date of applicationThe date upon which duly executed application papers are received in the U.S. Patent and Trademark Office.
date of patentThe effective date of the patent. It is the date of printing of notice of the patent grant in the Official Gazette of the U.S. Patent and Trademark Office.
deada dead or abandoned status for a trademark application means that specific application is no longer under prosecution within the USPTO, and would not be…
deceased inventora named inventor who has died prior to the filing of a patent application or during the prosecution of a patent application. -- see 37 CFR 1.
declarationa document in which an applicant for patent declares, under penalty of fine or imprisonment, or both (18 USC 1001), that (1) he or she is the original or…
DedicationAn express or implied surrender to the public of an actual or potential patent right. MPEP 1490, MPEP 2138.03.
dedication to the publicA document signed by a patent owner filed in the U.S. Patent and Trademark Office giving up all patent rights.
Defensive PublicationPublication of the abstract of the technical disclosure of a pending patent application if the applicant waived his or her rights to an enforceable patent.
DefinitenessA characteristic of a patent claim in which claim language makes the scope of the claim clear to a person skilled in the art to which the invention…
DemandForm PCT/IPEA/401, filed with an International Preliminary Examining Authority, demanding that an international application shall be the subject of an…
dependent claima claim that refers back to (depends on) and further limits a preceding dependent or independent claim.
deposit accountan account that is established in the U.S. Patent and Trademark Office (USPTO), upon payment of a fee for establishing such an account, for the…
DepositionAn oral statement made before an officer authorized by law to administer oaths.
descriptive markA mark is considered merely descriptive if it describes an ingredient, quality, characteristic, function, feature, purpose or use of the specified goods…
design patentmay be granted to anyone who invents a new, original, and ornamental design for an article of manufacture -- see also patent
design patent applicationan application for a patent to protect against the unauthorized use of new, original, and ornamental designs for articles of manufacture -- see also…
Design Search Code Manuallists the numerical codes for searching designs in the USPTO's trademark database (TESS). -- see Design Search Code Manual
designationan indication made by applicant, in the Request for an International Application filed under the Patent Cooperation Treaty, as to the Contracting States…
DIDdefense in depth - multiple layers of security to provide added protection to IT resources
DiligenceThe activity required of an inventor and his attorney that must have started just prior to the entry into the field of another "inventor" and continue…
Direct InfringementMaking, using or selling a patented invention in the jurisdiction within which the patent is enforcable, or importing a patented invention or a product…
disclaimerA patentee, whether of the whole or any sectional interest therein, may, on payment of the fee required by law, make disclaimer (give up all or part of…
disclosureA disclosure document explains how a financial product or offering works. It also details the terms to which you must agree in order to buy it or use it…
disclosure documentThe USPTO eliminated its Disclosure Document Program on February 1, 2007. For more information, see the Federal Register notice: http://www.uspto.
Disclosure Document ProgramA program of the USPTO wherein, for a small fee, the USPTO will maintain a written document disclosing an invention and signed by the inventor in…
DiscoveryThis is when the Court orders each party (each side) to give each other information about the facts before the trial, to avoid surprise.
DisposalA term used in some countries, including the U.S., to mean that an application has been abandoned, denied (rejected) or allowed (granted).
DivisionDivision means the Wage and Hour Division (WHD) of the U.S. Department of Labor.
divisional applicationa later application for an independent or distinct invention disclosing and claiming (only a portion of and) only subject matter disclosed in the earlier…
DODesignated Office the national Office or intergovernmental organization of or acting for the Contracting State designated by the applicant under Chapter I…
docketA log containing brief entries of court proceedings.
doctrine of claim differentiationThis is a judicially created rule of construction that states that when two claims in the same patent have an apparently similar or identical meaning, an…
doctrine of equivalenceinvoked when a patent's claim is not literally infringed, but (here comes the is the legal jargon) "the infringing device uses substantially the same…
doctrine of equivalentsa judicially created theory for finding patent infringement when the accused process or product falls outside the literal scope of the patent claims.
domestic representativea person residing within the United States who is appointed by a patentee or assignee of a trademark application or registration that does not reside in…
DominatedCovered by one or more claims in a patent.
Dominating PatentA patent having a claim broad enough to encompass the subject matter of a claim in a subsequent patent.
double patentingAn inventive entity cannot obtain claims in two patents directed either to the same invention or to an obvious variation of the same invention.
Double Patenting RejectionA rejection of a patent claim on the grounds that it is an improper attempt to obtain more than one patent on the same invention or on an obvious variant…
DoublePatentingAn improper attempt to obtain more than one patent on the same invention or on an obvious variant of the same invention. MPEP 804, MPEP 804.01, MPEP 804.
DrawingPatent drawings must show every feature of the invention as specified in the claims.
DRMdata reference model - also known as a "data and information reference model" - describes the data and information that support program and line…
DTDdocument type definition - a format specification file that accompanies documents prepared according to SGML (standard generalized markup language)…
due diligence termsAn investigation undertaken in the course of an intellectual property transaction to verify and determine the ownership and scope of intellectual property…
Duty of Disclosureeveryone involved in the patent process at any time - both during the procurement period and during potential litigation or re-examination - must disclose…