Understanding the Grounds for Patent Revocation in India in 2025

In India, a patent serves as a legal right granted to an inventor, allowing them to exclusively use, sell, or manufacture their invention for a specified period, typically 20 years. However, this right is not absolute, and there are certain conditions under which a granted patent can be revoked. The process of patent revocation ensures that only those inventions that meet the legal requirements of novelty, inventiveness, and industrial applicability are granted patents.

In this blog, we will explore the grounds for patent revocation under the Indian Patents Act, 1970, as outlined in Section 64. Understanding these grounds is crucial for inventors, businesses, and legal professionals in safeguarding intellectual property rights and ensuring fair competition in the market.

1. Non-Patentability in India

• Lack of Novelty: The invention must be new and not part of the public domain before the filing date. If an invention is found to be similar to existing knowledge or prior art, it may be revoked on the grounds of lack of novelty.
• Absence of Inventive Step: If the invention is not significantly different from existing products or technologies and could have been easily deduced by someone skilled in the field, it can be revoked for lack of an inventive step (non-obviousness).
• Non-Industrial Applicability: A patentable invention must be capable of being used in some industry, whether manufacturing, agriculture, or commerce. If it cannot be applied in such a manner, the patent can be revoked.

2. Insufficient or Inadequate Disclosure

Under the Patents Act, the inventor is required to provide a complete and clear description of their invention. If the patent specification does not fully disclose the invention or leaves out essential information, such as the best method of performing the invention, it can be revoked. This ensures that the public can replicate the invention based on the provided details.

If the patent does not explain the invention in a manner that a person skilled in the art can understand and implement, it may be subject to revocation.

3. Fraud, False Claims, or Misrepresentation

A patent may be revoked if it was granted based on fraudulent claims, false information, or misrepresentation of facts. If the patent applicant has concealed crucial details or provided misleading data to secure the patent, the patent can be challenged and revoked.

This ground helps maintain the integrity of the patent system by ensuring that patents are granted based on honest and truthful applications.

4. Invention Contrary to Public Order or Morality

The Patents Act also allows for revocation if the invention goes against public order or morality. This includes inventions that:

• Promote unethical or harmful practices, such as inventions related to illegal activities.
• Could endanger public health or safety, like inventions with hazardous potential.

This ground is essential for maintaining ethical standards in innovation and ensuring that patents are not granted for inventions that could be harmful to society.

5. Prior Publication or Use

If an invention has been publicly disclosed or used before the patent application was filed, it can be considered to lack novelty. If such prior publication or use exists, the patent may be revoked because the invention was already in the public domain before the filing date. This ensures that patents are granted only for truly new and inventive ideas.

6. Failure to Pay Maintenance Fees

A granted patent is subject to annual maintenance fees to keep it in force. If the patent holder fails to pay these fees on time, the patent may be revoked. The payment of maintenance fees ensures that the patent remains active and enforceable throughout its term.

7. Non-Working of the Invention in India

As per Section 83 of the Patents Act, an invention should be worked in India. If the invention is not being used or manufactured in India within a reasonable period, the patent may be revoked. However, there are exceptions, such as when the patentee provides reasonable justification for not working the invention in India (e.g., due to non-commercial viability).

Revocation Process: Who Can File?

The process of patent revocation can be initiated by any interested party, including:

• Competitors: Those who believe that the patent has been wrongly granted to another party.
• The Central Government: In certain cases, the government can seek revocation for reasons of public interest.
• Third Parties: Anyone with a genuine interest in the matter can file a petition before the Intellectual Property Appellate Board (IPAB), seeking revocation.

Once the petition is filed, the patent holder has the right to respond and defend the validity of their patent. The matter is then adjudicated by the IPAB, and if the grounds for revocation are established, the patent is revoked, making the invention available for public use.

Contact Us for Expert Guidance on Patent Revocation

If you have concerns about patent revocation or need assistance navigating the legal complexities of the patent system in India, don’t hesitate to reach out to our team of experts for tailored advice and support.