How are errors in prior application data on the bib-data sheet corrected?

This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice.

Errors in prior application data on the bib-data sheet are corrected as follows:

1. If the error is in the preprinted data: The examiner can have the technical support staff of the Technology Center make corrections in the Patent Data Portal database.
2. If the error is an applicant error: The examiner should require correction via a corrected or supplemental application data sheet or an amendment, as appropriate.

MPEP 202 states: “Upon entry of the data, a new bib-data sheet should be printed and scanned into the file. If the error was an applicant error, the examiner should require correction via a corrected or supplemental application data sheet or an amendment, as appropriate. See MPEP § 601.05 et seq. and MPEP § 211.02(a). A petition for an unintentionally delayed benefit claim may also be required. See MPEP § 211.04.”