Prosecution Insights
Last updated: April 19, 2026

Examiner: PETRASH, HILARY ANN

Tech Center 1600 • Art Units: 1641 1644

This examiner grants 64% of resolved cases

Performance Statistics

63.6%
Allow Rate
+3.6% vs TC avg
87
Total Applications
+49.7%
Interview Lift
1073
Avg Prosecution Days
Based on 55 resolved cases, 2023–2026

Rejection Statute Breakdown

3.8%
§101 Eligibility
13.7%
§102 Novelty
23.7%
§103 Obviousness
32.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17289613 NANOBODY-GLYCAN MODIFYING ENZYME FUSION PROTEINS AND USES THEREOF Non-Final OA President and Fellows of Harvard College
17491813 EVALUATION AND TREATMENT OF BRADYKININ-MEDIATED DISORDERS Non-Final OA Takeda Pharmaceutical Company Limited
17422591 COMPOSITIONS AND METHODS FOR MODULATING CELLULAR INTERNALIZATION Final Rejection The Regents of the University of California
17264386 DOSING REGIMEN FOR BCMA-CD3 BISPECIFIC ANTIBODIES Final Rejection AMGEN INC.
17258741 PREVENTION OR TREATMENT METHOD FOR PERIPHERAL NEUROPATHY OR PAIN ACCOMPANYING DISEASE IN WHICH PERIPHERAL NEUROPATHY OR ASTROCYTE DISORDER IS RECOGNIZED Non-Final OA MITSUBISHI TANABE PHARMA CORPORATION
18266993 CAR-INKT WITH HIGH AMPLIFICATION, SURVIVAL CAPACITY AND TUMOR KILLING EFFECT AND USE THEREOF Non-Final OA Beijing Gene Key Life Technology Co., Ltd.
18020447 COMPOSITIONS AND METHODS FOR TREATING AUTOIMMUNE DISEASES AND CANCERS BY TARGETING IGSF8 Non-Final OA Shanghai XunBaiHui Biotechnology Co., LTD.
17311193 BRAIN TARGETED DRUG DELIVERY METHOD VIA SYNDECAN-3 Non-Final OA PHARMACOIDEA Kft
18015319 ANTI-TIGIT ANTIBODY AND METHODS OF USE THEREOF Non-Final OA CRYSTAL BIOSCIENCE INC.
17273784 FORMULATIONS OF IMMUNOGLOBULIN A Non-Final OA ExpressTec LLC
17681855 Chimeric Antigen Receptor Targeting CD22 and CD19 and Application thereof Final Rejection Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences
17624467 ANTIGEN-BINDING PROTEIN CONSTRUCTS AND USES THEREOF Final Rejection Mythic Therapeutics, Inc.
17290957 BISPECIFIC ANTIBODY, PREPARATION METHOD THEREOF AND APPLICATION THEREOF Final Rejection EXCYTE LLC
17278217 SYNTHETIC BINDING AGENTS FOR LIMITING PERMEATION THROUGH MUCUS Non-Final OA MUCOMMUNE, LLC

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