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What Are The Different Types Of Patents?
IP Protection
Types of Patent Applications in India: Which One Should You File Under the Patents Act, 1970? (Updated April 2026)

Indian patent law does not use the US “utility patent” or “plant patent” classification. Under the Patents Act, 1970, Indian inventors choose between six types of applications: ordinary, provisional, convention, PCT national phase, divisional, and patent of addition. Each serves a distinct strategic purpose. Filing the wrong type — or filing in the wrong sequence — can cost you your priority date or your protection entirely. This guide explains every type with its statutory basis and when to use it.

Intellectual Property Rights Registration in Chennai
IP Protection
Patent Opposition in India: The Complete Legal Playbook (2026)

The Indian Patents Act, 1970 gives third parties two distinct windows to challenge a patent before grant and after grant. This guide explains both tracks under Section 25, the statutory grounds for opposition, the step-by-step procedure, current fees, and the strategic decisions that determine whether a challenge succeeds.

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