Discuss the different methods of revocation available under the Indian patent Act, 1970.

Under the Indian Patent Act, 1970, revocation of a patent refers to the cancellation or annulment of the granted patent. The act provides several methods for revoking a patent, which can be initiated by different parties under specific circumstances. These methods are provided to ensure that patents are only granted to inventions that fulfill the necessary criteria and are not inappropriately monopolized by individuals or entities.

1. Revocation by a Third Party (Section 64)

One of the primary methods for revocation is by a third party, who can challenge the validity of the patent. Under Section 64 of the Indian Patent Act, any person interested (such as a competitor, an individual, or a company) can file a petition before the Controller of Patents for the revocation of a patent. This can be done on several grounds, including:

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