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Guidance memorandum–Use of applicant admitted prior art in inter partes reviews (August 18, 2020)
This memorandum, issued under the Director’s authority to set forth binding agency guidance, provides the office’s interpretation of 35 U.S.C. § 311(b) that the basis for an inter partes review (IPR) must be a prior art patent or printed publication, and that statements regarding prior art in the challenged patent therefore cannot serve as the basis for instituting an IPR. Such statements, however, may provide evidence of the general knowledge possessed by a person of ordinary skill in the art, and may be used to support an obviousness argument in conjunction with one or more prior art patents or printed publications.
Learn more about PTAB resources and guidance on the USPTO website.
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