How Long Does a Patent Last?

A patent typically lasts 20 years from the filing date of the application. This standard duration is common around the world, providing inventors with time to benefit from their creations before they enter the public domain. The two-decade term aims to balance inventors’ rights with the broader public interest.

Although the 20-year term is standard, variations exist depending on the type of patent and the jurisdiction. For example, pharmaceutical patents may be extended to compensate for delays during regulatory approval. Design patents, on the other hand, often have shorter terms, typically 15 years in countries like the United States.

International agreements such as the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS) have helped standardize patent laws worldwide. TRIPS sets a minimum patent term of 20 years, which most World Trade Organization member countries follow. This harmonization provides inventors with a more consistent framework when seeking protection in multiple jurisdictions.