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1901 Protest Under 37 C.F.R. 1.291

MPEP SECTION SUMMARY

A protest is a means for a third party to challenge whether a pending application should issue. This section covers protests under 37 C.F.R. 1.291 including who may submit them, what should be filed with the protest, servicing a protest, and when to submit a protest.

Protests are ex parte matters. The examiner will not communicate further with the protester once the protest has been received. This section also briefly discusses protests and compliance issues.

  Section Frequency Chart

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(a) A protest may be filed by a member of the public against a pending application, and it will be matched with the application file if it adequately identifies the patent application. A protest submitted within the time frame of paragraph (b) of this section, which is not matched, or not matched in a timely manner to permit review by the examiner during prosecution, due to inadequate identification, may not be entered and may be returned to the protestor where practical, or, if return is not practical, discarded.

(b) The protest will be entered into the record of the application if, in addition to complying with paragraph (c) of this section, the protest has been served upon the applicant in accordance with § 1.248, or filed with the Office in duplicate in the event service is not possible; and, except for paragraph (b)(1) of this section, the protest was filed prior to the date the application was published under § 1.211, or the date a notice of allowance under § 1.311 was given or mailed, whichever occurs first:

    (1) If a protest is accompanied by the written consent of the applicant, the protest will be considered if the protest is filed prior to the date a notice of allowance under § 1.311 was given or mailed in the application.

    (2) A statement must accompany a protest that it is the first protest submitted in the application by the real party in interest who is submitting the protest; or the protest must comply with paragraph (c)(5) of this section. This section does not apply to the first protest filed in an application.

(c) In addition to compliance with paragraphs (a) and (b) of this section, a protest must include:

    (1) An information list of the documents, portions of documents, or other information being submitted, where each:

    (i) U.S. patent is identified by patent number, first named inventor, and issue date;

    (ii) U.S. patent application publication is identified by patent application publication number, first named inventor, and publication date;

    (iii) Foreign patent or published foreign patent application is identified by the country or patent office that issued the patent or published the application; an appropriate document number; the applicant, patentee, or first named inventor; and the publication date indicated on the patent or published application;

    (iv) Non-patent publication is identified by author (if any), title, pages being submitted, publication date, and, where available, publisher and place of publication; and

    (v) Item of other information is identified by date, if known;

    (2) A concise explanation of the relevance of each item identified in the information list pursuant to paragraph (c)(1) of this section;

    (3) A legible copy of each item identified in the information list, other than U.S. patents and U.S. patent application publications;

    (4) An English language translation of any non-English language item identified in the information list; and

    (5) If it is a second or subsequent protest by the same party in interest, an explanation as to why the issue(s) raised in the second or subsequent protest are significantly different than those raised earlier and why the significantly different issue(s) were not presented earlier, and a processing fee under § 1.17(i) must be submitted.

(d) A member of the public filing a protest in an application under this section will not receive any communication from the Office relating to the protest, other than the return of a self-addressed postcard which the member of the public may include with the protest in order to receive an acknowledgement by the Office that the protest has been received. The limited involvement of the member of the public filing a protest pursuant to this section ends with the filing of the protest, and no further submission on behalf of the protestor will be considered, unless the submission is made pursuant to paragraph (c)(5) of this section.

(e) Where a protest raising inequitable conduct issues satisfies the provisions of this section for entry, it will be entered into the application file, generally without comment on the inequitable conduct issues raised in it.

(f) In the absence of a request by the Office, an applicant need not reply to a protest.

(g) Protests that fail to comply with paragraphs (b) or (c) of this section may not be entered, and if not entered, will be returned to the protestor, or discarded, at the option of the Office.


The degree of participation allowed a protestor is solely within the discretion of the Director of the USPTO.

37 CFR 1.291 gives recognition to the value of written protests in bringing information to the attention of the Office and in avoiding the issuance of invalid patents.

  • With the exception of a protest accompanied by a written consent of the applicant, all protests must be submitted prior to the publication of the application or the date a notice of allowance is given or mailed, whichever occurs first.
  • No protest or "other form of preissuance opposition to the grant of a patent" may be initiated after publication of the application without the applicant’s express written consent as specified by 35 U.S.C. 122(c).
  • Even if applicant’s express written consent is given, the protest must be filed prior to the date a notice of allowance is given or mailed.
  • Third parties wishing to submit information in the form of patents and printed publications after publication of the application might consider whether a third-party submission under 35 U.S.C. 122(e) would be appropriate.

