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Thomas Leffers, LL.M.




German Patent Attorney

Belgian Patent Attorney

European Patent Attorney

European Trademark and Design Attorney





Thomas Leffers is a German patent attorney, a Belgian patent attorney and also qualified as representative before the European Patent Office (EPO) as well as the European Union Intellectual Property Office (EUIPO).  After qualifying as a patent attorney, he further obtained an LL.M. in the field of „European Intellectual Property Law“ with a strong focus on international patent infringement proceedings from the University of Hagen. 


Thomas studied industrial mathematics with the application subjects medical technology, electrical engineering and mechanical engineering. After having started his career in a leading German law firm, he became managing partner in a medium-sized German IP law firm. 


Thomas supports national and international start-ups, medium-sized firms and large corporations in all kinds of Intellectual Property (IP), including patent, trademark and design issues. He has extensive experience in opposition, infringement and nullity proceedings as well as in drafting and prosecuting German, European, UK, PCT- and US- patent applications in a wide variety of technical fields, particularly in the area of electrical engineering, computer-implemented inventions (software and hardware), telecommunications and medical technology. Therein, Thomas has deep knowledge regarding the case law with respect to software patents in Germany, the UK, Europe and the US and also deep knowledge regarding the case law with respect to  surgery, therapy and diagnostic methods. 


What is most important for Thomas is to look after his clients, to provide them with more than just the requested information and to always try to achieve the best results for each individual client. 


Further, Thomas has published articles about the avantages of the EU’s patent reform agenda on international civil procedure law and software patents in Germany, Europe, the UK and the US.


Furthermore, Thomas is fluent in German, English and French. He also speaks Spanish at a beginner level.