U.S. Patents

U.S. Patents Fulltext, produced by The Dialog Corporation, provides access to the complete text of all granted patents issued by the U.S. Patent and Trademark Office (USPTO) since 1976. Published applications issued since March 15, 2001 are also included.

Each record contains all front-page information, including title, author(s), assignee(s), related applications, classification data, cited references, and abstract. The complete text of the original patent or published application usually includes an image of one of the drawings, the background/field of invention, a brief summary of the invention, the detailed description/embodiment of the invention, examples, and all claims.

Additional post-issuance legal status information is supplied by IFI CLAIMS^® Patent Services for patents that have been reassigned, reexamined, granted an extension beyond the normal 17/20-year period, expired prior to the normal 17/20-year period, or reinstated after late payment of the maintenance fee.

Subject Coverage :

utility patents

published applications

defensive publications

design patents

plant patents

reissue patents

statutory invention registrations (S.I.R.s).