MPEP § 1485 — MPEP § 1485
Current through: 2022-07-01

1485-Handling of Request for Certificates of Correction 
 
 

 
 
 
 
 
 
 
 

 

 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 

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 Manual of Patent Examining Procedure 

 Chapter 1400 

 Section 1485 
 

 
 
 
 
 
 1485 Handling of Request for Certificates of Correction [R-01.2024]

 A request for a certificate of correction should be addressed to: 

 Commissioner for Patents
Office of Data Management Attention: Certificates of
 Correction Branch
P.O. Box 1450
Alexandria, VA 22313-1450
 

 A request for a certificate of correction filed via the
 USPTO patent electronic filing system should use the document description: Request for
 Certificate of Correction.
 

 Requests for certificates of correction will be forwarded to the
 Certificates of Correction Branch of the Office of Data Management, where they will be
 listed in a permanent record book.
 

 If the patent is involved in an interference or a trial before the Patent
 Trial and Appeal Board, a certificate of correction under 37 CFR 1.323 or
 37 CFR
 1.324 will not be issued unless a corresponding motion under
 37 CFR
 41.121(a)(2) , 41.121(a)(3) , 42.20 or
 42.22 has been granted by the administrative patent judge. See
 MPEP §§
 1481 and 1481.02 . If the patent is involved in a
 contested case under 37 CFR part 42, subpart D, a certificate of correction under
 37 CFR
 1.324 will not be issued unless a corresponding motion under
 37 CFR
 42.22 has been granted by the administrative patent judge. Otherwise,
 determination as to whether an error has been made, the responsibility for the error, if
 any, and whether the error is of such a nature as to justify the issuance of a certificate
 of correction will be made by the Certificates of Correction Branch. If a report is
 necessary in making such determination, the case will be forwarded to the appropriate group
 with a request that the report be furnished. If no certificate of correction is to issue,
 the patentee making the request is so notified and the request, report, if any, and copy of
 the communication to the patentee are entered into the file history by the Certificates of
 Correction Branch. If a certificate of correction is to issue, it will be prepared and
 forwarded to the patentee by the Office of Data Management. In that case, the request, the
 report, if any, and a copy of the letter transmitting the certificate of correction will be
 entered into the file history.
 

 Applicants, or their attorneys or agents, are urged to submit the text of
 the correction on a special Certificate of Correction form, PTO/SB/44 (also referred to as
 Form PTO-1050), which can serve as the camera copy for use in direct offset printing of the
 certificate of correction. In addition to the Certificate of Correction form, the request
 must include a signed request, which should identify support in the application for any
 Office errors in the patent. If the request is not signed, it will not be accepted by the
 Office.
 

 Where only a part of a request can be approved, or where the Office
 discovers and includes additional corrections, the patentee is notified of the changes on
 the Notification of Approval-in-part form PTOL-404. The certificate is issued approximately
 6 weeks thereafter.
 

 Form PTO/SB/44 should be used exclusively regardless of the length or
 complexity of the subject matter. Intricate chemical formulas or page of specification or
 drawings may be reproduced and mounted on a blank copy of PTO/SB/44. Failure to use the
 form has frequently delayed issuance because the text must be retyped by the Office onto a
 PTO/SB/44.
 

 The exact page and line number where the errors occur in the application
 file should be identified on the request. However, on form PTO/SB/44, only the column and
 line number in the printed patent should be used.
 

 The patent grant should be retained by the patentee. The Office does not
 attach the certificate of correction to patentee’s copy of the patent. The patent grant
 will be returned to the patentee if submitted.
 

 Below is a sample form illustrating a variety of corrections and the
 suggested manner of setting out the format. Particular attention is directed to:
 

 
 (A) Identification of the exact point of error by reference to column
 and line number of the printed patent for changes in the specification or to claim
 number and line where a claim is involved.
 

 (B) Conservation of space on the form by typing single space, beginning
 two lines down from the printed message.
 

 (C) Starting the correction to each separate column as a sentence, and
 using semicolons to separate corrections within the same column, where possible.
 

