e-CFR Navigation Aids


Simple Search

Advanced Search

 — Boolean

 — Proximity


Search History

Search Tips


Latest Updates

User Info


Agency List

Incorporation By Reference

eCFR logo

Related Resources

Electronic Code of Federal Regulations

We invite you to try out our new beta eCFR site at https://ecfr.federalregister.gov. We have made big changes to make the eCFR easier to use. Be sure to leave feedback using the Feedback button on the bottom right of each page!

e-CFR data is current as of November 25, 2020

Title 37Chapter IPart 41Subpart E → §41.201

Title 37: Patents, Trademarks, and Copyrights
Subpart E—Patent Interferences

§41.201   Definitions.

In addition to the definitions in §§41.2 and 41.100, the following definitions apply to proceedings under this subpart:

Accord benefit means Board recognition that a patent application provides a proper constructive reduction to practice under 35 U.S.C. 102(g)(1).

Constructive reduction to practice means a described and enabled anticipation under 35 U.S.C. 102(g)(1), in a patent application of the subject matter of a count. Earliest constructive reduction to practice means the first constructive reduction to practice that has been continuously disclosed through a chain of patent applications including in the involved application or patent. For the chain to be continuous, each subsequent application must comply with the requirements of 35 U.S.C. 119-121, 365, or 386.

Count means the Board's description of the interfering subject matter that sets the scope of admissible proofs on priority. Where there is more than one count, each count must describe a patentably distinct invention.

Involved claim means, for the purposes of 35 U.S.C. 135(a), a claim that has been designated as corresponding to the count.

Senior party means the party entitled to the presumption under §41.207(a)(1) that it is the prior inventor. Any other party is a junior party.

Threshold issue means an issue that, if resolved in favor of the movant, would deprive the opponent of standing in the interference. Threshold issues may include:

(1) No interference-in-fact, and

(2) In the case of an involved application claim first made after the publication of the movant's application or issuance of the movant's patent:

(i) Repose under 35 U.S.C. 135(b) in view of the movant's patent or published application, or

(ii) Unpatentability for lack of written description under 35 U.S.C. 112 of an involved application claim where the applicant suggested, or could have suggested, an interference under §41.202(a).

[69 FR 50003, Aug. 12, 2004, as amended at 77 FR 46631, Aug. 6, 2012; 80 FR 17971, Apr. 2, 2015]

Need assistance?