Seán Walton

Seán Walton
Seán joined Mewburn Ellis LLP in 1990, qualifying as a Chartered Patent Attorney and a European Patent Attorney in 1994. He joined the partnership in 1996. Seán handles patent work in the biotechnology field in particular immunology, antibody engineering, vaccines, diagnostics and medical devices, especially for drug delivery. Seán has considerable experience of European opposition and appeal procedure and advises in strategic patent portfolio planning and analysis, including for applications and oppositions relating to several of the currently world-leading approved biopharmaceuticals. He has been involved in various UK and US litigation and interference proceedings. His clients include major international, US and European companies, including pharma and biotechnology companies, also smaller growing and start-up companies in the USA, UK and Europe, and research institutions.

Recent Posts

Oppositions a case to remember: we forced a fuller view of technical features

Seán Walton

Seán Walton
11 Nov 2019

With one of the strongest life sciences patent teams in Europe, we’ve always played an active role at the EPO – and in some of the most important legal.

Meet The Team: Seán Walton, Partner, European Patent Attorney

Seán Walton

Seán Walton
01 Nov 2019

“Today is the 29th anniversary of my joining Mewburn Ellis,” remarks Seán Walton, adding that he first acted as a lead representative at a multi-party.

The pioneering work of Professor Sir Greg Winter

Seán Walton

Seán Walton
03 Oct 2018

Professor Sir Greg Winter’s pioneering work using phage display for the directed evolution of antibodies has been recognised with a Nobel Prize..