Norcros Group (Holdings) Limited (Triton Showers) appealed the decision of the Intellectual Property Enterprise Court that found Kohler Mira’s patent to be valid and infringed by Triton’s DuElec® range of dual outlet electric shower products. Triton won the appeal on both counts in a judgement handed down on 22 December 2025.
The Court of Appeal ruled that the patent was invalid for insufficiency because the boundary of the claims was uncertain to the point of being „impossible to determine“. Regardless of the validity of the patent, the Court of Appeal also held that Triton’s products did not infringe the claims either on normal interpretation or under the Doctrine of Equivalents.
Triton has thus sealed a decisive victory and continues to be free to sell its DuElec® range of products, which continue to be highly successful and well regarded in the shower market.
Forresters partners, Matthew Shaw and Jagvir Purewal, and Senior Associate, Greg Smith, provided support to Triton and their litigation team throughout the dispute.
Jagvir commented:
“This decision from The Court of Appeal has shown that both Triton Showers’ and our conviction that this patent was invalid and not infringed was right all along. We congratulate them for the win and not letting the first instance decision deter them from fighting their corner.”
Phil Viner, Managing Director of Triton Showers, remarked that
“Having been provided confident guidance from Matt and Jagvir at Forresters since the outset of this action, it’s reassuring to know that the non-infringement decision we sought from the beginning was proven out in the Court of Appeal. Thanks to the Forresters team for their support in gaining this successful, and just, outcome for Triton.”
