Prosecution Insights
Last updated: April 19, 2026

Examiner: LEUNG, JENNIFER A

Tech Center 1700 • Art Units: 1692 1736 1774 1797

This examiner grants 62% of resolved cases

Performance Statistics

62.3%
Allow Rate
-2.7% vs TC avg
870
Total Applications
+12.5%
Interview Lift
1255
Avg Prosecution Days
Based on 825 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
19.7%
§102 Novelty
41.5%
§103 Obviousness
28.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19347959 SYSTEMS AND METHODS FOR SUPPLYING GASEOUS AMMONIA TO SERIALLY-CONNECTED AMMONIA CRACKING UNITS Non-Final OA First Ammonia Motors, Inc.
18026410 System For Transferring Reaction Solution Non-Final OA LG Chem, Ltd.
18018091 Reactor Final Rejection LG Chem, Ltd.
19227709 METHANOL PRODUCTION FROM METHANE UTILIZING A SUPPORTED CHROMIUM CATALYST Final Rejection Chevron Phillips Chemical Company LP
17127444 THERMALLY DRIVEN NITROGEN AND AMMONIA PRODUCTION Final Rejection Arizona Board of Regents on behalf of Arizona State University
17874631 DEHYDROGENATION REACTION APPARATUS AND CONTROL METHOD THEREOF Final Rejection KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
17913593 HYDROGEN SUPPLY SYSTEM Non-Final OA ENEOS CORPORATION
18488511 BUTTON CELL Non-Final OA Samsung SDI Co., Ltd.
18127785 METHODS AND APPARATUS FOR CHAMBER LID COOLING Non-Final OA ASM IP Holding B.V.
18850970 UREA PLANT WITH VALVE; UREA PRODUCTION PROCESS; USE AND METHOD Final Rejection STAMICARBON B.V.
17906928 METHOD AND PRODUCTION PLANT FOR PRODUCING NITRIC ACID Final Rejection Messer SE & Co. KGaA
17484744 MEASUREMENT APPARATUS FOR MEASURING AXIAL TEMPERATURE PROFILES IN A REACTOR TUBE Final Rejection L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
17925744 REACTION SYSTEM, METHOD FOR COLLECTING SOLID CARBON, METHOD FOR PRODUCING GAS CONTAINING HYDROGEN, CATALYST SET, AND CATALYST FOR SOLID CARBON COLLECTION Non-Final OA NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITY
17624518 A REACTOR FOR THE SYNTHESIS OF UREA Non-Final OA Casale SA
17717722 SURFACE DISINFECTION AND VISIBLE LIGHT SYSTEM AND METHOD FOR USING SAME Non-Final OA Safran Cabin Inc.
18040370 IMPROVEMENTS IN OR RELATING TO THERMOCOUPLES FOR TUBULAR REACTORS Non-Final OA JOHNSON MATTHEY DAVY TECHNOLOGIES LIMITED
18037843 REFORMING REACTOR COMPRISING REFORMER TUBES WITH ENLARGED OUTER SURFACE AREA AND STRUCTURED CATALYST Non-Final OA L'Air Liguide Société Anonyme pour I'Etude et I'Exploitation des Procédés Georges Claude
17916379 Reactor System and Method for Producing and/or Treating Particles Non-Final OA Glatt Ingenieurtechnik Gesellschaft mit beschränkter Haftung
18024002 CATALYTIC REACTOR WITH IMPROVED PROPERTIES Non-Final OA CatIP B.V.
17969969 Pressure Vessel with Check Valve Non-Final OA MLS MIKROWELLEN-LABOR-SYSTEME GMBH
17918284 CHEMICAL REACTOR Non-Final OA B4CHEM S.R.L.
17909172 SYSTEMS AND METHODS FOR PRODUCING CHLORINE DIOXIDE Final Rejection CHEME SOLUTIONS PROCESS ENGINEERING INC.
17905475 APPARATUS AND PROCESS FOR THERMAL TREATMENT OF RAW MATERIAL CONTAINING LITHIUM COMPOUNDS AND PHOSPHORUS COMPOUNDS, METHOD OF RECOVERING LITHIUM AND/OR PHOSPHORUS FROM RESIDUE MATERIAL OF LITHIUM-ION BATTERIES Final Rejection Andreas SCHÖNBERG
17793318 AN APPARATUS TO EFFECT AT LEAST PARTIAL BREAKDOWN OF A MATERIAL OR PRODUCT ITEM OR A COMBINATION OF MATERIALS OR PRODUCT ITEMS Non-Final OA RDC TECHNOLOGIES LTD
17793317 A METHOD OF AT LEAST PARTIALLY BREAKING DOWN A MATERIAL OR PRODUCT ITEM OR A COMBINATION OF MATERIALS OR PRODUCT ITEMS Final Rejection RDC TECHNOLOGIES LTD

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