Founded in 1920 by Frank Bernhard Dehn, we have grown to become
one of Europe's largest firms of patent and trade mark attorneys, with people
in London, Brighton, Oxford and Munich. Our specialist practice groups serve clients in the fields of Chemistry and Biotechnology, Engineering and Electronics and Trade Marks. We are dedicated to providing high quality, creative solutions
to our clients' intellectual property needs.

For further information, or to request a brochure, please e-mail us at

Latest News

Changes to EPO Practice from 1 April 2010
The European Patent Office (EPO) has announced a number of changes to the Rules governing prosecution of European Patent Applications and International (PCT) Patent Applications entering the EPO regional phase (Euro-PCT applications). Read more..

New System for Attacking Abusive Company Name Registrations
On 1 October 2008, the Company Names Adjudicator Rules 2008 came into force, giving effect to Sections 69 - 74 of the Companies Act 2006. This introduced a system of adjudication in instances where a person or business objects to the registration of a company name that is abusive or opportunistic. Read more..

CTM Fee Reduction from 1 May 2009
From 1st May 2009, there has been a significant reduction in the cost of securing a Community Trade Mark Registration, with the official fees falling by around 40%. Read more..