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Title 35 — Patents

Part III · Chapter 25 — Amendment and Correction of Patents

§ 256. Correction of named inventor

Statutory text

(a)

Correction.—

Whenever through error a person is named in an issued patent as the inventor, or through error an inventor is not named in an issued patent, the Director may, on application of all the parties and assignees, with proof of the facts and such other requirements as may be imposed, issue a certificate correcting such error.

(b)

Patent Valid if Error Corrected.—

The error of omitting inventors or naming persons who are not inventors shall not invalidate the patent in which such error occurred if it can be corrected as provided in this section. The court before which such matter is called in question may order correction of the patent on notice and hearing of all parties concerned and the Director shall issue a certificate accordingly.

Legislative history

Reconstructed from this section’s Code source credit and amendment notes, resolved against the local Statutes at Large. Editorial notes are evidence, not the law that made the change.

  1. July 19, 1952, ch. 950, 66 Stat. 810 · 66 Stat. 810

    Enacted · 35 U.S.C. § 256

    July 19, 1952, ch. 950, 66 Stat. 810

    Source evidence

    Code source credit
    July 19, 1952, ch. 950, 66 Stat. 810

  2. Pub. L. 97–247 § 6(b) · 96 Stat. 317

    1. Substituted · 35 U.S.C. § 256

      Pub. L. 97–247 substituted “Correction of named inventor” for “Misjoinder of inventor” as section catchline and, in text

    2. Substituted · 35 U.S.C. § 256

      Pub. L. 97–247 substituted “Whenever through error a person is named in an issued patent as the inventor, or through error an inventor is not named in an issued patent and such error arose without any deceptive intention on his part, the Commissioner may, on application of all the parties and assignees, with proof of the facts and such other requirements as may be imposed, issue a certificate correcting such error” for “Whenever a patent is issued on the application of persons as joint inventors and it appears that one of such persons was not in fact a joint inventor, and that he was included as a joint inventor by error and without any deceptive intention, the Commissioner may, on application of all the parties and assignees, with proof of the facts and such other requirements as may be imposed, issue a certificate deleting the name of the erroneously joined person from the patent”

    3. Substituted · 35 U.S.C. § 256

      Pub. L. 97–247 substituted “The error of omitting inventors or naming persons who are not inventors shall not invalidate the patent in which such error occurred if it can be corrected as provided in this section” for “Whenever a patent is issued and it appears that a person was a joint inventor, but was omitted by error and without deceptive intention on his part, the Commissioner may, on application of all the parties and assignees, with proof of the facts and such other requirements as may be imposed, issue a certificate adding his name to the patent as a joint inventor”

    4. Struck · 35 U.S.C. § 256

      Pub. L. 97–247 struck out provision that the misjoinder or nonjoinder of joint inventors not invalidate a patent, if such error could be corrected as provided in this section

    Source evidence

    Code amendment note
    Pub. L. 97–247 substituted “Correction of named inventor” for “Misjoinder of inventor” as section catchline and, in text, substituted “Whenever through error a person is named in an issued patent as the inventor, or through error an inventor is not named in an issued patent and such error arose without any deceptive intention on his part, the Commissioner may, on application of all the parties and assignees, with proof of the facts and such other requirements as may be imposed, issue a certificate correcting such error” for “Whenever a patent is issued on the application of persons as joint inventors and it appears that one of such persons was not in fact a joint inventor, and that he was included as a joint inventor by error and without any deceptive intention, the Commissioner may, on application of all the parties and assignees, with proof of the facts and such other requirements as may be imposed, issue a certificate deleting the name of the erroneously joined person from the patent”, substituted “The error of omitting inventors or naming persons who are not inventors shall not invalidate the patent in which such error occurred if it can be corrected as provided in this section” for “Whenever a patent is issued and it appears that a person was a joint inventor, but was omitted by error and without deceptive intention on his part, the Commissioner may, on application of all the parties and assignees, with proof of the facts and such other requirements as may be imposed, issue a certificate adding his name to the patent as a joint inventor”, and struck out provision that the misjoinder or nonjoinder of joint inventors not invalidate a patent, if such error could be corrected as provided in this section.

    Enacted provision · exact public law section
    (b) Section 256 of title 35, United States Code, is amended to read as follows: “§ 256. Correction of named inventor “Whenever through error a person is named in an issued patent as the inventor, or through error an inventor is not named in an issued patent and such error arose without any deceptive intention on his part, the Commissioner may, on application of all the parties and assignees, with proof of the facts and such other requirements as may be imposed, issue a certificate correcting such error. “The error of omitting inventors or naming persons who are not inventors shall not invalidate the patent in which such error occurred if it can be corrected as provided in this section. The court before which such matter is called in question may order correction of the patent on notice and hearing of all parties concerned and the Commissioner shall issue a certificate accordingly.”.

  3. District of Columbia Appropriations Act, 2000

    Pub. L. 106–113 div. B § 1000(a)(9)(tIV)(s4732)(a)(10)(A) · 113 Stat. 1501

    1. Amended · 35 U.S.C. § 256

      Pub. L. 106–113, as amended by Pub. L. 107–273

    2. Substituted · 35 U.S.C. § 256

      Pub. L. 106–113, as substituted “Director” for “Commissioner” in two places

    Source evidence

    Code amendment note
    Pub. L. 106–113, as amended by Pub. L. 107–273, substituted “Director” for “Commissioner” in two places.

  4. Intellectual Property and High Technology Technical Amendments Act of 2002

    Pub. L. 107–273 div. C title III § 13206(b)(1)(B) · 116 Stat. 1758

    Changed · 35 U.S.C. § 256

    Pub. L. 107–273 made technical correction to directory language of Pub. L. 106–113. See 1999 Amendment note below

    Source evidence

    Code amendment note
    Pub. L. 107–273 made technical correction to directory language of Pub. L. 106–113. See 1999 Amendment note below.

