Introduction In a recent judgment dated August 22, 2025, the Madras High Court in Amgen Inc. v. Assistant Controller of Patents 1overturned the Controller’s decision to reject patent Application No. 5857/CHENP/2008 which had been rejected under Sections 3(d), 3(e), 2(1)(ja) (lack of inventive step), and 10(4) of the Patents Act, 1970 for insufficiency of disclosure. […]