Prosecution Insights
Last updated: April 19, 2026

Examiner: NGUYEN, CAM N

Tech Center 1700 • Art Units: 1736 1793

This examiner grants 85% of resolved cases

Performance Statistics

84.9%
Allow Rate
+19.9% vs TC avg
1298
Total Applications
+11.9%
Interview Lift
973
Avg Prosecution Days
Based on 1260 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
31.0%
§102 Novelty
30.5%
§103 Obviousness
27.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18268519 PRODUCTION METHOD FOR TUNGSTEN OXIDE COMPOSITION Non-Final OA NIPPON SHOKUBAI CO., LTD.
18492228 METHODS OF PREPARING ALUMINUM OXIDE Non-Final OA Saudi Arabian Oil Company
18053848 LEACHING AGENT COMPOSITION AND METHOD OF REMOVING METAL FROM CATALYST MATERIAL Non-Final OA Saudi Arabian Oil Company
17928594 ACTIVATED CARBON AND METHOD FOR MANUFACTURING THE SAME Non-Final OA LG Energy Solution, Ltd.
18266678 NIKEL IRON-BASED CATALYST DOPED WITH METAL HAVING ELECTRONEGATIVITY LOWER THAN THAT OF NI AND FE, MANUFACTURING METHOD THEREOF, AND ALKALINE WATER ELECTROLYSIS SYSTEM Non-Final OA POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION
18259785 HYDROGENATION CATALYST WITH IMPROVED SULFUR RESISTANCE AND METHOD FOR PRODUCING SAME Non-Final OA Hanwha Solutions Corporation
18278667 Hexagonal Boron Nitride Aggregated Particles, Hexagonal Boron Nitride Powder, Resin Composition, and Resin Sheet Non-Final OA Tokuyama Corporation
18346388 GERMANIUM EXTRACTION FROM ELECTRONIC WASTE Non-Final OA Arizona Board of Regents on Behalf of the University of Arizona
18269032 ZIRCONIA GRANULE, GREEN COMPACT, AND METHODS OF PRODUCTION THEREOF Non-Final OA Kuraray Noritake Dental Inc.
18324791 MIXED METAL OXIDE INCLUDING MAGNESIUM AND ZINC Non-Final OA IMEC VZW
18268992 COMPLEX OXIDE AND METHOD OF PRODUCING THE SAME Non-Final OA MITSUI MINING & SMELTING CO., LTD.
18466188 PRODUCTION METHOD FOR AN SIC VOLUME MONOCRYSTAL OF INHOMOGENEOUS SCREW DISLOCATION DISTRIBUTION AND SIC SUBSTRATE Non-Final OA SiCrystal GmbH
18282347 SILICA POWDER AND PRODUCTION METHOD THEREFOR Non-Final OA DENKA COMPANY LIMITED
18355016 EXHAUST GAS-PURIFYING CATALYST Non-Final OA CATALER CORPORATION
18256398 CATALYTICALLY ACTIVE PARTICLE FILTER HAVING A HIGH DEGREE OF FILTERING EFFICIENCY Non-Final OA UMICORE AG & CO. KG
18225373 METHOD OF MANUFACTURING INORGANIC ION EXCHANGER FOR SELECTIVE EXTRACTION OF LITHIUM FROM LITHIUM-CONTAINING NATURAL AND TECHNOLOGICAL BRINES Non-Final OA XTRALIT, LTD
18221361 Method for High-Value Application of PTA Residue High-Concentration Bromine-Containing Wastewater to Preparation of Cuprous Bromide Non-Final OA Jiangsu University of Technology
18270791 METHOD FOR THE PRODUCTION OF LITHIUM HYDROXIDE (LIOH) DIRECTLY FROM LITHIUM CHLORIDE (LICI), WITHOUT THE NEED FOR AN INTERMEDIATE PRODUCTION OF LITHIUM CARBONATE OR SIMILAR Non-Final OA SOCIEDAD QUIMICA Y MINERA DE CHILE S.A.
18266268 Method and Device for Producing a SiC Solid Material Non-Final OA Zadient Technologies SAS
18255495 METHOD FOR PRODUCING HIGH PURITY AND HIGH SPECIFIC ACTIVITY RADIONUCLIDES Non-Final OA ORGANISATION EUROPEENNE POUR LA RECHERCHE NUCLEAIRE
18255561 PYROLYTIC EXTRACTION OF HYDROCHLORIC ACID FROM MAGNESIUM SALT MIXTURES, ESPECIALLY BITTERNS Non-Final OA LUNA INNOVATIONS INCORPORATED
17911037 COMPOSITIONS CONTAINING ZIRCONIUM AND CERIUM AND METHODS FOR PREPARING SAME USING OXALIC ACID AND SUPERCRITICAL DRYING Non-Final OA Neo Performance Materials (Singapore) Pte. Ltd.
18003779 METHOD OF IMPROVING AQUEOUS DISPERSIBILITY OF CONDUCTIVE CARBON POWDER, AND METHOD OF PREPARING COLLOID SOLUTION OF CONDUCTIVE CARBON POWDER Final Rejection KOREA INSTITUTE OF FUSION ENERGY
17802797 Method and device for producing a product containing amorphous silica and amorphous carbon Non-Final OA Innorom IV Holding Innovation and Ventures LTD.

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