A Recipe for Trouble: Patents and Trade Secrets at Calcutta HC
In the case of NOCIL Ltd v. Finorchem Ltd and Anr, the Calcutta High Court considered whether a rival that plans to make the same rubber chemical, and…
Prior Art
25 articles
A Sound Beginning or Chaos in the Making? Artificial Intelligence (AI) in Patent Examination
The Indian Patent Office has taken a necessary first step by issuing Guidelines for the use of artificial intelligence in patent examination. The real test, however, lies in…
Use of AI in Patent Examination: Guidelines of Indian IP Office
The Indian Intellectual Property Office published the Guidelines for the Use of Artificial Intelligence in Patent Examination Procedures on 7 August 2026. The Guidelines relate to the use…
Pixel Perfect Prior Art – NEC’s Video Coding Patent rejected
NEC Corporation's appeal over the refusal of its video coding patent has been dismissed by the Delhi High Court, which confirmed that the invention lacks inventive step under…
When Your Own Patents Anticipate You: The Sulzer Mixpac Mixer Case
Sulzer Mixpac appealed the rejection of its static mixer patent to the Delhi High Court, arguing its own prior patents did not anticipate the claimed design. The court…
Fresh Hearing, Not Fresh Hunting: Patent Remand After Breach of Natural Justice
In the case of Qualyst Transporter Solutions LLC v. The Assistant Controller of Patents and Designs, the Court dealt with a familiar patent prosecution problem. When a refusal…
Absorbable Stent and the Hindsight Trap in Inventive Step Analysis
In the case of Biotyx Medical Shenzhen Co., Ltd. v. Assistant Controller of Patents and Designs, the Delhi High Court dealt with a familiar patent question: can an…
Court Remands Patent Rejection Over IV Catheter, Cites Flawed Obviousness Test
Delhi HC sets aside patent rejection for IV catheter, citing flawed inventive step analysis under Agriboard test and lack of reasoned decision.
Non-Disclosure of Prior Art in Hearing Notice Violates Natural Justice, Rules Delhi High Court
In Croda Inc. v. Controller of Patents, the Delhi High Court emphasized procedural fairness and ruled that the non-disclosure of prior art in a hearing notice constitutes a…
Patent Application Rejection Set Aside for Improper Citation of Withdrawn Prior Art
The Madras High Court overturned a patent rejection due to improper citation of withdrawn prior art, directing a fresh examination. The case highlights the necessity for strict compliance…