Home: Reference: Patents Search Engines


Delphion Research Intellectual Property Network - [New Window] - For international patent and us patent information, the Delphion intellectual property network's patent search database helps businesses perform intellectual property monitoring.

FreePatentsOnline - [New Window] - The FreePatentsOnline search engine is one of the most powerful, fastest and easiest patent search engines on the web. Our search allows advanced search techniques such as word stemming, proximity searching, relevancy ranking and search term weighting to help you find exactly what you are looking for. And, our account features let you organize, annotate and share documents, and Alerts let you instantly be notified when new documents of interest are published.

Google Patent Search - [New Window] - With Google Patent Search, you can now search the full text of the U.S. patent corpus and find patents that interest you.

Intellectual Property Office - [New Window] - Intellectual Property Office is an operating name of the UK Patent Office

Patents.com - [New Window] - Patents.com provides the most comprehensive worldwide source of patent data - to include 450 million searchable indexed patent pages available in 15 native languages. It is a source for patent data and analytic tools and a hosted community platform enabling users to connect to generate business opportunities, including the licensing and sale of intellectual property. Our Mission: To empower users to find the relevant patent and technology information and connect people they need to advance technology.

PatentStorm - [New Window] - PatentStorm offers full-text U.S. patents and patent applications from the U.S. Patent Office, providing advanced search capabilities and full image retrieval in handy PDF format. Everything we offer is free.

Whether you are an inventor, a patent attorney, a patent agent or just curious about how things work, this site is for you. Our database contains issued patents (including utility, design and plant patents) back to 1976, and yet-to-be approved patent applications back to 2005. Our content is updated weekly - at the same time the U.S. Patent Office updates theirs.

United States Patent and Trademark Office - [New Window] - Official web site.