35 U.S.C. § 307
Section 307 · Certificate of patentability, unpatentability, and claim cancellation
This is § 1 of the Bayh-Dole Act of 1980
Amended 5 times on record
Applied in 62 court decisions — leading case Standard Havens Products, Inc. v. Gencor Industries, Inc. (1991)
Most recently applied in Vivint, Inc. v. Alarm.com. Inc. (December 2018)
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 a reexamination proceeding under this chapter, when the time for appeal has expired or any appeal proceeding has terminated, the Director will issue and publish a certificate canceling any claim of the patent finally determined to be unpatentable, confirming any claim of the patent determined to be patentable, and incorporating in the patent any proposed amended or new claim determined to be patentable.
(b) Any proposed amended or new claim determined to be patentable and incorporated into a patent following a reexamination proceeding will have the same effect as that specified in section 252 for reissued patents on the right of any person who made, purchased, or used within the United States, or imported into the United States, anything patented by such proposed amended or new claim, or who made substantial preparation for the same, prior to issuance of a certificate under the provisions of subsection (a) of this section.
Editorial notes U.S. Code · Office of the Law Revision Counsel
Amendments
2011—Subsec. (b). Pub. L. 112–29 struck out “of this title” after “252”.
2002—Subsec. (a). Pub. L. 107–273 made technical correction to directory language of Pub. L. 106–113. See 1999 Amendment note below.
1999—Subsec. (a). Pub. L. 106–113, as amended by Pub. L. 107–273, substituted “Director” for “Commissioner”.
1994—Subsec. (b). Pub. L. 103–465 substituted “used within the United States, or imported into the United States, anything” for “used anything”.
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 1999 Amendment
Amendment by Pub. L. 106–113 effective 4 months after Nov. 29, 1999, 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 1994 Amendment
Amendment by Pub. L. 103–465 effective on date that is one year after date on which the WTO Agreement enters into force with respect to the United States [Jan. 1, 1995], with provisions relating to earliest filed patent application, see section 534(a), (b)(3) of Pub. L. 103–465, set out as a note under section 154 of this title.