Patents: Leo Pharma v Sandoz Ltd.
In Leo Pharma (a/s Leo Laboratories Ltd) v Sandoz Ltd [2009] EWHC 996 (Pat) (15 May 2009) the defendant admitted that it had infringed the patent in suit but contended that the patent was invalid for lack of novelty and obviousness. The case was decided on its facts rather than on the law. On anticipation, Mr Justice Floyd summarized the principles expounded by Lord Hoffmann in Synthon BV v. Smithkline Beecham plc [2005] UKHL 59 (20 October 2005) as follows: "(1) There are two requirements for anticipation which it is important to keep separate, (a) disclosure and (b) enablement; (2) So far as disclosure is concerned, the prior art must disclose subject-matter which, if performed, would necessarily result in an infringement of the patent." In Leo Pharma the relevant subject-matter contained in the prior art document was said to disclose the invention not because it described the product in terms (which it did not), but because it was said that carrying out the disclo...