Prosecution Insights
Last updated: August 18, 2026

Examiner: CALDERON, DAVID ANDREW

Tech Center 1700 • Art Units: 1736 1742

This examiner grants 100% of resolved cases

Performance Statistics

100.0%
Allow Rate
+35.0% vs TC avg
23
Total Applications
+0.0%
Interview Lift
1052
Avg Prosecution Days
Based on 2 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
27.6%
§102 Novelty
50.0%
§103 Obviousness
20.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18350856 CATALYST Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18227114 ELECTROCATALYSTS FOR THE OXYGEN EVOLUTION REACTION IN ACID CONDITIONS Final Rejection Toyota Motor Engineering & Manufacturing North America, Inc.
18500496 METHODS FOR MAKING ZEOLITE-Y PARTICLES Non-Final OA Saudi Arabian Oil Company
18480949 METHODS FOR MAKING ZEOLITE-Y PARTICLES Final Rejection Saudi Arabian Oil Company
18552567 CHA-DDR TYPE ZEOLITE MEMBRANE AND METHOD FOR MANUFACTURING THE SAME Non-Final OA KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
18284707 EXHAUST GAS PURIFYING CATALYST COMPOSITION AND EXHAUST GAS PURIFYING CATALYST Final Rejection MITSUI MINING & SMELTING CO., LTD.
18263724 METHOD FOR MANUFACTURING BIMETALLIC HYDROGENATION CATALYST Non-Final OA HANWHA SOLUTIONS CORPORATION
18287060 OXYGEN ABSORBER Non-Final OA MITSUBISHI GAS CHEMICAL COMPANY, INC.

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