We represent your interests in all fields of intellectual property rights. Our office is focussed on application procedures and enforcement of patents, trademarks and designs. Together with in-house and external attorneys-at-law, we are able to support the enforcement of your protective rights.


It is our strong belief that the quality of intellectual property rights is to be evaluated by its enforceability. Therefore, we keep enforceability in mind right from the beginning. Anticipating the increasing importance of intellectual property rights in the worldwide free market economy and also taking into consideration the monetary value of patents, designs and trademarks, it is a principle of our firm to provide only the highest quality at affordable prices.


In 1972 Dr. Hermann Diehl laid the basis for the Munich patent attorneys Diehl & Partner with a mainly domestic client base. Since then our office has expanded and enjoys continuous growth.

After having been organized for 48 years as a civil law partnership (GbR), the legal form has been changed in 2020 to a partnership company with limited professional liability.

Our clients find our patent attorneys and attorneys-at-law to be dedicated, professional and successful, to enforce their rights all over Europe . Thanks to this reputation, our firm steadily grows in the international market and an essential part of applications originate from outside of Germany. As a result of this client base, a whole department of our staff are English native speakers, to further develop this positive situation.


Due to our continuously increasing reputation, our firm was, and still is, involved in important infringement cases in Germany and other countries throughout Europe. We prepare for our clients high quality protective rights. Ensuring that the best result is achieved, our firm has obtained decisions from the Federal German Patent Court which had important impact on the interpretation of German patent law.

In the year 2021 Financial Times have decided to list our patent and law firm Diehl & Partner mbB in the list of "Europe’s Leading Patent Law Firms 2021".

Do not hesitate to contact us.