Eli Lilly and CO v Genentech, Inc

H1 European patents – Revocation proceedings – Divisional Patents – Pharmaceuticals –Preliminary issue – Summary judgment - Issue estoppel – Abuse of process – UK designation of closely related patent held invalid at first instance – Permission granted to appeal to the Court of Appeal - Related patent now also held invalid in central proceedings before the EPO – Special circumstances – Injustice – Application to amend claims – Plausibility – Changes in common general knowledge – Case management