Prosecution Insights
Last updated: May 29, 2026

Examiner: CEPLUCH, ALYSSA L

Tech Center 1700 • Art Units: 1722 1772

This examiner grants 62% of resolved cases

Performance Statistics

62.1%
Allow Rate
-2.9% vs TC avg
565
Total Applications
+25.4%
Interview Lift
990
Avg Prosecution Days
Based on 501 resolved cases, 2023–2026

Rejection Statute Breakdown

0.1%
§101 Eligibility
1.5%
§102 Novelty
90.0%
§103 Obviousness
4.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18530454 INTEGRATED NAPHTHA REFORMING AND BENZYL TOLUENE PRODUCTION PROCESS Non-Final OA Saudi Arabian Oil Company
18642898 CATALYST SYSTEM AND ETHYLENE OLIGOMERIZATION PROCESS FOR THE PREPARATION OF LINEAR ALPHA OLEFINS Non-Final OA Chevron Phillips Chemical Company LP
18428349 OLEFIN/PARAFFIN SEPARATION USING RECTIFIED ETS-4 Non-Final OA Chevron Phillips Chemical Company LP
18623523 Diels-Alder coupling for cycloalkane production for sustainable aviation fuel Non-Final OA Massachusetts Institute of Technology
18470962 CONVERSION OF WASTE PLASTICS TO PETROCHEMICALS Final Rejection LUMMUS TECHNOLOGY LLC
18658586 METHOD FOR POLYMERIZING AND UPGRADING BIOMASS PYROLYSIS OIL Non-Final OA KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
18720045 PROCESS FOR CONVERSION OF WASTE PLASTICS INTO CHEMICALS Non-Final OA SABIC GLOBAL TECHNOLOGIES B.V.
18683198 PROCESS FOR DECHLORINATION OF WASTE PLASTICS Final Rejection SABIC Global Technologies B.V.
18252439 CYCLOHEXYLBENZENE PRODUCTION METHOD AND CYCLOHEXYLBENZENE COMPOSITION USING SAME Final Rejection ENEOS Corporation
18717874 Process and System for Producing One or More Hydrocarbons Non-Final OA Linde GmbH
18434760 METHOD FOR GENERATING ISOBUTENE, CATALYST FOR GENERATING ISOBUTENE, AND ISOBUTENE GENERATION SYSTEM Final Rejection NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
18434753 METHOD FOR GENERATING ISOBUTENE, CATALYST FOR GENERATING ISOBUTENE, AND ISOBUTENE GENERATION SYSTEM Final Rejection NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
18683693 CATALYSTS FOR DEHYDROGENATION PROCESS Non-Final OA Dow Global Technologies LLC
18500161 PROCESS FOR PRODUCING RENEWABLE ALKYLBENZENE PRODUCTS Final Rejection UOP LLC
18500162 HEAT AND HYDROGEN INTEGRATION IN PROCESS FOR RENEWABLE ALKYLBENZENE PRODUCTS Final Rejection UOP LLC
18483573 CATALYTIC REACTION PROCESS Non-Final OA UOP LLC
17872714 PROCESS FOR CONVERTING OLEFINS TO DISTILLATE FUELS Non-Final OA UOP LLC
18312898 CO-PROCESSING ROUTE FOR HYDROTREATING POLYMER WASTE-BASED MATERIAL Non-Final OA Neste Oyj
18738261 PROCESS FOR ISOMERIZATION OF 2,4,4-TRIMETHYLPENT-2-ENE TO 2,4,4-TRIMETHYLPENT-1-ENE Non-Final OA Evonik Oxeno GmbH & Co. KG
18288767 INTEGRATION FOR FEED DILUTION IN OXIDATIVE DEHYDROGENATION (ODH) REACTOR SYSTEM Final Rejection NOVA CHEMICALS (INTERNATIONAL) S.A.
18704131 PROCESS FOR PRODUCTION OF A LOW-AROMATIC HYDROCARBON FROM PYROLYSIS OIL Non-Final OA Topsoe A/S
18558409 HYDROPROCESSING WITH INCREASED RECYCLE GAS PURITY Non-Final OA TOPSOE A/S
18254611 SELECTIVE AND FLEXIBLE PRODUCTION OF SYNTHETIC GASOLINE Final Rejection TOPSOE A/S
18002177 Method for selective decarboxylation of oxygenates Non-Final OA TOPSOE A/S
18617817 Crosslinked Polymers with Tunable Coefficients of Thermal Expansion Non-Final OA The Board of Regents of the University of Texas Systems
18692899 HOT RECYCLED CONTENT PYROLYSIS VAPOR DIRECTLY TO CROSS-OVER SECTION OF CRACKER FURNACE Non-Final OA ExxonMobil Product Solutions Company
18567956 CHEMICAL RECYCLING FACILITY AND PROCESS WITH ENHANCED INTEGRATION Non-Final OA ExxonMobil Product Solutions Company
17755320 PROCESSES AND SYSTEMS FOR MAKING RECYCLE CONTENT HYDROCARBONS THROUGH AN ETHYLENE FRACTIONATOR Non-Final OA ExxonMobil Product Solutions Company
18580753 CATALYST ASSISTED PYROLYSIS PROCESS FOR CONVERTING MIXED PLASTIC WASTE TO FUELS Non-Final OA PACT FUEL, LLC
17728501 PROCESSES FOR CATALYTIC PARAFFIN DEHYDROGENATION AND CATALYST RECOVERY Non-Final OA Kellogg Brown & Root LLC

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