USPTO directory

Search U.S. patent documents.

Browse patent metadata without signing in or paying. Published listings identify their matching USPTO record; opening that official document costs $1.00 and requires verified payment.

Search by publication number, title, inventor, or assignee

Filter by patent type

Metadata browsing is free. Each official USPTO document opens only after its matching $1.00 payment is verified.

Loading validated records…

Pdfgps is an independent directory, not the U.S. Patent and Trademark Office. Only records validated against an official USPTO destination are published here.