About isipat

Isipat was founded by Dr. I. Tahhan in 2009. Mr. Tahhan studied mechanical engineering at the Technical University of Berlin and the University of Berkeley, California. He worked for several years as head of the R&D department in a microsystem technology startup company and holds a PhD in engineering of the University of Freiburg.


Mr. Tahhan has been working in the field of intellectual property since 2005 and is registered as a patent attorney with the German Patent Office (DPMA) in Munich, as well as the European Union Intellectual Property Office (EUIPO) in Alicante. He is also a professional representative before the European Patent Office (EPO).


Now close to its 10th year, isipat has built a strong reputation amongst its clients. Its reputable client base is steadily growing; often, by word of mouth and personal recommendation. isipat provides services to clients in virtually all fields of intellectual property, including:


  • Patents and utility models
  • Trade marks and designs
  • Copyright and employee invention law
  • Litigation and enforcement of IP rights

Service for international customers

Regarding the specific requirements of international customers on the one hand, and local regulations on the other, isipat provides extensive national know-how in various fields:


  • Conformance of foreign application documents in order to meet German patent office requirements
  • Filing service for all types of IP applications before DPMA, EPO, EUIPO, and WIPO
  • Evaluation of an application‘s chances of success which is filed in Germany with respect to the national state of the art
  • Development of custom strategies for achieving and preserving intellectual property rights in Germany
  • Preliminary search, freedom-to-operate analysis and monitoring of third party IP, in particular, if the information is available only in German
  • Preparation and filing the requisite letters of protection in order to prevent a temporary injunction, e.g. prior to exhibitions
  • Representation of a party in every type of litigation before the German Federal Patent Court as well as regional courts throughout Germany
  • Preparation of professional translations of e.g. priority documents, applications or legal correspondence - from English into German and vice-versa at competitive prices
  • Prompt payment of national application and maintenance fees; reminder service
  • Freiburg has very good traffic connections to Munich (residence of German Patent and Trademark Office, Federal Patents Court) in case personal attendance is necessary


Why should you select isipat as your national representative for IP and related concerns?


  • As a small enterprise, isipat has low administrative costs - the cost-benefit is passed on to the customer.
  • Flexibility is standard – you decide to which extent you wish to be supported.
  • Prompt execution and personal support with regard to each individual case instead of impersonal mass processing.
  • Only one contact person - no information loss, but highly effective communication.


Interested? Use the contact form or call at +49-7661-390 309 (8:00 - 22:00 CET).