Patents - Well Lead Medical Co Ltd v CJ Medical Ltd

Kidney Stone Author Robert R Wal Licence Public Domain Jane Lambert Intellectual Property Enterprise Court (HH Judge Hacon) Well Lead Medical Co Ltd v CJ Medical Ltd [2025] EWHC 492 (IPEC) (7 March 2025) This was an action by Well Lead Medical Co Ltd. ("Well Lead") against CJ Medical Ltd ("CJ Medical") for the infringement of EP (UK) 3 760 143 B1 and a counterclaim by CJ Medical for the revocation of that patent under s.72 (1) (a) and (d) of the Patents Act 1977. The action and counterclaim were trued by His Honour Judge Hacon on 3 and 4 Feb 2025. His Honour handed down judgment on 7 March 2025 (see Well Lead Medical Co Ltd v CJ Medical Ltd [2025] EWHC 492 (IPEC) (7 March 2025)). By para [150] of his judgment, the learned judge held that claim 3 was valid and infringed but claim 1 was invalid for obviousness. Interim Injunctive Proceedings I have previously discussed Charlotte May KC's judgment in Well Lead Medical Co Lt...