SmithKline Beecham Biologicals SA v Connaught Laboratories Inc

Subject Matter

PRACTICE — Discovery — Use of documents — Implied undertaking not to use for collateral or ulterior purpose — Parties providing judge with pre-trial reading guide in action to revoke patent — Guide including or referring to documents disclosed by patent holder on discovery — Patent holder offering to surrender patent on day before trial — Judge having read material revoking patent at short hearing inopen court — Whether documents remaining subject to implied undertaking — RSC, Ord 24, r 14A

[1999] EWCA Civ 1781; [1999] 4 All ER 498; 51 BMLR 91; [2000] FSR 1, CA