Prosecution Insights
Last updated: May 29, 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
16
Total Applications
+0.0%
Interview Lift
1002
Avg Prosecution Days
Based on 1 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
16.7%
§102 Novelty
83.3%
§103 Obviousness
0%
§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 Non-Final OA Toyota Motor Engineering & Manufacturing North America, Inc.
18361991 ZEOLITE MEMBRANE COMPLEX, SEPARATION APPARATUS, MEMBRANE REACTOR, AND METHOD OF PRODUCING ZEOLITE MEMBRANE COMPLEX Non-Final OA NGK INSULATORS, LTD.
18244575 Biogenic Refinery with SCR System Using Urea Extracted from Feedstock Non-Final OA DYPER P.B.C.
18263646 GASOLINE ENGINE EXHAUST GAS PURIFYING CATALYST FILTER Non-Final OA N.E. CHEMCAT CORPORATION
18261300 PSEUDO SOLID STATE CRYSTALLIZATION OF ZEOLITES AND USES THEREIN Non-Final OA Ketjen Limited Liability Company

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month