2210 Request for Ex Parte Reexamination
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Any person at any time may file a request for reexamination by the Office of any claim of a patent on the basis of any prior art cited under the provisions of section 301. The request must be in writing and must be accompanied by payment of a reexamination fee established by the Director pursuant to the provisions of section 41. The request must set forth the pertinency and manner of applying cited prior art to every claim for which reexamination is requested. Unless the requesting person is the owner of the patent, the Director promptly will send a copy of the request to the owner of record of the patent.
(a) Any person may, at any time during the period of enforceability of a patent, file a request for an ex parte reexamination by the Office of any claim of the patent on the basis of prior art patents or printed publications cited under § 1.501, unless prohibited by 35 U.S.C. 315(e)(1) or 35 U.S.C. 325(e)(1). The request must be accompanied by the fee for requesting reexamination set in § 1.20(c)(1).
(b) Any request for reexamination must include the following parts:
(1) A statement pointing out each substantial new question of patentability based on prior patents and printed publications.
(2) An identification of every claim for which reexamination is requested, and a detailed explanation of the pertinency and manner of applying the cited prior art to every claim for which reexamination is requested. For each statement of the patent owner and accompanying information submitted pursuant to § 1.501(a)(2) which is relied upon in the detailed explanation, the request must explain how that statement is being used to determine the proper meaning of a patent claim in connection with the prior art applied to that claim and how each relevant claim is being interpreted. If appropriate the party requesting reexamination may also point out how claims distinguish over cited prior art.
(3) A copy of every patent or printed publication relied upon or referred to in paragraph (b)(1) and (2) of this section accompanied by an English language translation of all the necessary and pertinent parts of any non-English language patent or printed publication.
(4) A copy of the entire patent including the front face, drawings, and specification/claims (in double column format) for which reexamination is requested, and a copy of any disclaimer, certificate of correction, or reexamination certificate issued in the patent. All copies must have each page plainly written on only one side of a sheet of paper.
(5) A certification that a copy of the request filed by a person other than the patent owner has been served in its entirety on the patent owner at the address as provided for in § 1.33(c). The name and address of the party served must be indicated. If service was not possible, a duplicate copy must be supplied to the Office.
(6) A certification by the third party requester that the statutory estoppel provisions of 35 U.S.C. 315(e)(1) or 35 U.S.C. 325(e)(1) do not prohibit the requester from filing the ex parte reexamination request.
(c) If the request does not include the fee for requesting ex parte reexamination required by paragraph (a) of this section and meet all the requirements by paragraph (b) of this section, then the person identified as requesting reexamination will be so notified and will generally be given an opportunity to complete the request within a specified time. Failure to comply with the notice will result in the ex parte reexamination request not being granted a filing date, and will result in placement of the request in the patent file as a citation if it complies with the requirements of § 1.501.
(d) The filing date of the request for ex parte reexamination is the date on which the request satisfies all the requirements of this section.
(e) A request filed by the patent owner may include a proposed amendment in accordance with § 1.530.
(f) If a request is filed by an attorney or agent identifying another party on whose behalf the request is being filed, the attorney or agent must have a power of attorney from that party or be acting in a representative capacity pursuant to § 1.34.
The estoppel provisions of AIA 35 U.S.C. 315(e)(1) or 35 U.S.C. 325(e)(1) are based on inter partes review and post grant review, respectively, and they only prohibit the filing of a subsequent request for ex parte reexamination, once estoppel attaches; there is no estoppel as to the Office maintaining an existing ex parte reexamination proceeding.
The request must include the elements set forth in 37 CFR 1.510(b) and must be accompanied by the fee.
- No attempt will be made to maintain a requester’s name in confidence.
After the request for reexamination, including the entire fee for requesting reexamination, is received in the Office, no abandonment, withdrawal, or striking of the request is possible, regardless of who requests the same.
- In some limited circumstances, such as after a final court decision where all of the claims are finally held invalid, a reexamination order may be vacated if the decision was rendered prior to the order, and the reexamination may be terminated if the decision was rendered subsequent to the order.
2211 Time for Requesting Ex Parte Reexamination
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The patent expiration date for a utility patent, for example, is determined by taking into account the term of the patent, whether maintenance fees have been paid for the patent, whether any disclaimer was filed as to the patent to shorten its term, any patent term extensions or adjustments for delays within the Office, and any patent term extensions available for premarket regulatory review. Any
- In addition, if litigation is instituted within the period of the statute of limitations, requests for reexamination may be filed after the statute of limitations has expired, as long as the patent is still enforceable.
2212 Persons Who May File a Request for Ex Parte Reexamination
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Section Frequency Chart
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(a) Any person may, at any time during the period of enforceability of a patent, file a request for an ex parte reexamination by the Office of any claim of the patent on the basis of prior art patents or printed publications cited under § 1.501, unless prohibited by 35 U.S.C. 315(e)(1) or 35 U.S.C. 325(e)(1). The request must be accompanied by the fee for requesting reexamination set in § 1.20(c)(1).
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“Any person” may file a request for ex parte reexamination of a patent, unless prohibited by AIA 35 U.S.C. 315(e)(1) or 35 U.S.C. 325(e)(1).
Accordingly, there are no types of “persons” who are excluded from being able to seek reexamination.
- Corporations and/or governmental entities are included within the scope of the term “any person.”
- The only “person” who is barred from filing a request for ex parte reexamination of a patent is one who is barred from doing so by the estoppel provisions of AIA 35 U.S.C. 315(e)(1) or 35 U.S.C. 325(e)(1) based on inter partes review and post grant review, respectively, once the estoppel attaches.
The patent owner can ask for reexamination which will be limited to an ex parte consideration of prior art patents or printed publications.
- If the patent owner wishes to have a wider consideration of issues by the Office, including matters such as prior public use or on sale, the patent owner may file a reissue application.
2212.01 Inquiries from Persons Other Than the Patent Owner
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