It is noted that a protest filed in a reissue application is not a "form of preissuance opposition to the grant of a patent" since the patent to be reissued has already been granted.

  • Thus, a protest may be filed in a reissue application throughout the pendency of the reissue application prior to the date a notice of allowance is given or mailed subject to the timing constraints of the examination.
  • A protest with regard to a reissue application should, however, be filed within the 2-month period following the announcement of the filing of the reissue application in the Official Gazette.

A protest may not be filed in a provisional application because provisional applications are not examined.

  • A protest filed in a provisional application will not be entered and will be discarded.

37 CFR 1.291(c) requires that the protest must include:

  • (A) An information list of the documents, portions of documents, or other information being submitted, where each:
    • (1) U.S. patent is identified by patent number, first named inventor, and issue date;
    • (2) U.S. patent application publication is identified by patent application publication number, first named inventor, and publication date;
    • (3) Foreign patent or published foreign patent application is identified by the country or patent office that issued the patent or published the application; an appropriate document number; the applicant, patentee, or first named inventor; and the publication date indicated on the patent or published application;
    • (4) Non-patent publication is identified by author (if any), title, pages being submitted, publication date, and, where available, publisher and place of publication; and
    • (5) Item of other information is identified by date, if known.
  • (B) A concise explanation of the relevance of each item identified in the information list;
  • (C) A legible copy of each item identified in the information list, other than U.S. patents and U.S. patent application publications;
  • (D) An English language translation of any non-English language item identified in the information list; and
  • (E) If the protest is a second or subsequent protest by the same real party in interest, the protest must further include:
    • (1) an explanation as to why the issue(s) being raised in the second or subsequent protest are significantly different than those raised earlier;
    • (2) an explanation as to why the significantly different issue(s) were not presented to the Office earlier; and
    • (3) the processing fee..

A party obtaining knowledge of an application pending in the Office may file a protest against the application and may therein call attention to any facts within protestor’s knowledge which, in the protestor’s opinion, would make the grant of a patent on the application improper.

  • The party should include with the protest whatever information the party is aware of that would facilitate identification of the application and matching the protest with the application.
  • Where the protest specifically identifies the application, and is otherwise compliant, the protest will be considered by the Office if it is matched with the application in time to permit review by the examiner during prosecution.

A protestor does not, by the mere filing of a protest, obtain the "right" to argue the protest before the Office.

  • Active participation by a protestor ends with the filing of the protest, and no further submission on behalf of the protestor will be considered, unless the submission is made pursuant to 37 CFR 1.291(c)(5).

1901.01 Who Can Protest

Any member of the public, including private persons, corporate entities, and government agencies, may file a protest.

  • A protest may be filed by an attorney or other representative on behalf of an unnamed real party in interest. 
  • 37 CFR 1.291 does not require that the real party in interest be identified.

A protestor may not know if a protest has already been filed (by another), and may have no way of checking (e.g., a non-reissue application for which the file wrapper is not publicly available).

  • Should the protest (inadvertently or otherwise) fail to include the statement that the protest is the first protest by the real party in interest filing the current protest and fail to comply with 37 CFR 1.291(c)(5), if, in fact, the protest is the first filed protest in an application, it will be considered where all other conditions are met.

1901.02 Information Which Can Be Relied on in Protest

Any information which, in the protestor’s opinion, would make the grant of a patent improper can be relied on in a protest.

The following are examples of the kinds of information, in addition to prior art documents, which can be relied on in a protest:

  • (A) Information demonstrating that the invention was publicly known or used by others and is barred from patenting under 35 U.S.C. 102(a)(1) and/or 103 or pre-AIA 35 U.S.C. 102(a) and/or 103.
  • (B) Information that the invention was in public use or on sale and is barred from patenting under 35 U.S.C. 102(a)(1) or pre-AIA 35 U.S.C. 102(b).
  • (C) Information that the inventor "has abandoned the invention" or "did not himself invent the subject matter sought to be patented"
  • (D) Information relating to inventorship under pre-AIA 35 U.S.C. 102(g).
  • (E) Information relating to compliance with 35 U.S.C. 112.
  • (F) Any other information demonstrating that the application lacks compliance with the statutory requirements for patentability.
  • (G) Information indicating "fraud" or "violation of the duty of disclosure" under 37 CFR 1.56 may be the subject of a protest. Protests raising fraud or other inequitable conduct issues will be entered in the application file, generally without comment on those issues. 

Different forms of evidence may accompany, or be submitted as a part of, a protest.

