Rationale for PatentabilityThe reasoning behind a decision that a claimed invention is patentable. MPEP 1302.14.
Reads OnA claim includes within its scope certain subject matter.
reduction to practiceThe physical part of the inventive process that completes the process of invention. Until there is a reduction of practice, there is no invention.
Reduction to Practice, ActualBuilding a physical embodiment of an invention and testing it under conditions that would indicate to a person skilled in the art that the invention was…
Reduction to Practice, ConstructiveFiling a patent application that explains how to make and how to use an invention in sufficient detail that a person skilled in the art could practice the…
ReexaminationExamination of the patentability of an invention claimed in an issued U.S. patent at the request of the USPTO, the patent owner or a third party.
referenceA document that discloses subject matter that is material to a determination of the patentability of a claimed invention. MPEP 2126, MPEP 2126.
Reference CharacterA numeral or letter used to identify an element on a patent drawing.
ReinstatementThe process by which a life insurance company puts a policy back in force after it lapsed because of nonpayment of renewal premiums.
ReissueThe issue of a patent that was issued previously in order to correct an error in the patent. MPEP 1401, MPEP 1402.
Reissue Applicationan application for a patent to take the place of an unexpired patent that is defective in one or more particulars (items or details) --see MPEP 201.
Reissue PatentA corrected U.S. patent that issues from an allowed reissue application. MPEP 1401, MPEP 1402, MPEP 1403.
rejectionThe refusal of a patent Examiner to allow a claim based on specific legal grounds. MPEP 706, MPEP 706.01.
Rejection, FinalA rejection of a claim that occurs on the second or any subsequent examination of its patentability.
Renewal FeeThe periodic fee charge by a patent office for maintaining a patent in force. MPEP 2501, MPEP 2504, MPEP 509.
Request for ReconsiderationA written communication to a patent office asking that a decision be reconsidered. MPEP 714.13, MPEP 818.03, MPEP 1214.01, MPEP 1214.03.
request for reexaminationA request filed by a patentee or a third party seeking reexamination of one or more claims of a patent based upon an alleged substantial new issue of…
restrictionif two or more independent and distinct inventions are claimed in a single application, the examiner may require the applicant to elect (designate) a…
restriction requirementThis occurs when an examiner concludes that a patent application claims two or more independent and distinct inventions.
Revival of Abandoned ApplicationTo reinstate a patent application that has been abandoned (relinquished), either by express abandonment or by inaction.
RevocationWithdrawing the protections associated with a patent grant.
Right of PriorityThe right to priority of invention established by filing the first patent application in an appropriate patent office. MPEP 201.13, MPEP 201.
RoutineerA person having ordinary skill in an art. See Person Skilled in the Art.
royaltyPayment for use of an invention, usually a stated percentage of sales.
royalty (reasonable royalty)A hypothetical royalty fee used as a measure of damages to compensate for the infringement of a patent.