 (D) Leaving a two-inch space blank at bottom of the last sheet for the
 signature of the attesting officer.
 

 (E) Using quotation marks to enclose the exact subject matter to be
 deleted or corrected; using double hyphens (-- --) to enclose subject matter to be
 added, except for formulas.
 

 (F) Where a formula is involved, setting out only that portion thereof
 which is to be corrected or, if necessary, pasting a photocopy onto form
 PTO/SB/44.
 

 
 
 UNITED STATES PATENT AND TRADEMARK OFFICE CERTIFICATE OF CORRECTION

 Patent No.: 99,999,999

 Application No.: 99/999,999

 Issue Date: May 1, 2002

 Inventor(s): Eli Y. Rosenthal

 
 
 It is certified that error appears in the above-identified patent and
 that said Letters Patent is hereby corrected as shown below:
 

 
 
 In the drawings, Sheet 3, Fig. 3, the reference numeral 225 should be
 applied to the plate element attached to the support member 207.
 

 
 
 Column 2, line 68 and column 3, lines 3, 8 and 13, for the claim
 reference numeral '2', each occurrence, should read -1-.
 

 
 
 Column 7, lines 45 to 49, the left-hand formula should appear as
 follows:
 

 -R 3 -CHF
 

 
 
 Column 8, Formula XVII, that portion of the formula
 reading 
 

 -CHClCH-

 should read --CHFCH 2 --; line 5, 
 

 chlorine

 should be changed to --fluorine--.

 
 
 Column 10, line 29, cancel the text beginning with 
 "12. A sensor device"
 
 
 to and ending
 
 "active strips."
 
 
 in column
 11, line 10, and insert the following claim:
 

 12. A control circuit of the character set forth in claim 4 and for an
 automobile having a convertible top, and including; means for moving the top between a
 raised and lowered retracted position; and control means responsive to a sensor relay
 for energizing the top moving means for moving said top from a retracted position to a
 raised position.
 

 I. ELECTRONIC PUBLICATION OF CERTIFICATES OF CORRECTION WITH LATER LISTING IN THE
 OFFICIAL GAZETTE As of January 30, 2024, all certificates of correction are issued
 electronically. No paper certificates of correction will be reissued in electronic form.
 For all certificates of correction issued prior to January 30, 2024, the paper
 certificate will still be the official certificate of correction provided for by
 statute.
 

 A listing of all certificates of correction for U.S. patent documents
 is available on the USPTO website at www.uspto.gov/
 CertificatesOfCorrection (e.g., as a downloadable zipped file). The
 electronic image of a certificate of correction can be accessed in both the public and
 private views of Patent Center and on the patent database at www.uspto.gov/PatentPublicSearch . Certificates of correction are
 also subsequently listed in the Official Gazette (and in the
 Official Gazette Notices posted at www.uspto.gov/OfficialGazette ). The listing of certificates of
 correction in the Official Gazette will include the certificate’s
 date of issuance. 
 

 On the date on which a certificate of correction is electronically
 issued: (A) the certificate of correction will be entered into the file history and will
 be available in both the public and private views of Patent Center; (B) a notice will be
 sent to the patent owner to indicate that a certificate of correction has issued; and
 (C) an image of the certificate of correction will be added to the image of the patent
 on the patent database at www.uspto.gov/PatentPublicSearch . The USPTO will not mail a paper
 copy of the certificate of correction. 
 

 The date on which the USPTO makes the certificate of
 correction available to the public (e.g., by adding the certificate of correction to the
 file history after signature) will be regarded as the date of issuance of the
 certificate of correction, not the date of the certificate of correction appearing in
 the Official Gazette. Certificates of correction published in the
 above-described manner will provide the public with prompt notice and access, and this
 is consistent with the legislative intent behind the American Inventors Protection Act
 of 1999. See 35 U.S.C.
 10(a) (authorizing the USPTO to publish in electronic form).
 

