Prosecution Insights
Last updated: April 19, 2026

Examiner: MCCAIG, BRIAN A

Tech Center 1700 • Art Units: 1772 1774 1797

This examiner grants 80% of resolved cases

Performance Statistics

80.0%
Allow Rate
+15.0% vs TC avg
1351
Total Applications
+13.6%
Interview Lift
926
Avg Prosecution Days
Based on 1321 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
17.1%
§102 Novelty
42.9%
§103 Obviousness
31.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18617309 REFORMING PROCESS Non-Final OA Chevron U.S.A. Inc.
18261481 HYDROISOMERIZATION CATALYSTS Non-Final OA CHEVRON U.S.A. Inc.
18270208 SELECTIVE HYDROCRACKING OF NORMAL PARAFFINS Non-Final OA CHEVRON U.S.A. INC.
18272886 CATALYTICALLY ACTIVE PARTICULATE FILTER BODY AND METHOD OF MAKING Non-Final OA CORNING INCORPORATED
18236116 METHOD FOR MANUFACTURING COFFEE ACTIVATED CARBON USING COFFEE WASTE, COFFEE ACTIVATED CARBON MANUFACTURED USING THE SAME, AND COMBI FILTER FOR VEHICLE AIR CONDITIONING SYSTEM INCLUDING COFFEE ACTIVATED CARBON Non-Final OA KIA CORPORATION
18448883 METHODS FOR IMPROVING METAL DISPERSION OF A CATALYST Non-Final OA Chevron Phillips Chemical Company LP
18080463 CATALYST INCLUDING NICKEL-BASED INTERMETALLIC COMPOUND AND METHOD OF MANUFACTURING THE SAME Non-Final OA Korea Institute of Science and Technology
18659201 METHODS AND SYSTEMS FOR ENHANCING PROCESSING OF HYDROCARBONS IN A FLUID CATALYTIC CRACKING UNIT USING PLASTIC Non-Final OA MARATHON PETROLEUM COMPANY LP
18241559 GRAFTING SORBENT MOIETIES INTO RIGID SCAFFOLDS Non-Final OA The Government of the United States of America, as represented by the Secretary of the Navy
18218403 CATALYSTS AND PROCESSES FOR THE CONVERSION OF SYNTHESIS GAS TO LIQUEFIED PETROLEUM GAS (LPG) HYDROCARBONS Non-Final OA GTI Energy
18471782 PROCESS AND APPARATUS FOR REGENERATING CATALYST FROM A METHANOL TO OLEFINS PROCESS Non-Final OA UOP LLC
18379939 Immobilization of Molecular Catalysts on Solid Powders via Vapor Deposition of Encapsulating Nano-Layers for Use as Heterogeneous Chemical Catalysts Non-Final OA University of South Carolina
18283248 CATALYSTS AND METHODS FOR THE HYDRATION AND ABSORPTION OF CARBON DIOXIDE Non-Final OA Air Company Holdings, Inc.
18286842 RADIOACTIVE IODINE ADSORBENT, METHOD FOR PRODUCING RADIOACTIVE IODINE ADSORBENT, AND METHOD FOR PROCESSING RADIOACTIVE IODINE Non-Final OA HITACHI-GE NUCKEAR ENERGY, LTD.
18483221 OLEFIN POLYMERIZATION CATALYST COMPONENTS CONTAINING SILANE AND PROCESS FOR THE PRODUCTION OF POLYPROPYLENE HAVING HIGH ISOTACTICITY AT HIGH MELT FLOW RATE Non-Final OA Formosa Plastics Corporation, U.S.A.
18465187 CATALYSTS FOR GASOLINE ENGINE EXHAUST GAS TREATMENTS Non-Final OA Johnson Matthey (Shanghai) Chemicals Limited
18275384 LONG SHELF LIFE STABLE ORGANORUTHENIUM COMPLEXES AS (PRE)CATALYSTS FOR OLEFIN METATHESIS Non-Final OA APEIRON SYNTHESIS S.A.
18260422 METHOD OF PRODUCTION OF ADSORPTION/FILTRATION NANOMATERIAL FOR HIGH-VOLUME CLEANING OF LIQUIDS AND COMPOSITE ADSORPTION/FILTRATION NANOMATERIAL Non-Final OA ART CARBON S. R. O.
18217239 METHOD FOR PREPARING AMORPHOUS SILICA-ALUMINA ENCAPSULATED METAL OXIDE CATALYST AND APPLICATION THEREOF Non-Final OA NANJING RESOURCES AND ENVIRONMENT ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
18258118 METHOD FOR REGENERATING ADSORPTION MEDIA USING CARBON DIOXIDE Non-Final OA GRANITEFUEL ENGINEERING INC.
18036401 CATALYST SYSTEM AND PROCESS FOR PRODUCING BISPHENOL-A Non-Final OA BADGER LICENSING LLC
18119589 DEHYDROGENATION CATALYST Non-Final OA Alan Mitchell Clegg

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