Prosecution Insights
Last updated: August 18, 2026

Examiner: EPSTEIN, TODD MATTHEW

Tech Center 1600 • Art Units: 1652 1699

This examiner grants 61% of resolved cases

Performance Statistics

61.0%
Allow Rate
+1.0% vs TC avg
596
Total Applications
+44.2%
Interview Lift
1006
Avg Prosecution Days
Based on 561 resolved cases, 2023–2026

Rejection Statute Breakdown

7.6%
§101 Eligibility
14.5%
§102 Novelty
31.9%
§103 Obviousness
31.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17796184 A CAS9-PDBD BASE EDITOR PLATFORM WITH IMPROVED TARGETING RANGE AND SPECIFICITY Non-Final OA UNIVERSITY OF MASSACHUSETTS
19532377 EICOSAPENTAENOIC ACID-PRODUCING MICROORGANISMS, FATTY ACID COMPOSITIONS, AND METHODS OF MAKING AND U Non-Final OA DSM IP Assets B.V.
18591161 FABRIC AND HOME CARE PRODUCT COMPRISING CATIONIC SOIL RELEASE POLYMER AND LIPASE ENZYME Non-Final OA The Procter & Gamble Company
18278735 Tropane Alkaloid Transporters and Methods of Making Tropane Alkaloids Using the Same Non-Final OA THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
18847615 L-AMINO ACID-PRODUCING MICROORGANISM HAVING WEAKENED CARBAMOYL PHOSPHATE SYNTHASE ACTIVITY, AND L-AMINO ACID PRODUCTION METHOD USING SAME Non-Final OA CJ CHEILJEDANG CORPORATION
18869988 IMPROVED BIOTECHNOLOGICAL METHOD FOR PRODUCING GUANIDINO ACETIC ACID (GAA) BY USING NADH-DEPENDENT DEHYDROGENASES Non-Final OA Evonik Operations GmbH
17042788 METHOD OF OBTAINING A MICROBIAL OIL AND A METHOD OF REDUCING EMULSION BY MAINTAINING A LOW CONCENTRATION OF CARBOHYDRATE Non-Final OA Evonik Operations GmbH
18252131 POLY(3-HYDROXYALKANOATE) PRODUCTION METHOD Final Rejection KANEKA CORPORATION
17769890 Compositions for Replacing Chemical Surfactants Non-Final OA Locus Solutions IPCo, LLC
18815248 METHOD TO PRODUCE ENANTIOMERS OF UNDECAVERTOL Non-Final OA GIVAUDAN SA
18711011 Lactose And Human Milk Oligosaccharides (HMOS) Production In Cells Non-Final OA AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
18691525 BIOCHEMICAL PATHWAY FOR THE PRODUCTION OF TULIPALIN A VIA ITACONIC ACID Non-Final OA MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V.

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