Michael Tappin QC and William Duncan appeared for the successful patentee in this claim for revocation by GSK and counterclaim for infringement by Wyeth. The patent related to meningitis B vaccines, identifying a valuable new vaccine candidate now known as factor H binding protein, that forms part of GSK’s Bexsero vaccine. The attacks against the patent were numerous and varied: insufficiency, obviousness, anticipation, added matter and lack of priority. The judge (Henry Carr J) rejected all of these attacks, finding the patent both valid and infringed.