    Enacted provision · exact public law section
    (B) in paragraph (10)(A), by inserting after “title 35, United States Code,” the following: “other than sections 1 through 6 (as amended by chapter 1 of this subtitle),”.

  5. Pub. L. 112–29 § 20(f) · 125 Stat. 334

    1. Amended · 35 U.S.C. § 256

      Pub. L. 112–29 designated first and second pars. as subsecs. (a) and (b), respectively

    2. Inserted · 35 U.S.C. § 256

      Pub. L. 112–29 inserted headings, and, in subsec. (a)

    3. Struck · 35 U.S.C. § 256

      Pub. L. 112–29 struck out “and such error arose without any deceptive intention on his part” after “not named in an issued patent”

    Source evidence

    Code amendment note
    Pub. L. 112–29 designated first and second pars. as subsecs. (a) and (b), respectively, inserted headings, and, in subsec. (a), struck out “and such error arose without any deceptive intention on his part” after “not named in an issued patent”.

    Enacted provision · exact public law section
    (f) Correction of Named Inventor.— Section 256 of title 35, United States Code, is amended— (1) in the first undesignated paragraph— (A) by striking “Whenever” and inserting “(a) Correction.—Whenever”; and (B) by striking “and such error arose without any deceptive intention on his part”; and (2) in the second undesignated paragraph, by striking “The error” and inserting “(b) Patent Valid if Error Corrected.—The error”.

    Effective date note
    Amendment by Pub. L. 112–29 effective upon the expiration of the 1-year period beginning on Sept. 16, 2011, and applicable to proceedings commenced on or after that effective date, see section 20(l) of Pub. L. 112–29, set out as a note under section 2 of this title.

8 of 11 references resolved to an enrolled provision · 3 partial

Notes

Historical and Revision Notes

This section is new and is companion to section 116.

The first two paragraphs provide for the correction of the inadvertent joining or nonjoining of a person as a joint inventor. The third paragraph provides that a patent shall not be invalid for such cause, and also provides that a court may order correction of a patent; the two sentences of this paragraph are independent.

Editorial Notes

Amendments1982–2011 · 4 rounds

2011

Pub. L. 112–29 designated first and second pars. as subsecs. (a) and (b), respectively, inserted headings, and, in subsec. (a), struck out “and such error arose without any deceptive intention on his part” after “not named in an issued patent”.

2002

Pub. L. 107–273 made technical correction to directory language of Pub. L. 106–113. See 1999 Amendment note below.

1999

Pub. L. 106–113, as amended by Pub. L. 107–273, substituted “Director” for “Commissioner” in two places.

1982

Pub. L. 97–247 substituted “Correction of named inventor” for “Misjoinder of inventor” as section catchline and, in text, substituted “Whenever through error a person is named in an issued patent as the inventor, or through error an inventor is not named in an issued patent and such error arose without any deceptive intention on his part, the Commissioner may, on application of all the parties and assignees, with proof of the facts and such other requirements as may be imposed, issue a certificate correcting such error” for “Whenever a patent is issued on the application of persons as joint inventors and it appears that one of such persons was not in fact a joint inventor, and that he was included as a joint inventor by error and without any deceptive intention, the Commissioner may, on application of all the parties and assignees, with proof of the facts and such other requirements as may be imposed, issue a certificate deleting the name of the erroneously joined person from the patent”, substituted “The error of omitting inventors or naming persons who are not inventors shall not invalidate the patent in which such error occurred if it can be corrected as provided in this section” for “Whenever a patent is issued and it appears that a person was a joint inventor, but was omitted by error and without deceptive intention on his part, the Commissioner may, on application of all the parties and assignees, with proof of the facts and such other requirements as may be imposed, issue a certificate adding his name to the patent as a joint inventor”, and struck out provision that the misjoinder or nonjoinder of joint inventors not invalidate a patent, if such error could be corrected as provided in this section.

Statutory Notes and Related Subsidiaries

Effective Date of 2011 Amendment

Amendment by Pub. L. 112–29 effective upon the expiration of the 1-year period beginning on , and applicable to proceedings commenced on or after that effective date, see section 20(l) of Pub. L. 112–29, set out as a note under section 2 of this title.

Effective Date of 1999 Amendment

Amendment by Pub. L. 106–113 effective 4 months after , see section 1000(a)(9) [title IV, § 4731] of Pub. L. 106–113, set out as a note under section 1 of this title.

Effective Date of 1982 Amendment

Amendment by Pub. L. 97–247 effective six months after , see section 17(c) of Pub. L. 97–247, set out as an Effective Date note under section 294 of this title.

Credits

1952–2011 · 5 acts
  1. 1952July 19, 1952, ch. 950, 66 Stat. 810
  2. 1982Pub. L. 97–247, § 6(b), , 96 Stat. 320
  3. 1999Pub. L. 106–113, div. B, § 1000(a)(9) [title IV, § 4732(a)(10)(A)], , 113 Stat. 1536, 1501A–582
  4. 2002Pub. L. 107–273, div. C, title III, § 13206(b)(1)(B), , 116 Stat. 1906
  5. 2011Pub. L. 112–29, § 20(f), , 125 Stat. 334.
Show as published

(July 19, 1952, ch. 950, 66 Stat. 810; Pub. L. 97–247, § 6(b), , 96 Stat. 320; Pub. L. 106–113, div. B, § 1000(a)(9) [title IV, § 4732(a)(10)(A)], , 113 Stat. 1536, 1501A–582; Pub. L. 107–273, div. C, title III, § 13206(b)(1)(B), , 116 Stat. 1906; Pub. L. 112–29, § 20(f), , 125 Stat. 334.)

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