  • Conventional prior art documents such as patents and publications are the most common form of evidence.
  • However, other forms of evidence can likewise be submitted. Some representative examples of other forms of evidence are litigation-related materials such as complaints, answers, depositions, answers to interrogatories, exhibits, transcripts of hearings or trials, court orders and opinions, stipulations of the parties, etc.
  • Where only a portion of the litigation-related materials is relevant to the protest, protestors are encouraged to submit only the relevant portion(s).

While the forms in which evidence and/or information may be submitted with, or as a part of, a protest are not limited, protestors must recognize that such submissions may encounter problems such as establishing authenticity and/or the probative value to apply to the evidence.

Information which is subject to a court-imposed protective or secrecy order may be submitted with, or as a part of, a protest.

1901.03 How Protest Is Submitted

A protest must be submitted in writing, must specifically identify the application to which the protest is directed by application number or serial number and filing date, and must include an information list of all documents, portions of documents, or other information submitted; a concise explanation of the relevance of each listed item; an English language translation of any non-English language document or other information identified in the information list; and be accompanied by a copy of each item in the information list except for U.S. patents and U.S. patent application publications.

Each protest should be clearly identified as a "PROTEST UNDER 37 CFR 1.291."

It is also important that any protest against a pending application specifically identify the application to which the protest is directed with the identification being as complete as possible.

If possible, the following information should be placed on the first page of the protest:

  • (A) Name of inventor(s)
  • (B) Name of applicant(s).
  • (C) Application number.
  • (D) Filing date of application.
  • (E) Title of invention.
  • (F) Art unit number (if known).
  • (G) Name of examiner to whom the application is assigned (if known).

In addition to the above information, if the protest includes exhibits or other attachments, these should also contain identifying information thereon in order to prevent them from becoming inadvertently separated and lost.

Any protest can be submitted by mail.

  • A protest must NOT be submitted electronically via EFS-Web.

Where a protest is directed to a reissue application for a patent which is involved in litigation, the outside envelope and the top right-hand portion of the protest should be conspicuously marked with the words "REISSUE LITIGATION."

I. A PROTEST SUBMISSION MUST BE COMPLETE

A protest must be complete and contain a copy of every document relied on by the protestor, whether the document is a prior art document, court litigation material, affidavit, or declaration, etc.

  • A protest not accompanied by a copy of each document relied on (except for U.S. patents and U.S. patent application publications) will not be entered.
  • A protestor will not be given an opportunity to supplement or complete any protest which is incomplete.

Even new protests which also argue Office actions or replies or any matter beyond the new issue should not be accepted. Improper protests will be returned to the protestor, or discarded, at the option of the Office. 

Every effort should be made by a protestor to serve a copy of the protest upon the attorney or agent of record or upon the applicant if no attorney or agent is of record.

If the protest filed in the Office does not, however, indicate service on applicant or applicant’s attorney or agent, and is not filed in duplicate, then the protest will not be entered.

  • If the protest is filed in duplicate and otherwise compliant, the Office will forward the protest to the correspondence address of record, and the application file should reflect that fact, either by a letter transmitting the protest or, if no transmittal letter is used, simply by an appropriate notation in the application file history.

1901.04 When Can the Protest Be Submitted

A protest is timely if

  • (1) filed prior to the date the application was published under 37 CFR 1.211 or the date a notice of allowance was given or mailed, whichever occurs first, or
  • (2) accompanied by written consent of the applicant and filed prior to the date a notice of allowance  was given or mailed in the application. Publication under the Patent Cooperation Treaty (PCT) by the World Intellectual Property Organization (WIPO) of an international application would not trigger the end of the 37 CFR 1.291(b) time period for submitting a protest in a national stage application.

As a practical matter, any protest should be submitted as soon as possible after the protestor becomes aware of the existence of the application to which the protest is to be directed. By submitting a protest early in the examination process, i.e., before the Office acts on the application if possible, the protestor ensures that the protest will be of the most benefit to the Office in its examination of the application.

  • A protest submitted on or after the date a notice of allowance was given or mailed will not be entered and will be discarded.

Where a protest of a reissue application is submitted after the 2-month period, no petition for entry of the protest is needed with respect to the protest being submitted after the 2 months, unless a final rejection has been issued or prosecution on the merits has been closed for the reissue application.

1901.05 Acknowledgment of Protest

A protestor in an original or reissue application will not receive any communications from the Office relating to the protest, or to the application, other than the return of a self-addressed postcard which protestor may include with the protest in order to receive an acknowledgment that the protest has been received by the Office. 

