Contains recorded maintenance fee events for patents granted from September 1, 1981 to present. Each new weekly file is cumulative.

Contains Cooperative Patent Classification (CPC) classification information for all Utility patent grants issued by the U.S. Patent and Trademark Office (USPTO) from 1790 to present. It is available as XML with schemas or text monthly (usually by the 15th of the month).

Contains Cooperative Patent Classification (CPC) classification information for all Utility patent applications published by the U.S. Patent and Trademark Office (USPTO) from 2001 to present. It is available as XML with schemas or text monthly (usually by the 15th of the month).

Contains the bibliographic text (front page) of each patent grant issued weekly (Tuesdays) from January 6, 1976 to present (excludes images/drawings). Subset of the Patent Grant Full Text Data.

Current U.S. classification information for all patent applications (non-provisional utility and plant) published by the USPTO from 2001 to present. Approx. 450 main divisions of technology, called classifications/classes, broken into approx. 150,000 subdivisions, called subclassifications/subclasses.

Contains the full text of each patent grant issued weekly (Tuesdays) from January 6, 1976 to present (excludes images/drawings). Subset of the Patent Grant Full Text Data with Embedded TIFF Images.

Also includes Full-Text for Utility patents (no Designs, or Plants, etc.) extracted from the USPTO Patent Full Text (PatFT) web database for 1971 - 1975.