Prosecution Insights
Last updated: April 19, 2026

Examiner: PO, MING CHEUNG

Tech Center 1700 • Art Units: 1764 1771 1797

This examiner grants 38% of resolved cases

Performance Statistics

37.8%
Allow Rate
-27.2% vs TC avg
760
Total Applications
+14.0%
Interview Lift
1549
Avg Prosecution Days
Based on 696 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
5.1%
§102 Novelty
71.6%
§103 Obviousness
16.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18773287 INTERMEDIATE AND HYDROTREATED FUEL COMPOSITIONS FROM RENEWABLE LIPID FEEDSTOCKS Final Rejection CHEVRON U.S.A. INC.
18667043 SLURRY REACTOR SYSTEM FOR UPGRADING FEEDSTOCK Non-Final OA Chevron U.S.A. Inc.
18400459 RAW GAS QUALITY THROUGH HEAT TRANSFER Non-Final OA SAUDI ARABIAN OIL COMPANY
18326914 CONDENSATE STABILIZATION Non-Final OA SAUDI ARABIAN OIL COMPANY
17946430 METHOD OF PRODUCING A FUEL OIL INCLUDING PYROLYSIS PRODUCTS GENERATED FROM MIXED WASTE PLASTICS Final Rejection Saudi Arabian Oil Company
18644774 Systems and Methods for Quenching and Removal of Solids from a Hydrocarbon Gas Reaction Product Non-Final OA ExxonMobil Technology and Engineering Company
17814953 NITROGEN PURIFICATION FROM HYDROCARBON CONTAINING GAS USING ZEOLITE ITQ-55 Final Rejection ExxonMobil Technology and Engineering Company
18551872 USEFUL HYDROCARBON PRODUCTION METHOD AND USEFUL HYDROCARBON PRODUCTION DEVICE Non-Final OA FURUKAWA ELECTRIC CO., LTD.
18254036 UTILIZING AIR WASTE HEAT BOILER STACK GASES FROM DEHYDROGENATION UNITS Non-Final OA SABIC GLOBAL TECHNOLOGIES B.V.
18676978 HALOALKYL ALKOXYMETHYL ETHER COMPOUND, AND PROCESS FOR PREPARING 4,6,8,10,16-PENTAMETHYLDOCOSANE THEREFROM AND FOR PREPARING SYNTHETIC INTERMEDIATE THEREFOR Non-Final OA Shin-Etsu Chemical Co., Ltd.
17408798 METHODS OF PASSIVATING FUEL MATERIALS FOR USE IN SOLID PROPELLANTS, AND RELATED SOLID FUELS, RAMJET ENGINES, AND METHODS Final Rejection Northrop Grumman Systems Corporation
18640458 Method for Preparing Sustainable Aviation Fuel Non-Final OA SK Innovation Co., Ltd.
18645427 METHOD FOR STORING AND TRANSPORTING HYDRATE WITH HIGH NATURAL GAS STORAGE CAPACITY Non-Final OA GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCES
18742761 PROCESS FOR PRODUCING RENEWABLE PRODUCT STREAMS Non-Final OA UOP LLC
18517268 INTEGRATED STEAM CRACKING AND HYDROGEN PRODUCTION PROCESS Final Rejection UOP LLC
18724020 A METHOD FOR PRODUCING RENEWABLE AVIATION FUEL Final Rejection NESTE OYJ
18566162 A STORAGE TANK SYSTEM AND A METHOD FOR REDUCING UNWANTED GAS FORMATION Final Rejection Neste Oyj
18251449 Process for manufacturing bio-based hydrocarbons Non-Final OA Neste Oyj
18720522 PROCESS FOR RECOVERING MERCAPTANS, WITH SPECIFIC NI/NIO RATIO AND TEMPERATURE SELECTION Non-Final OA IFP ENERGIES NOUVELLES
18636273 METHOD AND SYSTEM FOR PRODUCING REFINED HYDROCARBONS FROM WASTE PLASTICS Non-Final OA SK GEO CENTRIC CO., LTD.
18629957 METHOD AND SYSTEM FOR PRODUCING REFINED HYDROCARBONS FROM WASTE PLASTICS Non-Final OA SK GEO CENTRIC CO., LTD.
18248965 Production of Alkylaromatic Compounds Non-Final OA ExxonMobil Chemical Patents Inc.
18703674 REACTION APPARATUS AND PRODUCTION PROCESS FOR OLEFIN PRODUCTION USING DIRECT CONVERSION OF METHANE Non-Final OA SOGANG UNIVERSITY RESEARCH & BUSINESS DEVELOPMENT FOUNDATION
18693527 PROCESS FOR MANUFACTURING A MONOCYCLIC AROMATIC COMPOUND Non-Final OA Koch Technology Solutions, LLC
18521002 PROCESS AND SYSTEM FOR FEEDING SOLID HYDROCARBONACEOUS MATERIALS TO BUBBLING FLUID BED REACTORS Non-Final OA Anellotech, Inc.
17982817 METHOD OF PRODUCING A DRAG REDUCER Final Rejection IRIS TECH, INC.
18445119 PROCESS FOR PRODUCTION OF SYNGAS AND FUELS FROM CARBON DIOXIDE USING OXYFUEL COMBUSTION Non-Final OA Infinium Technology, LLC
17714543 METHOD AND APPARATUS FOR PRODUCING BIOFUEL Final Rejection MURA TECHNOLOGY LIMITED
17400692 PERPETUAL CANDLE PRODUCT IMPLEMENTING A WICK AND OIL BURNING MECHANISM TO ALLOW FOR CONTINUED BURNING WITHOUT AFFECTING THE DESIGN FEATURE OF THE CANDLE PRODUCT Final Rejection WE*HAVE*SOLUTIONS
16639578 SULFUR MANAGEMENT METHOD Final Rejection OXY USA INC.

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