Prosecution Insights
Last updated: April 19, 2026

Examiner: BRANCH, CATHERINE S

Tech Center 1700 • Art Units: 1763

This examiner grants 85% of resolved cases

Performance Statistics

85.3%
Allow Rate
+20.3% vs TC avg
968
Total Applications
+3.6%
Interview Lift
921
Avg Prosecution Days
Based on 941 resolved cases, 2023–2026

Rejection Statute Breakdown

1.0%
§101 Eligibility
21.0%
§102 Novelty
40.3%
§103 Obviousness
29.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18248831 STORAGE METHOD AND USAGE METHOD FOR POLYCARBOXYLIC ACID-BASED POLYMER SOLUTION Non-Final OA NIPPON SHOKUBAI CO., LTD.
18277992 FILM MATERIAL AND LAMINATED MATERIAL Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18036229 CURABLE COMPOSITION AND ABRASIVE ARTICLES MADE USING THE SAME Non-Final OA 3M INNOVATIVE PROPERTIES COMPANY
17796119 AQUEOUS DISPERSION OF ACRYLATE-SILOXANE COPOLYMER PARTICLES Non-Final OA Rohm and Haas Company
17865049 METHOD FOR PRODUCING LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE, COMPOSITION, AND LOW MOLECULAR WEIGHT POLYTETRAFLUOROEHTYLENE Non-Final OA OSAKA UNIVERSITY
18250245 Non-Aromatic Hydrocarbon Soluble Olefin Polymerization Catalysts and Use Thereof Final Rejection ExxonMobil Chemical Patents Inc.
18044369 POLYPROPYLENE POLYMER HAVING ULTRA-HIGH MELT FLOW RATE Final Rejection W. R. Grace & Co.-Conn.
18028344 Novel Chelate Resins Non-Final OA LANXESS Deutschland GmbH
17997143 CATALYST COMPONENT FOR OLEFIN POLYMERIZATION OR COPOLYMERIZATION AND PREPARATION METHOD THEREFOR, AND APPLICATION Non-Final OA BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
18250551 SOLID COMPONENT FOR PREPARING OLEFIN POLYMERIZATION CATALYST, AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF Non-Final OA BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
18249096 MAGNESIUM-BASED SOLID AND CATALYST COMPONENT HAVING MULTIMODAL PORE DISTRIBUTION, AND PREPARATION METHODS THEREFOR Non-Final OA BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

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