EVALVE INC v EDWARDS LIFESCIENCES LTD Patents Court Birss J.: 9–13, 17 and 18 December 2019 and 12 March 2020 [2020] EWHC 514 (Pat); [2020] R.P.C. 12

Abstract

H1 Patents – European patents – Infringement – Validity – Medical devices – Mitral valve repairs – Long felt want – Technical merit arguments – Pleadings – Construction – Novelty – Inventive step – Hindsight – Approach to prior art documents – Added matter – Intermediate generalisation – Infringement on “normal construction” – Doctrine of equivalents – Amendment