35 U.S.C. § 253
Section 253 · Disclaimer
Amended 3 times on record
Applied in 134 court decisions — leading case In re Gartside (2000)
Most recently applied in In Re CELLECT, LLC (August 2023)
Cases citing this section usually also cite 35 U.S.C. § 102 · 35 U.S.C. § 103 · 35 U.S.C. § 101
How often courts cite this section
Court decisions citing this, by year.Markers show enactment, consequential amendments, and circuit splits over this section — watch for a citation surge after a change or a disagreement. The dip in the last several years is a data-coverage gap, not a real trend — our corpus holds fewer opinions from the most recent years, so recent citations are undercounted.
(a) In General.—Whenever a claim of a patent is invalid the remaining claims shall not thereby be rendered invalid. A patentee, whether of the whole or any sectional interest therein, may, on payment of the fee required by law, make disclaimer of any complete claim, stating therein the extent of his interest in such patent. Such disclaimer shall be in writing, and recorded in the Patent and Trademark Office; and it shall thereafter be considered as part of the original patent to the extent of the interest possessed by the disclaimant and by those claiming under him.
(b) Additional Disclaimer or Dedication.—In the manner set forth in subsection (a), any patentee or applicant may disclaim or dedicate to the public the entire term, or any terminal part of the term, of the patent granted or to be granted.
Editorial notes U.S. Code · Office of the Law Revision Counsel
Historical and Revision Notes
Based on Title 35, U.S.C., 1946 ed., §65 (R.S. 4917).
Language is changed and substantive changes are introduced; (1) only a claim as a whole may be disclaimed, and (2) the provision regarding delay is omitted. See preliminary general description of bill.
See section 288.
The second paragraph is new and provides for the disclaiming or dedication of an entire patent, or any terminal part of the term, for example, a patentee may disclaim the last three years of the term of his patent.
Amendments
2011—Pub. L. 112–29 designated first and second pars. as subsecs. (a) and (b), respectively, inserted headings, in subsec. (a), substituted “Whenever” for “Whenever, without any deceptive intention,”, and, in subsec. (b), substituted “In the manner set forth in subsection (a),” for “In like manner”.
1975—Pub. L. 93–596 substituted “Patent and Trademark Office” for “Patent Office”.
Effective Date of 2011 Amendment
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.
Effective Date of 1975 Amendment
Amendment by Pub. L. 93–596 effective Jan. 2, 1975, see section 4 of Pub. L. 93–596, set out as a note under section 1111 of Title 15, Commerce and Trade.