NOTE: As of September 30, 2022, the USPTO has deprecated the servers that were used by this tool. We are working on updating this page to make use of the new servers. Thank you for your support over the years!

As of October 18, 2022, *individual* utility searches (only) are working again. We are working hard to restore full functionality.

We are receiving reports of failed lookups. Please report failed lookups (see HELP section below).

Download U.S. patents (in PDF) and more!

To download a copy of a patent from the U.S. Patent and Trademark Office, please enter your request in the format below.

For: Enter:
US Utility Patent 5123123 or 5,123,123

Enter Number(s):

To link to a patent, please use the following format:
http://www.pat2pdf.org/pat2pdf/foo.pl?number=XXXXXXX where XXXXXXX is the patent number.

NOTE: Failed patents will be removed from cache every 15 minutes. If you retrieve an empty PDF, please try again 15 minutes later.