 

 

 

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 1400.01-Introduction 

 1401-Reissue 

 1402-Grounds for Filing 

 1403-Diligence in Filing 

 1404-Submission of Papers Where Reissue Patent Is in Litigation 

 1405-Reissue and Patent Term 

 1406-Citation and Consideration of References Cited in Original Patent 

 1407-1409-[Reserved] 

 1410-Content of Reissue Application 
 1410.01-Reissue Applicant and Inventor's Oath or Declaration 

 1410.02-Assignee Consent to the Reissue 

 
 

 1411-Form of Specification 
 1411.01-Certificate of Correction or Disclaimer in Original Patent 

 1411.02-New Matter 

 
 

 1412-Content of Claims 
 1412.01-Reissue Claims Must Be for Same General Invention 

 1412.02-Recapture of Canceled Subject Matter 

 1412.03-Broadening Reissue Claims 

 1412.04-Correction of Inventorship By Reissue 

 1412.05-Correction of Inventorship in a Broadening Reissue Application 

 
 

 1413-Drawings 

 1414-Content of Reissue Oath/Declaration 
 1414.01-Reissue Oath or Declaration in Reissue Application Filed On or After September 16, 2012 

 1414.02-Reissue Oath or Declaration in Reissue Application Filed Before September 16, 2012 

 1414.03-Supplemental Reissue Oath/Declaration 

 
 

 1415-Reissue Application and Issue Fees 
 1415.01-Maintenance Fees on the Original Patent 

 
 

 1416-No Physical Surrender of Original Patent 

 1417-Claim for Priority Under 35 U.S.C. 119(a)-(d) 

 1418-Notification of Prior/Concurrent Proceedings and Decisions Thereon, and of Information Known To Be Material to Patentability 

 1419-1429-[Reserved] 

 1430-Reissue Files Open to the Public and, Notice of Filing Reissue Announced in, Official Gazette 

 1431-1439-[Reserved] 

 1440-Examination of Reissue Application 

 1441-Two-Month Delay Period 
 1441.01-Protest and Pre-issuance Submission in Reissue Applications 

 
 

 1442-Special Status 
 1442.01-Litigation-Related or PTAB Trial-Related Reissues 

 1442.02-Concurrent Litigation or Trial Before the Patent Trial and Appeal Board 

 1442.03-Litigation Stayed 

 1442.04-Litigation Involving Patent 

 1442.05-Court Ordered Filing of Reissue Application 

 
 

 1443-Initial Examiner Review 

 1444-Review of Reissue Oath/Declaration 

 1445-Reissue Application Examined in Same Manner as Original Application 

 1446-1447-[Reserved] 

 1448-Fraud, Inequitable Conduct, or Duty of Disclosure Issues 

 1449-Protest Filed in Reissue Where Patent Is in Interference or Contested Case 
 1449.01-Concurrent Office Proceedings 

 1449.02-Interference in Reissue 

 1449.03-Reissue Application in Derivation Proceeding 

 
 

 1450-Restriction and Election of Species Made in Reissue Application 

 1451-Divisional Reissue Applications; Continuation Reissue Applications Where the Parent is Pending 

 1452-Request for Continued Examination of Reissue Application 

 1453-Amendments to Reissue Applications 

 1454-Appeal Brief 

 1455-Allowance and Issue 

 1456-Reissue Review 

 1457-Design Reissue Applications and Patents 

 1458-1459-[Reserved] 

 1460-Effect of Reissue 

 1461-1469-[Reserved] 

 1470-Public Access to Reissue Applications 

 1471-1479-[Reserved] 

 1480-Certificates of Correction — Office Mistake 
 1480.01-Expedited Issuance of Certificates of Correction - Error Attributable to Office 

 
 

 1481-Certificates of Correction - Applicant’s Mistake 
 1481.01-Correction of Assignees’ Names 

 1481.02-Correction of Named Inventor 

 1481.03-Correction of 35 U.S.C. 119 and 35 U.S.C. 120 Benefits 

 
 

 1482-1484-[Reserved] 

 1485-Handling of Request for Certificates of Correction 

 1486-1489-[Reserved] 

 1490-Disclaimers 

 

 

 
 

 
 
 

 
 

 

 
 
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 Last Modified: 
 
 03/09/2026 20:50:35