Judgment has been handed down in D.W. Windsor Limited v Urbis Schreder Ltd [2025] EWHC 563 (IPEC), a patents dispute, following a 2-day trial in the IPEC on 17 and 18 December 2024.

D.W. Windsor, a leading British designer and manufacturer of lighting solutions, brought a claim against Urbis Schreder alleging infringement of two of its patents. By the time of trial only the validity of the patents was in issue. In a 126-paragraph judgment, H.H.J. Melissa Clarke held that key claims of the patents were valid and admitted infringed.

The judgment includes detailed consideration of the law applicable to identifying the person skilled in the art.

Adrian de Froment represented the successful claimant, D.W. Windsor, with Lucy Marlow of Fox Williams LLP and Andrew White of Mathys & Squire LLP.