Shielding Innovation: Delhi High Court Acts Against Agrochemical Patent Piracy

In a significant move to protect agricultural innovation, the High Court of Delhi has granted an ex-parte ad-interim injunction in favor of GSP Crop Science Ltd. The court’s order addresses the unauthorized distribution of a product alleged to infringe upon the plaintiff's patented synergistic insecticide formulation, IN 394568, titled “A Synergistic suspo-emulsion formulation of Pyriproxyfen and Diafenthiuron.”

The Dispute: A Threatened Patent

GSP Crop Science, a leader in agrochemical research, discovered in September 2025 that an infringing product branded as ‘Pyron’ was being aggressively marketed across various e-commerce platforms. The plaintiff asserted that this product is a "slavish copy" of its patented formulation, incorporating precise active ingredients within the protected percentage ranges.

The legal battle hinges on the protection of IN’568, which holds exclusive rights until January 2034. With significant sales figures exceeding INR 523 crores, GSP argued that the presence of the infringing product not only caused irreparable market harm but also posed risks to farmers due to the unregulated quality of the copycat formulation.

The Court’s Intervention

Presided over by Hon’ble Mr. Justice Tejas Karia, the court acknowledged the urgency of the claim. Noting the potential for the defendants to dispose of evidence or expand their infringing operations, the Court allowed an exemption from pre-institution mediation, citing the principle laid down in the Supreme Court’s Yamini Manohar v. T.K.D. Krithi ruling regarding urgent interim relief.

The Court further ordered the appointment of Local Commissioners to inspect the premises of the defendants in Bhopal and Madhya Pradesh, authorizing the seizure of infringing inventory, marketing collateral, and financial records to ensure full compliance and evidence preservation.

Key Observations

The depth of the Court’s scrutiny is reflected in its technical evaluation of the product claims. Key observations from the order include:

• "Prima facie, it is also evident that the Impugned Product ‘Pyron’ contains an SE formulation of 5% Pyriproxyfen and 25% Diafenthiuron, which falls within the range specified and covered under the Claims of IN’568."
• "There is a presumption under Section 104A of the Act that the same process as that claimed in IN’568 is being used by Defendant Nos. 1 to 4 to manufacture the Impugned Product since the Impugned Product manufactured by Defendants is identical to the product covered and claimed by IN’568."
• "There is no control that the Plaintiff enjoys over the quality of the Impugned Product, which can lead to deleterious effects on critical crops and the livelihood of farmers."

Legal Implications and Future Outlook

The court’s decision mandates that the defendants immediately cease the manufacture, advertisement, and sale of the ‘Pyron’ product. Additionally, a major e-commerce facilitator, Agribegri Tradelink, has been ordered to delist the product within 72 hours.

By shifting the burden of proof under Section 104A of the Patents Act—given the "me-too" registration of the impugned product—the court has signaled a firm stance against entities that attempt to replicate protected technology. The matter is currently listed for further proceedings on March 9, 2026, marking a pivotal moment in the enforcement of agrochemical intellectual property rights in India.