Powell Gilbert | 2,278 followers on LinkedIn. Powell Gilbert is one of the most highly regarded European intellectual property litigation firms, trusted by clients across knowledge, technology and brand-based industries. We provide comprehensive IP legal services, covering patents, trade marks, copyright, designs and confidential information. Renowned for European patent litigation, including acting in Unified Patent Court (UPC) proceedings, we represent clients from all technical sectors and we are particularly recognised for our work on SEP/FRAND and life sciences disputes.