The ‘Per Se’ Exclusion under Section 3(k) of the Patents Act, 1970: Patentability of Computer-Related Inventions in India

Abstract

The rapid growth of digital technologies has raised important questions regarding the patentability of computer-related inventions in India. Section 3(k) of the Patents Act, 1970 excludes “a mathematical or business method or a computer programme per se or algorithms” from patent protection. However, the expression “computer programme per se” has remained unclear and has resulted in inconsistent interpretation by the Indian Patent Office and courts. This paper examines the doctrinal and practical difficulties surrounding the application of Section 3(k), particularly in the context of modern technological innovations that combine software and hardware components.

The paper analyses the legislative framework of Section 3(k), the role of the Computer Related Inventions (CRI) Guidelines, and the evolving judicial approach toward software-related inventions. Particular attention is given to the decision of the Delhi High Court in Ferid Allani v Union of India (2019), where the Court recognised that inventions demonstrating a technical effect or technical contribution should not be rejected merely because they involve computer programs. The paper argues that the original purpose of Section 3(k) was to exclude pure software and abstract ideas from patentability, not to deny protection to genuine technological innovations involving software.

The study further identifies doctrinal concerns such as inconsistent examination standards, lack of statutory definitions, and uncertainty regarding the concepts of “technical effect” and “technical contribution.” It concludes that a clearer and more consistent interpretation of Section 3(k), focused on the technical contribution of an invention rather than the mere presence of software, is necessary to balance innovation incentives with the statutory objective of preventing monopolisation of abstract ideas.