37 CFR 1.71 - Detailed description and specification of the invention.

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§ 1.71 Detailed description and specification of the invention.

(a) The specification must include a written description of the invention or discovery and of the manner and process of making and using the same, and is required to be in such full, clear, concise, and exact terms as to enable any person skilled in the art or science to which the invention or discovery appertains, or with which it is most nearly connected, to make and use the same.

(b) The specification must set forth the precise invention for which a patent is solicited, in such manner as to distinguish it from other inventions and from what is old. It must describe completely a specific embodiment of the process, machine, manufacture, composition of matter or improvement invented, and must explain the mode of operation or principle whenever applicable. The best mode contemplated by the inventor of carrying out his invention must be set forth.

(c) In the case of an improvement, the specification must particularly point out the part or parts of the process, machine, manufacture, or composition of matter to which the improvement relates, and the description should be confined to the specific improvement and to such parts as necessarily cooperate with it or as may be necessary to a complete understanding or description of it.

(d) A copyright or mask work notice may be placed in a design or utility patent application adjacent to copyright and mask work material contained therein. The notice may appear at any appropriate portion of the patent application disclosure. For notices in drawings, see § 1.84(s). The content of the notice must be limited to only those elements provided for by law. For example, “© 1983 John Doe” ( 17 U.S.C. 401) and “ *M* John Doe” ( 17 U.S.C. 909) would be properly limited and, under current statutes, legally sufficient notices of copyright and mask work, respectively. Inclusion of a copyright or mask work notice will be permitted only if the authorization language set forth in paragraph (e) of this section is included at the beginning (preferably as the first paragraph) of the specification.

(e) The authorization shall read as follows:

A portion of the disclosure of this patent document contains material which is subject to (copyright or mask work) protection. The (copyright or mask work) owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all (copyright or mask work) rights whatsoever.

(f) The specification must commence on a separate sheet. Each sheet including part of the specification may not include other parts of the application or other information. The claim(s), abstract and sequence listing (if any) should not be included on a sheet including any other part of the application.


(1) The specification may disclose or be amended to disclose the names of the parties to a joint research agreement as defined in § 1.9(e).

(2) An amendment under paragraph (g)(1) of this section must be accompanied by the processing fee set forth in § 1.17(i) if not filed within one of the following time periods:

(i) Within three months of the filing date of a national application;

(ii) Within three months of the date of entry of the national stage as set forth in § 1.491 in an international application;

(iii) Before the mailing of a first Office action on the merits; or

(iv) Before the mailing of a first Office action after the filing of a request for continued examination under § 1.114.

(3) If an amendment under paragraph (g)(1) of this section is filed after the date the issue fee is paid, the patent as issued may not necessarily include the names of the parties to the joint research agreement. If the patent as issued does not include the names of the parties to the joint research agreement, the patent must be corrected to include the names of the parties to the joint research agreement by a certificate of correction under 35 U.S.C. 255 and § 1.323 for the amendment to be effective.

[ 24 FR 10332, Dec. 22, 1959, as amended at 53 FR 47808, Nov. 28, 1988; 58 FR 38723, July 20, 1993; 68 FR 38628, June 30, 2003; 70 FR 1823, Jan. 11, 2005; 70 FR 54266, Sept. 14, 2005; 78 FR 11055, Feb. 14, 2013]

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.

United States Code
U.S. Code: Title 35 - PATENTS

Title 37 published on 20-Dec-2017 04:15

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 37 CFR Part 1 after this date.

  • 2017-11-14; vol. 82 # 218 - Tuesday, November 14, 2017
    1. 82 FR 52780 - Setting and Adjusting Patent Fees During Fiscal Year 2017
      GPO FDSys XML | Text
      DEPARTMENT OF COMMERCE, Patent and Trademark Office
      Final rule.
      This rule is effective on January 16, 2018. The changes to § 1.18(b)(1) shall apply to those international design applications under the Hague Agreement having a date of international registration on or after January 16, 2018.
      37 CFR Parts 1, 41, and 42


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