Philip Morris v Nicoventures – e-cigarettes light up the doctrine of equivalents and Arrow declarations
On 25 October 2023, HHJ Hacon (sitting as a High Court Judge), rendered his judgment in Philip Morris v Nicoventures[1]. The Claimants (“PMI”) sought revocation of EP (UK) No. 3 367 830 B1 (“EP 830”) and the defendants (“BAT”) counterclaimed for infringement. EP 830 was held to be invalid for lack of inventive step and…