  • Where a self-addressed postcard is included with the protest, the Office will acknowledge receipt of the protest by return of the self-addressed postcard.
  • Thus, it is to be noted that the receipt of the self-addressed postcard from the Office is not an indication that the protest complies with 37 CFR 1.291.
I. APPLICATIONS AND STATUS THEREOF MAINTAINED IN CONFIDENCE

The postcard acknowledging receipt of a protest in other than a reissue application will not and must not indicate whether such application in fact exists or the status of any such application.

The Office will communicate with the applicant regarding any protest entered in an application file and may require the applicant to supply information, including replies to specific questions raised by the protest, in order for the Office to decide any issues raised thereby.

1901.06 Office Treatment of Protest

Office practice as defined in 37 CFR 1.291(a) gives recognition to the value of the written protests in avoiding the issuance of invalid patents.

  • However, the fact that one or more protests has been filed in an application, whether the application is an original application or a reissue application, does not relieve the examiner from conducting a normal examination on the merits, including the required search.
  • Evidence submitted in a protest will be considered on the same basis as other ex parte evidence. 
I. INITIAL REVIEW

Protests will not be automatically made of record in an application.

The Office has designated points of contact and established procedures for reviewing protests to determine if they are compliant with the relevant provisions before being made of record in an application.

  • These procedures permit compliant protests to be entered into the record of the application and made available to the examiner for consideration as early as possible.

If a compliant protest is filed in a reissue application and the reissue application is related to a patent involved in a pending interference or derivation proceeding, such application should be referred to the Office of Patent Legal Administration before the examiner considers the protest and acts on the application.

II. PERIOD FOR COMMENTS BY APPLICANT

If the Office’s initial review reveals that the protest is ready for consideration during the examination, the examiner may nevertheless consider it desirable, or necessary, to obtain applicant’s comments on the protest before further action. In such situations, the examiner will offer applicant an opportunity to file comments within a set period, usually 1 month, unless circumstances warrant a longer period.

III. EXAMINER MUST NOT COMMUNICATE WITH PROTESTOR

The examiner must not communicate with protestor in any way even if the protest is incomplete or the protestor inquires as to the status of any Office proceedings related to the protest.

  • In addition, the examiner will not consider a later submission by protestor, unless such submission complies with 37 CFR 1.291(c)(5).
  • Improper protests will be returned to the protestor, or discarded, at the option of the Office.
IV. EXAMINER TREATMENT OF AN ENTERED PROTEST

If the protest has been reviewed and entered into the record of the application in time to permit consideration by the examiner during prosecution, the examiner must consider

  • (A) each of the prior art or other documents submitted in conformance with 37 CFR 1.291(c) and any discussion of such documents in the protest, and
  • (B) any non-prior art issue(s) raised by the protest that are appropriate for consideration by the primary examiner, and the information supplied as to the same.

V. PROTEST FILED ON OR AFTER PUBLICATION OF THE APPLICATIONA.Without the Written Consent of Applicant

If a protest is submitted on or after the date the application is published and is not accompanied by the written consent of the applicant, it will not be entered in the application file.

B. With the Written Consent of Applicant

35 U.S.C. 122(c) permits the filing of a protest in an application after the application has been published if there is express written consent of the applicant.

In order to file a protest after publication of a patent application, 37 CFR 1.291(b)(1) requires that the protest be accompanied by the written consent of the applicant and be filed prior to the date the notice of allowance is given or mailed.

VI. CONSIDERATION OF PROTESTOR’S ARGUMENTS

In view of the value of written protests, the examiner must give careful consideration to the points and arguments made on behalf of the protestor.

VII. RESULTS OF CONSIDERATION REPORTED TO TECHNOLOGY CENTER (TC) DIRECTOR

After the examiner has considered the protest, the examiner will report the results of such consideration to the TC Director.

1901.07 Protestor Participation

37 CFR 1.291 does not permit protestor, or any other member of the public, to contact or receive information from the Office as to the disposition or status of the protest, or the application to which it is directed, or to participate in any Office proceedings relating to the protest.

  • The Office does not serve copies of Office actions or other documents mailed by the Office on protestors, and does not require applicants to serve copies of papers filed with the Office on protestors.
  • Furthermore, a protestor is not permitted to participate in interviews, appeal a decision by the examiner adverse to the protestor to the Patent Trial and Appeal Board, or participate in an appeal by applicant.


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