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U.S. Patents: Home

A step-by-step guide to searching for patents on the U.S. Patent and Trademark Office site using the patent classification system.

What's Inside

News and Latest Legislation

You will find information on the latest news and legislation from the U.S. Patent and Trademark Office. This section also includes videos about the latest change in patent law known as the Leahy-Smith America Invents Act or commonly referred to as the First-Inventor-to-File Act.

Patent Information

You will find information on reading patents, tutorials on conducting a patent search, and a trouble shooting fix for viewing patent image documents.

Step 1

You will find the patent search strategy worksheet here. This section will also walk you through on using the worksheet and provide you with a couple of resources from which you can generate keywords.

Step 2

You will find a link to the Index of the U.S. Patent Classification System. This section will also walk you through on using the worksheet and index to find appropriate classification symbols.

Step 3

You will find a link to the Classification Schedule Search. This section will also walk you through on using the worksheet and classification symbols to determine their relevancy and scope.

Step 4

You will find a link to the Classification Schedule Search. This section will also walk you through on accessing the Patent Application and U.S. Patent Collection databases.

Step 5

You will find information on reading patents. This section will also provide you with some useful pointers to consider when viewing your patent to help further your search.

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