Shedding Further Light on Obviousness – the Schering/Richter case
In a judgment dated 17 March 2011 reported at [2011] EWHC 583 (Pat), the English High Court has upheld certain claims of two patents (deriving from the same ultimate parent application) for the formulation of Ethinylestradiol (“EE”) and Drospirenone (“DSP”) used in contraception. The patents in issue belonged to Bayer Schering Pharma AG. The Hungarian…