MPEP 2812.03
Corrected Request

Ninth Edition of the MPEP, Revision 07.2022, Last Revised in February 2023

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2812.03    Corrected Request [R-11.2013]

The patent owner has one opportunity to file a corrected request in response to a Notice of Noncompliant Supplemental Examination Request (37 CFR 1.610(d) ).

To be proper, a corrected request must properly address all of the defects set forth in the notice, and must otherwise comply with all of the requirements of 37 CFR 1.605, 1.610 and 1.615, and all other applicable rules. The corrected request must include all of the components that the patent owner intends to include as part of the request, such as, for example, the request itself, copies of each of the items of information, a copy of the patent for which supplemental examination is requested, any transmittal sheet, a submission in compliance with 37 CFR 3.73(c), etc.

The patent owner must submit a complete, corrected request that will replace the originally-filed request. In other words, the patent owner must not submit a "supplemental" or corrected portion of the request, because the Office intends to expunge the entire originally-filed request once a corrected request is received. For this reason, a corrected request must contain all of the required information without reliance on any defective originally-filed request.

If all applicable fees have already been paid, these fees do not have to be resubmitted with the corrected request. Also, as discussed previously, even if the request (either the originally-filed request or the corrected request) is determined to be defective, the Office has the discretion under 37 CFR 1.610(d) to grant a filing date. See MPEP § 2812.01. For example, if the Office determines that a corrected request only contains one or more defects of minor character, the Office may, in its sole discretion, enter the defective corrected request, correct the defect(s) sua sponte, and/or request a submission from the patent owner in order to correct the defect(s). As a specific example, if the defect in the corrected request is limited to the omission of a copy of the patent for which supplemental examination is requested, and the copy of the patent was submitted with the originally-filed request, the Office may exercise its option to sua sponte accept the original submission of the copy of the patent as part of the corrected request.

The corrected request may be submitted using the Office’s Web-based electronic filing system (EFS-Web) at, or, if filed in paper form, may be addressed to the Central Reexamination Unit (CRU), Attn: "Mail Stop Supplemental Examination". See MPEP § 2806. A corrected request must not be facsimile-transmitted. Any corrected request may be followed up by a telephone call to the Central Reexamination Unit at (571) 272-7705 to ensure receipt.

If a proper corrected request is timely filed, the filing date of the supplemental examination request will be the receipt date of the corrected request. The Office will mail a Notice of Supplemental Examination Request Filing Date to the patent owner. A copy of such a notice is provided in MPEP § 2812.01.