Sebastiaan Brommersma advises on intellectual property, particularly trademarks, patents and copyrights.

His practice covers a variety of sectors, including retail, advertising, consumer goods and technology. He has been involved in litigation before various legal institutions, including the Board of Appeal of the European Patent Office and the European Union Intellectual Property Office. He litigates on behalf of major national and multinational clients and also advises them on all aspects of the protection of intellectual property rights. Sebastiaan is also frequently involved in negotiations, as well as the transfer of vast IP-portfolio's.