Prosecution Insights
Last updated: April 19, 2026

Examiner: ZHANG, KELING NMN

Tech Center 1700 • Art Units: 1732

This examiner grants 67% of resolved cases

Performance Statistics

66.7%
Allow Rate
+1.7% vs TC avg
238
Total Applications
+19.8%
Interview Lift
1246
Avg Prosecution Days
Based on 195 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
14.8%
§102 Novelty
49.3%
§103 Obviousness
26.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18054281 MOVING BED LIGNOCELLULOSIC BIOMASS CONVERSION WITH FLUID BED CATALYST REGENERATION Final Rejection CHEVRON U.S.A. INC.
18159863 HYDROPROCESSING METHOD INCLUDING NONADSORPTIVE CATALYST PARTICLES Final Rejection Saudi Arabian Oil Company
17968490 CARBON MONOXIDE AND HYDROCARBON OXIDATION CATALYST, A METHOD FOR PREPARING SAME, AND AN OXIDATION METHOD FOR CARBON MONOXIDE AND HYDROCARBON USING SAME Non-Final OA KIA CORPORATION
18635098 METHOD FOR PRODUCING ACTIVE MATERIAL Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18065034 PRODUCTION METHOD FOR GRAPHITE SHEET, AND POLYIMIDE FILM FOR GRAPHITE SHEET Final Rejection KANEKA CORPORATION
17943548 ENZYMATIC CONSTRUCTION MATERIAL Final Rejection Worcester Polytechnic Institute
17512792 METHODS AND REFORMING SYSTEMS FOR RE-DISPERSING PLATINUM ON REFORMING CATALYST Non-Final OA MARATHON PETROLEUM COMPANY LP
18547926 CARBON FILM Non-Final OA ZEON CORPORATION
18547653 METHOD FOR PRODUCING SECONDARY BATTERY MATERIAL FROM BLACK MASS Non-Final OA KEMCO
18014540 BRIGHT PIGMENT DISPERSION AND METHOD FOR FORMING MULTILAYER COATING FILM Non-Final OA KANSAI PAINT CO., LTD.
18026154 ZINC OXIDE PARTICLES, METHOD FOR PRODUCING ZINC OXIDE PARTICLES, AND RESIN COMPOSITION Non-Final OA DIC Corporation
18036958 FLUID CATALYTIC CRACKING ADDITIVE COMPOSITION FOR ENHANCED BUTYLENES SELECTIVITY OVER PROPYLENE Non-Final OA BASF CORPORATION
18035205 Chrome-Free Copper-Calcium Silicate Catalysis for Fatty Ester Hydrogenolysis/Hydrogenation Non-Final OA BASF CORPORATION
18547782 GYPSUM COMPOSITION FOR MOLD PRODUCTION Non-Final OA YOSHINO GYPSUM CO., LTD.
18100050 PEROVSKITE CATALYSTS AND USES THEREOF Non-Final OA Research Triangle Institute
17295516 Use of CO2 as Water Demand Reducer in Gypsum Stucco Rehydration Mortars Final Rejection Knauf Gips KG
18547231 METHOD FOR PRODUCING MANGANESE(II) SULFATE MONOHYDRATE FROM BY-PRODUCT OF ZINC REFINING PROCESS Non-Final OA KOREA ZINC CO., LTD.
18263661 ACTIVATION OF REDUCED AND PASSIVATED CATALYST Non-Final OA Johnson Matthey Davy Technologies Limited
17440471 SELECTIVE REDUCING CATALYST FOR DIESELS AND DIESEL EXHAUST GAS PURIFICATION APPARATUS Non-Final OA N.E. CHEMCAT CORPORATION
18253054 CATALYST FOR REGENERATING WORKING SOLUTION FOR SYNTHESIZING HYDROGEN PEROXIDE Non-Final OA HEESUNG CATALYSTS CORPORATION
18266553 METHOD FOR GENERATING HYDROGEN MOLECULES BY MEANS OF ENERGY RADIATION Non-Final OA BEIJING GUANGHE HYDROGEN ENERGY TECHNOLOGY CO., LTD.
18039798 DENTAL PRODUCT FOR FORMING AN ENDODONTIC CEMENT Non-Final OA PRODUITS DENTAIRES PIERRE ROLLAND
18323084 HIGHLY CRYSTALLIN, POROUS, HYDROPHILIC CATALYST FOR FUEL CELL, MANUFACTURING METHOD THEREOF, AND FUEL CELL USING SAME Non-Final OA KORENS RTX Co., Ltd.
17593958 SPHERICAL MAGNESIUM OXIDE, MANUFACTURING METHOD THEREOF, THERMAL CONDUCTIVE FILLER AND RESIN COMPOSITION Non-Final OA TATEHO CHEMICAL INDUSTRIES CO., LTD.
18075768 METHODS AND SYSTEMS FOR TREATMENT OF LIME TO FORM VATERITE Final Rejection Arelac, Inc.
18001513 OXYGEN REDUCTION CATALYST AND SELECTION METHOD THEREOF, LIQUID COMPOSITION OR ELECTRODE CONTAINING OXYGEN REDUCTION CATALYST, AND AIR BATTERY OR FUEL CELL PROVIDED WITH ELECTRODE Non-Final OA Azul Energy Inc.
17924479 A SYSTEM AND METHOD FOR PRODUCING HYDROGEN ON DEMAND Final Rejection ELEMENT 1 TECHNOLOGIES, LLC
17602201 SILICON OXIDE FILM, MATERIAL FOR GAS BARRIER FILM, AND METHOD FOR PRODUCING SILICON OXIDE FILM Non-Final OA SAGAMI CHEMICAL RESEARCH INSTITUTE
17125461 Potassium Boron-Containing Compositions and Their Preparation Non-Final OA U.S. Borax Inc.

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