Authority Listing
The Certificates of Correction File contains a listing of all Certificates of Correction for US patent documents and lists the following fields:
Document Number
Publication Date
Kind of Document Code (always "X6")
Publication Date
Kind of Document Code (always "X6")
The Certificates of Correction File is normally updated on a monthly basis.
In addition, layout information (Updated) for the Certificates of Correction File is provided. Additional information regarding Certificates of Correction can be found on the list at the following location https://www.uspto.gov/patents/basics/manage#correction .
Click here to download the zipped file (last updated Dec. 13, 2025).
Click here to download the zipped file - New Version (last updated Dec. 13, 2025).