On July 27, while upholding the validity of one patent (the '017 patent) granted to Glaxo Group Limited, the Intellectual Property Appellate Board (IPAB) revoked another (the '171 patent), for lack of inventive step and as being hit by Section 3(d). Both the patents relate to lapatinib and its compounds. Interestingly, both decisions rest on the adequacy of the pleadings and evidence on record – while in the first case the IPAB concluded that the petitioner who challenged the patent failed to satisfy his burden of proof, in the second case, it was the patentee who failed to satisfy his burden of proof.