Lawyers Güldeniz Doğan Alkan

    Güldeniz Doğan Alkan joined the firm in 2006 and has been a partner since 2017. Güldeniz is both lawyer and a trademark and patent attorney specializing in Intellectual Property law. She focuses on trademark and design, and copyright as well as unfair competition.

    Güldeniz advises on both contentious and non-contentious matters including implementing IP protection and enforcement strategies, and represents clients before the Ankara IP courts (including actions against the Turkish Patent and Trademark Office) and represents clients before courts in cancellation, infringement and other types of action. She also works in IP enforcement where she supervises and drafts oppositions and appeals on trademark and design applications before the Turkish Patent and Trademark Office.

    She represents foreign, multinational and Turkish clients from numerous business sectors including food and beverage, fashion, cosmetics, textile, electronics, entertainment, hotel and tourism, media and entertainment, pharmaceuticals, radio and TV broadcasting, telecoms, tobacco on all aspects of Intellectual Property and regulatory matters.

    Practice Areas & Work Department

    Intellectual Property

    Trademarks and Designs








    European Communities Trademark Association (ECTA), Member of Publication Committee

    Association Internationale pour la Protection de la Propriété Intellectuelle (AIPPI)

    International Trademark Association (INTA)

    Patent and Trademark Attorneys’ Association of Turkey (PEM), Board Member

    Association of Trademark and Design Law Practitioners (APRAM)

    Pharmaceutical Trade Marks Group (PTMG)

    Intellectual Property and Competition Law Commission of Ankara Bar

    European Communities Trade Mark Association (ECTA)

    The Association of European Trade Mark Owners (MARQUES), Member of Designs Team

    Implementation of the Limitation of Goods and Services by the Turkish Patent and Trademark Office

    The Turkish Patent and Trademark Office (‘office’) applies the Nice Classification for the classification of goods and services in the registration process of national and international trademarks. Undertakings try to avoid possible conflicts by, for example, restricting their trademarks to the area in which they operate and/or differentiating the goods and services within the scope of their trademark from those covered by earlier similar trademarks. In other words, undertakings aim to circumvent the trademark rights and fields of activity of others by ‘limiting’ the scope of their trademarks, so that they can prevent a likelihood of confusion and co-exist in the market, even if the signs are similar.
    Güldeniz Doğan Alkan

    Proof of Bad Faith: The Turkish Court of Cassation Adopts a Surprising Stance

    In a case, the Turkish Civil IP Court decided for the invalidation of a trademark registration identical to the plaintiff’s mark and trade name. The decision noted that: The plaintiff held a registration for the same class in the EU (but not in Turkey) before the trademark at issue; andThe plaintiff’s mark had a high distinctiveness and the defendant could not have created the mark on its own, coincidentally.In light of these points, the local court concluded that the defendant registered the mark intentionally to take unfair advantage of the well-known status of the plaintiff’s mark and was therefore in bad faith. Indeed, the defendant holds other trademarks that are well known in Turkey or have the potential to be well known in Turkey, which is also proof of the defendant’s bad faith.
    Güldeniz Doğan Alkan

    Countdown to Revocation Requests at the TPTO

    In one year’s time, trade mark revocation proceedings will be possible before the Turkish Patent and Trademark Office (TPTO). Güldeniz Doğan Alkan and Cansu Evren discuss the changes. Article 26 of the IP Code After years of proceeding with a Decree Law, the Intellectual Property Code no. 6769 entered into force in Turkey on 10 January 2017. Article 26 of the IP Code regulates the revocation of a trade mark registration. It foresees that the trade mark shall be revoked in the following conditions:
    Güldeniz Doğan Alkan