigation level.

One of the firm’s main distinguishing features is its ability to actively provide counselling in all areas of intellectual property. The firm thus handles a wide range of patent proceedings, whether contentious and non-contentious, which involves counselling on licensing; technology transfers, freedom-to-operate issues, data exclusivity; and conducting patent litigation proceedings such as infringement, invalidity, unfair competition and negative clearance actions. The firm is also highly experienced in regulatory matters, especially in the life sciences. The firm’s long-established practice in the field of life sciences regulation enables the team to blend its IP litigation strategy with sectoral knowledge.

The team has also in-depth knowledge of the practice of IP law in other regulated industries such as pharmaceuticals, food and beverages, telecommunication, media, tobacco and alcohol. It advises multinational innovator pharmaceutical, medical device, cosmetic and food companies on various matters, including issuance of licensing agreements, pricing, reimbursement regulations, marketing authorisation procedures, clinical trial and observational study projects, compliance and promotion practices. Wide regulatory experience helps the firm to evaluate IP disputes from a wider perspective and resolve disputes by using both IP law and regulatory tools. This also helps the firm provide more cost-effective solutions, as regulatory solutions are often more cost-friendly than IP litigation procedures.


The sub-teams dedicated to specific clients have comprehensive knowledge of their clients’ needs, as they know their clients and their history very well and take their needs and requirements from the past into account when providing a new service. Using technological online data systems also helps the team improve collaboration, provide clarity and achieve better results. The team’s language skills also enable the firm to provide its services in English and French, in addition to Turkish, whenever needed.

Awards and memberships

The firm was named the “Best Trademark Counsel” by the trademark department of a client from the healthcare industry in 2019 after being recognised as an “Agent with Excellence in Client Services” by the same company in 2016. The firm and its individual partners have been ranked among the top-tier IP firms in Turkey in the most reputable rankings of the world such as The Legal 500, MIP, IAM, WTR, and Chambers and Partners.

In particular, the senior IP partner has been listed among MIP’s IP Stars of 2020 and the Top 250 Women in IP in 2020, as was the case in the past few years. In 2020, Who’s Who Legal selected her as a global leader for Life Sciences-Patent Litigation, Product Liability, Regulatory and Patents.

The firm is a member of various international organisations, such as INTA, the European Communities Trademark Association, the Pharmaceutical Trademarks Group, MARQUES, the Chartered Institute of Trademark Attorneys, the Turkish branch of the International Association for the Protection of Intellectual Property, Union-IP and the Intellectual Property Owners’ Association.

Contact details

NSN Law Firm
Altunizade Burhaniye Mah Atilla Sok
6 Üsküdar
Istanbul 34676

Professional contacts

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