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Benedict Hanrahan

is a patent attorney with demonstrated experience in the chemical and biomedical fields. He is skilled at drafting and prosecuting patent applications involving chemical, biomedical, and electro-mechanical technologies. As he has previously served as a patent examiner with negotiating authority, Ben has conducted several inventor and examiner interviews and provided instruction for foreign associates. Ben helped a small client develop a global patent portfolio strategy and managed the foreign prosecution.

For more information or to contact Ben, please visit his Firm Profile Page.

Recent Articles by Benedict Hanrahan

Practice Tips Following USPTO Guidance on Applicant Admitted Prior Art

On August 18, 2020, the USPTO issued a guidance memorandum on the treatment of applicant statements in the challenged patent in inter partes review (IPR) proceedings under Section 311, which addresses the use of applicant statements as Applicant Admitted Prior Art (AAPA). When an IPR is filed, the basis of that IPR must be prior art consisting of either a patent or printed publication. An interesting situation arises when the disclosure of the challenged patent itself admits or allegedly admits certain material as prior art. This situation has presented itself to the Patent Trial and Appeal Board (Board) on a number of occasions and has received inconsistent treatment. The purpose of this memorandum is to clarify that an applicant’s own statements in the challenged patent cannot serve as the basis for instituting an IPR. But the use of AAPA is still available as evidence the Board may consider for more limited purposes.