Prosecution Insights
Last updated: August 18, 2026

Examiner: KOROTCHKINA, LIOUBOV G

Tech Center 1700 • Art Units: 1653 1796

This examiner grants 28% of resolved cases

Performance Statistics

27.6%
Allow Rate
-37.4% vs TC avg
112
Total Applications
+64.7%
Interview Lift
1357
Avg Prosecution Days
Based on 58 resolved cases, 2023–2026

Rejection Statute Breakdown

4.1%
§101 Eligibility
10.9%
§102 Novelty
45.1%
§103 Obviousness
29.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18287742 MATERIALS AND METHODS FOR IMPROVED PHOSPHOTRANSFERASES Non-Final OA Janssen Biotech, Inc.
18360318 CELL CULTURE SUBSTRATE AND MANUFACTURING METHOD THEREOF Non-Final OA RICOH COMPANY, LTD.
17605919 BETA-AMYLASE VARIANTS Non-Final OA BASF SE
16484869 Method of Making Proteins with Non-Standard Amino Acids Non-Final OA President and Fellows of Harvard College
18185820 METHODS FOR THE BIOCATALYTIC PRODUCTION OF ACETALDEHYDE Non-Final OA University of Kansas
17126348 DRYING FORMULATION FOR HYDROGEL MICROCARRIERS Non-Final OA CORNING INCORPORATED
18708179 NOVEL STRAIN OF SCHIZOCHYTRIUM SP. WITH EASY INTRACELLULAR OIL EXTRACTION AND A METHOD FOR PRODUCING OIL CONTAINING OMEGA-3 USING SAME Non-Final OA CJ CheilJedang Corporation
17617466 COSMETIC COMPOSITION COMPRISING A COMBINATION OF AT LEAST ONE OLIGOSACCHARIDE AND/OR POLYSACCHARIDE COMBINED WITH A MANNOSE MONOSACCHARIDE, AND USE THEREOF IN MAINTAINING THE BALANCE OF THE BACTERIAL SKIN FLORA Non-Final OA L'OREAL
17617567 GEL COMPOSITION COMPRISING VIABLE MICROORGANISMS Final Rejection L'Oreal S.A.
17612816 COMPOSITION FOR TREATMENT, ALLEVIATION OR PROPHYLAXIS OF ACNE Final Rejection L'Oreal S.A.
17754049 METHOD FOR SCREENING SECRETION-PRODUCING CELLS AND KIT FOR SCREENING SECRETION-PRODUCING CELLS Final Rejection Tokyo Ohka Kogyo Co., Ltd.
18001117 PROCESS FOR SYNTHESIS OF POLY-GAMMA-GLUTAMIC ACID Non-Final OA COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
17793009 4-UREIDO-5-CARBOXYL-IMIDAZOLE-AMIDE HYDROLASE AND USE THEREOF Non-Final OA TIANJIN UNIVERSITY

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