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As intellectual property law firm we provide a full range of legal services, including filing, prosecution, maintenance, defense, litigation and licensing of intellectual property rights, such as patents, trademarks, copyrights, designs and trade secrets.

Situated in Wiesbaden in the metropolitan region Rhein-Main, Germany, our firm handles patent matters for German and International clients from the fields of mechanical engineering, special machinery and environmental technologies, as well as in the fields of electrical engineering, microelectronics, computer and information technologies. Other important areas of interest are trademarks and designs.

Founded in 1985 by Dipl.-Ing. Helmut Quermann, Dipl.-Ing. Christoph Sturm joined 2004 and Dr. Carsten Weilnau joined 2009 as further partners of the firm Quermann Sturm Weilnau. After his professional training in intellectual property  at our firm, Dr. Markus Franke succeeded Dipl.- Ing. Helmut Quermann as a partner in 2020.