Prosecution Insights
Last updated: October 02, 2026

Examiner: GREGORIO, GUINEVER S

Tech Center 1700 • Art Units: 1732 1793

This examiner grants 73% of resolved cases

Performance Statistics

73.0%
Allow Rate
+8.0% vs TC avg
869
Total Applications
+18.5%
Interview Lift
1166
Avg Prosecution Days
Based on 842 resolved cases, 2023–2026

Rejection Statute Breakdown

1.8%
§101 Eligibility
9.0%
§102 Novelty
58.9%
§103 Obviousness
20.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18406058 SILICATES AND/OR SALTS AND METHODS OF PRODUCTION AND USES THEREOF Non-Final OA Massachusetts Institute of Technology
18258329 PLASMA TREATMENT METHOD, METHOD OF PRODUCING PLASMA-TREATED HEXAGONAL BORON NITRIDE POWDER, AND PLASMA TREATMENT DEVICE Non-Final OA JFE STEEL CORPORATION
18443862 LITHIUM RECLAMATION FROM GLASS-BASED MATERIALS BY WATER-DRIVEN EXTRACTION Non-Final OA CORNING INCORPORATED
18549348 METHOD FOR RECOVERING LITHIUM PRECURSOR FROM LITHIUM SECONDARY BATTERY Final Rejection SK INNOVATION CO., LTD.
17729121 HEXAGONAL BORON NITRIDE STRUCTURES Non-Final OA TEXAS INSTRUMENTS INCORPORATED
18471958 BARRIER COATING Non-Final OA Honeywell International Inc.
18371684 COATING AGENT AND OIL-RESISTANT PAPER Final Rejection Mitsubishi Chemical Corporation
18452158 PARTICLES CONVERTIBLE TO LITHIUM TRANSITION METAL COMPOSITE OXIDE AND METHOD FOR PRODUCING THE SAME Final Rejection Prime Planet Energy & Solutions, Inc.
18228784 METHOD FOR PRODUCING SODIUM BOROHYDRIDE Final Rejection NIPPON LIGHT METAL COMPANY, LTD.
18701772 METHOD FOR PRODUCING SPHERICAL SILICA PARTICLES Non-Final OA DENKA COMPANY LIMITED
18498480 APPARATUS AND PROCESS FOR STEAM REFORMING Non-Final OA Air Products and Chemicals, Inc.
18264086 OXIDATION BARRIER MATERIALS AND PROCESS FOR CERAMIC MATRIX COMPOSITES Non-Final OA Oerlikon Metco (US) Inc.

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