Biochemistry

The United States Patent and Trademark Office (USPTO) is the federal agency for granting U.S. patents and registering trademarks. Covers patents issued from 1790 to current.

Espacenet is accessible to beginners and experts and is updated daily. It contains data on more than 110 million patent documents from around the world. You can use Espacenet to: search and find patent publications, machine-translate patent documents, track the progress of emerging technologies, find solutions to technical problems, & see what your competitors are developing.

Google Patents includes over 120 million patent publications from 100+ patent offices around the world, as well as many more technical documents and books indexed in Google Scholar and Google Books, and documents from the Prior Art Archive.

Welcome to CIPO's Canadian Patent Database. This database lets you access 151 years of patent descriptions and images. You can search, retrieve and study more than 2,390,000 patent documents.

Covers patents and applications from USPTO, EPO, WIPO and JPL abstracts

A searchable database of Japanese patent abstracts, which includes the patent number, title, inventor, company, and abstract of the patent. (Site in Japanese)