Kohler Mira Limited v. Norcros Group (Holdings) Limited [2025] EWCA Civ 1670
This appeal concerned the validity and infringement of Claimant’s patent concerning, inter alia, electric showers. Brian Nicholson KC and David Ivison appeared for the successful Appellant, Norcros, in overturning the earlier decision of HHJ Melisa Clarke sitting as a Judge of the High Court. The Court of Appeal disagreed with the trial Judge, holding that the a simple mechanical patent-in-suit was invalid for uncertainty insufficiency and, in any event, would not have been infringed by any of the defendant’s products.