Patent Numberunique number assigned to a patent application when it issues as a patent -- see list -- see patent numbering formats for an explanation of the codes that…
Patent PendingA phrase that often appears on manufactured items. It means that someone has applied for a patent on an invention that is contained in the manufactured…
Patent SearchA study of the patent literature to determine the state of the art in a particular field; a study of the patent literature in a particular field to…
Patent TermThe period during which a patent is valid.
Patent WatchThe process of continuously monitoring newly published patent applications and issued patents in a particular field.
PatentabilityThe issue of whether an invention is capable of being patented in a particular jurisdiction.
patentability searchA search of existing patents and, perhaps, other publications to determine if the invention is novel and non obvious and thus patentable.
Patentablesuitable to be patented; entitled by law to be protected by the issuance of a patent.
PCT (Patent Cooperation Treaty)created a patent application that is standardized across the nations that signed it, which allows patent applicants to simultaneously seek protection for…
PendingThe status of a patent application that occurs before either an application is abandoned (withdrawn) or a patent issues.
Person Skilled in the ArtA fictitious person who has knowledge of all prior art and who has ordinary skill in the art to which the invention pertains. MPEP 2141.03.
PetitionPetition refers to the Form I-129 that is filed with USCIS by a prospective H-1B employer seeking approval to employ an H-1B worker and its accompanying…
Petition for Extension of TimeA petition requesting an extension of the time period for response to an Office action. Payment of a fee is sometimes required. MPEP 710.02(e).
Petition to ReviveA petition that a patent application be revived from either unintentional or unavoidable abandonment. MPEP 711.03(c).
PetitionforCertiorariA petition to the U.S. Supreme Court to review the decision of a lower court.
Pioneer InventionAn invention that breaks new ground in a technological art or that creates a new art.
Pioneer PatentA patent on an invention that breaks new ground in a technological art or that creates a new art.
plant patentmay be granted to anyone who invents or discovers and asexually reproduces any distinct and new variety of plant. --see also patent
preambleThe formal introductory clause of a patent claim. Depending on the circumstances, the preamble may or may not define a narrowing element of the claim.
Preamble of ClaimThe part of the claim that precedes the transitional phrase. Often the preamble states the purpose of the invention, as in "A device for transporting cars…
PrecedentLaws established by previous cases which must be followed in actions involving identical circumstances. See stare decisis in Foreign Words Glossary.
preferred embodimentThe preferred embodiment of an invention can usually be interpreted as being recited as the best mode known to the inventor of carrying out the invention.
prejudgment interestIn patent litigation, prejudgment interest is interest on monetary judgment against an infringer awarded to a prevailing party measured from the date of…
Preliminary AmendmentAn amendment to a patent application filed simultaneously with the filing of the patent application or an amendment to a patent application filed before…
Preliminary ExaminationA preindictment hearing at which the prosecutor must present evidence sufficient to establish probable cause that a federal offense was committed and that…
Preliminary Examination ReportA report notifying an applicant of the results of an International Preliminary Examination. MPEP 1860.
Preliminary StatementIn an interference proceeding, a statement made under oath that sets out who made an invention and where and when it was made. MPEP 2321, MPEP 2322.
prior artit's what we live for! It is technology or knowledge of technology, existing in the public domain, in the form of existing patents, trade publications…
Prior Public UseDisplay of an unpatented invention under circumstances in which the invention enters the public domain. MPEP 2133.01(a).
prior-art statementAlso known as an information disclosure statement, this is a document filed in the U.S.
priorityThe Bankruptcy Code's statutory ranking of unsecured claims that determines the order in which unsecured claims will be paid if there is not enough money…
Priority DateThe filing date of the first patent application disclosing an invention, which filing date has occurred no more than 12 months before the filing date of a…
Priority DocumentA certified copy of a patent application filed no more than 12 months before the filing date of the later-filed application claiming the priority date of…
Pro se ApplicantAn applicant for patent (inventor) who is representing himself/herself. MPEP 401, MPEP 707.07(j).
processA method of making something, a process of operating something or a process of using something. Under U.S. law, one of the statutory classes of inventions.
ProductA machine, an article of manufacture or a composition of matter. See Machine, Article of Manufacture, Composition of Matter. MPEP 2106.
Product By Process ClaimA patent claim that describes a product invention by descibing the process that is used to make it.
Product of NatureA thing occurring in nature that is substantially unaltered by Man. An essentially pure culture of a microorganism does not occur in nature and is not…
profitsDirect recovery of the patent infringer's profits is not possible in a case of infringement of a utility patent, but may, under proper circumstances, be…
Prolix ClaimA claim that contains long recitations or unimportant details that render the claim indefinite. MPEP 2173.05(m).
propertyFor this survey, property means real estate; that is, land and anything permanently affixed to the land, such as buildings and those things attached to…
proprietary informationInformation that is not generally known and that has competitive value, e.g., trade secrets and business information not generally known.
prosecutionThe process of fact finding and negotiation of patent claim language that occurs during the time that a patent application is pending and under…
Prosecution HistoryThe history of the prosecution of a patent application. See Prosecution.
prosecution history estoppelthe other side of the coin from doctrine of equivalence; in patent infringement lawsuits, it tends to favor the accused infringer.
ProtestA communication by a member of the public to a patent office arguing and providing evidence that the granting of a patent would be improper. MPEP 1901.
Provisional ApplicationA type of U.S. utility patent application that is used to establish priority of invention. It need not contain a claim and cannot issue as a patent.
PTOPatent and Trademark Office, former designation for USPTO also a type of form designation for forms generated by the USPTO (as in PTO-892)
Public SaleA sale or offer to sell an invention to a member of the public. A sale need not be public to bar a patent under U.S. law. MPEP 2133.03, MPEP 2133.03(b).
Public UseUtilization of a completed invention in a nonexperimental manner in public, i.e.
publicationAny document that is available to the public anywhere in the world. MPEP 2128, MPEP 2128.01, MPEP 2128.02.
Published ApplicationA patent application that has been published by a patent office during its prosection (before issue).