Patent searching is something of an art form. To do it well, you must be patient, methodical and creative. It's not like doing a Google search, so allow yourself time. View these tutorials before you begin.
Use these patent databases to protect your ongoing work, discover the latest technological advances, monitor competitors’ progress, and formulate fresh ideas for research.
United States Patent and Trademark Office (USPTO)
The United States Patent and Trademark Office (USPTO) web site is a good place to learn about patents and the office's mission and activities. Search the full text of patents since Jan 1, 1976. Patents issued from 1790 through 1975 are searchable only by patent number and current U.S. classifications. Page images are available back to 1790.
The USPTO now offers web access to selected information from its internal trademark database, particularly the trademark data currently available on two of PTO's Cassis CD-Rom products: Trademarks Registered and Trademarks Pending. The text will be updated on a two-month cycle. Images will be added as they become available.
Find the latest published applications before the United States Patent and Trademark Office (USPTO) grants or denies them.
Search over seven million patents through Google's patent search. Use Advanced Search (under Settings) to search by assignee, inventor, or other criteria.
Tool for quickly retrieving and downloading particular patents from the USPTO. If you have a patent number, enter it to get a scanned copy of the patent.
Explore these patent and intellectual property resources through Yahoo.
Additional Foreign Patent Resources:
Through this worldwide patent information service from the European Patent Office, freely access more than 70 million patent documents from over 90 countries for information about inventions and technical developments from 1836 to the present.
Japanese Patents (PAJ)
Your gateway to Japanese patents and trademarks.
United Kingdom Intellectual Property Office
The Intellectual Property Office (IPO) is the official UK government body responsible for intellectual property (IP) rights including patents, designs, trade marks and copyright.