Research Guides: Patents: Where to Search

Google Patent Search

Google Patents covers the entire collection of granted patents and published patent applications from the USPTO, EPO, and WIPO. US patent documents date back to 1790, EPO and WIPO to 1978.

Help for Missouri S&T Entrepreneurs

The Office of Technology Transfer and Economic Development (TTED) serves as the focal point for technology commercialization, entrepreneurship, business development, and economic development for Missouri S&T.

Patent Sources

United States Patent and Trademark Office (USPTO)
Official website for US patents; provides resources for searching existing patents and trademarks and general information about the patent process
espacenet
Database from the European Patent Office (EPO), which maintains a free database of worldwide patents, including patents issued by national patent offices in Europe
World Intellectual Property Organization (WIPO)
Provides access to 35 million national and international patent documents through its Patentscope database
J-Plat Pat
Search for Japanese patents back to 1976 using the PAJ database
Interactive Patent Coverage Map
Allows you to click on a country to determine coverage for that country by known patent search systems, sorted by the type of coverage they offer (full text, bibliographic, etc.)