What is the fee for a Certificate of Correction?

The fee for a Certificate of Correction depends on the type of correction being made. According to MPEP 1481: For corrections of applicant’s mistake (other than inventorship): The fee is set forth in 37 CFR 1.20(a). For correction of inventorship in a patent: The fee is set forth in 37 CFR 1.20(b). It’s important to…

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What types of mistakes can be corrected with a Certificate of Correction?

According to MPEP 1481, there are three types of mistakes that can be corrected with a Certificate of Correction: Clerical mistakes Typographical mistakes Mistakes of minor character The MPEP states: “Two separate statutory requirements must be met before a Certificate of Correction for an applicant’s mistake may issue. The first statutory requirement concerns the nature,…

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Can a Certificate of Correction be used to add a priority claim that was omitted from the original patent application?

Yes, a Certificate of Correction can be used to add a priority claim that was omitted from the original patent application, under certain conditions. The MPEP 1481 states: “The types of mistakes for which a certificate of correction of applicant’s mistake may be issued include the situation where ‘through error and without deceptive intention’ the…

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