Patent grant single-page TIFF images (JUL 31, 1790 - present) (Grant Yellow Book 2 based on WIPO ST.33)Back to Results
Contains the images of each patent grant issued weekly (Tuesdays) from July 31, 1790 to present in Tagged Image File Format (TIFF) Revision 6.0 with CCITT Group 4 Compression (single-page TIFFs). Includes a separate weekly Certificates-of-Correction (C-of-C) file and a daily Certificates file.
These historical statistics are data for requests for reexamination filed since 7/1/1981 (for ex parte) or since 11/29/1999 (for inter partes). They are updated weekly.
Latest Release2012-09-25 Download (1.73 MB)
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