Prosecution Insights
Last updated: May 29, 2026

Examiner: MCCAIG, BRIAN A

Tech Center 1700 • Art Units: 1772 1774 1797

This examiner grants 80% of resolved cases

Performance Statistics

80.1%
Allow Rate
+15.1% vs TC avg
1,354
Total Applications
+13.5%
Interview Lift
871
Avg Prosecution Days
Based on 1333 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
4.4%
§102 Novelty
68.2%
§103 Obviousness
23.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18617309 REFORMING PROCESS 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
18448883 METHODS FOR IMPROVING METAL DISPERSION OF A CATALYST Non-Final OA Chevron Phillips Chemical 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
18553120 CATALYST STRUCTURE FOR SYNTHESIS GAS PRODUCTION, SYNTHESIS GAS PRODUCTION DEVICE, AND METHOD FOR PRODUCING CATALYST STRUCTURE FOR SYNTHESIS GAS PRODUCTION Non-Final OA NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
18218403 CATALYSTS AND PROCESSES FOR THE CONVERSION OF SYNTHESIS GAS TO LIQUEFIED PETROLEUM GAS (LPG) HYDROCARBONS Non-Final OA GTI Energy
18465187 CATALYSTS FOR GASOLINE ENGINE EXHAUST GAS TREATMENTS Non-Final OA Johnson Matthey (Shanghai) Chemicals Limited
18549294 PROCESS FOR PRODUCING A NOBLE METAL-MODIFIED GRAPHITIZED CARBON MATERIAL AND SUPPORTED CATALYST Non-Final OA Heraeus Deutschland GmbH & Co. KG
18548618 POROUS SORPTIVE SOLID PHASE MICROEXTRACTION DEVICES AND PREPARATION THEREOF Non-Final OA MEMORIAL UNIVERSITY OF NEWFOUNDLAND
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.
18258118 METHOD FOR REGENERATING ADSORPTION MEDIA USING CARBON DIOXIDE Non-Final OA GRANITEFUEL ENGINEERING INC.
18119589 DEHYDROGENATION CATALYST Non-Final OA Alan Mitchell Clegg

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