The Delhi High Court criticizes the Patent Office for arbitrary decisions, emphasizing the need for clear reasoning on “obviousness.” This landmark ruling could reshape how patents are examined in India, boosting transparency and fairness for inventors.
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NEW DELHI: The Delhi High Court recently raised serious concerns about the way patent applications are examined in India, describing some practices at the Patent Office as arbitrary and legally unsatisfactory. The remarks came in the case of Tapas Chatterjee v. Assistant Controller of Patents and Designs & Anr, highlighting the need for greater rigor and transparency in assessing inventions.
Background of the Case
Tapas Chatterjee had filed a patent application for a process to recover valuable by-products, including potassium sulphate, magnesium sulphate, and activated carbon, from the residue of alcohol distillation. The invention, derived from molasses-based distillery effluent, aimed to provide a cost-effective and environmentally conscious solution for waste management.
The Council of Scientific and Industrial Research (CSIR) opposed the patent before it was granted, arguing that the process was obvious and lacked an inventive step. The Assistant Controller of Patents (AC) agreed with CSIR and rejected Chatterjee’s application. Chatterjee challenged this decision in the High Court.
The Court’s Observations
A Division Bench of Justices C Hari Shankar and Ajay Digpaul did not mince words in its critique. Some key observations include:
- Lack of Guidance on Obviousness:
The Indian Patents Act, 1970, provides no clear framework for determining whether an invention is obvious to a “person skilled in the art.” This leads to decisions being made based on subjective opinions rather than objective reasoning. - Rule-of-Thumb Decisions:
According to the Court, patent examiners often rely on superficial or cursory assessments, reducing proceedings to “a mere mockery.” In Chatterjee’s case, the AC simply noted prior art references and concluded that the invention was obvious—without any detailed reasoning. - Requirement for Explicit Justification:
The Bench emphasized that examiners must clearly explain how the prior art would enable a skilled person to arrive at the claimed invention. A mere statement of obviousness, without supporting analysis, is legally inadequate. - Balancing Transparency and Expertise:
While some inventions may appear obviously derivative at first glance, others require careful technical reasoning. The Court underscored the responsibility of the patent office to provide well-reasoned, transparent decisions rather than relying on arbitrary judgments.
The Delhi High Court set aside the patent office’s order and directed that the application and CSIR’s objections be re-evaluated afresh within six months. This serves as a significant reminder that patent examiners must uphold both legal and technical rigor in their assessments.
Appearance:
For the appellant: Advocates Pravin Anand, Prachi Agarwal, Arpita Kulshrestha and Elisha Sinha
For the Assistant Controller of Patents and Designs: Advocates Vijay Joshi, Kuldeep Singh and Shubham Chaturvedi
For CSIR: Advocates Vindhya S Mani, Ritvik Sharma, Naina Gupta, Bhuvan Malhotra, Surbhi Nautiyal, Harshita Agarwal, Devesh Aswal and Vedika Singhvi
Case Title:
Tapas Chatterjee v Assistant Controller of Patents and Designs & Anr
LPA 836/2023, CM APPL. 66718/2023, CM APPL. 66719/2023, CM APPL. 66720/2023, CM APPL. 66721/2023 & CM APPL. 66722/2023
Read Judgment: