Last edited 09 Feb 2026

The Patents Act 1977

The Patents Act 1977 is the primary legislation governing patent law in the United Kingdom, establishing the legal framework for granting, managing, and enforcing patents. It was enacted on July 29, 1977, and harmonised UK law with the European Patent Convention (EPC) and the Patent Co-operation Treaty (PCT) to foster innovation. It was designed to balance the interests of inventors (granting exclusive rights) with that of public interest, facilitating technological advancement and has been amended over time, including post-Brexit adjustments in 2019 and 2020, but it continues to remain as the foundation of UK patent law. Key aspects of the Act include:

For the full Act of law see The Patents Act 1977, up to date with all changes known to be in force on or before 08 February 2026. There are changes that may be brought into force at a future date.See also Copyright, Designs and Patents Act 1988, and the Trade Marks Act 1994.

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