To download a copy of a patent from the U.S. Patent and Trademark Office, please enter your request in the format below.
| Patent type: | Number examples: |
|---|---|
| US utility patent | 05123456, or 5123456 or 5,123,456 |
| US design patent | D0365123 |
| US X-patent, pre-1836 | X0000001 |
| US plant patent | PP012835 |
| US reissue patent | RE035136 |
| US defensive publication | T0106201 |
| US statutory invention registration | H0001520 |
| additional improvement | AI000318 |
| US Pre-Grant Publication | 20040123456 or 2004123456 |
*Note: some patents have leading zeros in the number section,it will be automatically added.