Prosecution Insights
Last updated: October 27, 2026

Edna Wong, USPTO Patent Examiner

Listed by the USPTO as WONG, EDNA

Tech Center 1700 • Art Units: 1753 1759 1795

This examiner grants 58% of resolved cases

Performance Statistics

58.4%
Allow Rate
-6.6% vs TC avg
1,109
Total Applications
-19.7%
Interview Lift
1128
Avg Prosecution Days
Based on 1061 resolved cases, 2023–2026

Rejection Statute Breakdown

0.2%
§101 Eligibility
14.1%
§102 Novelty
43.5%
§103 Obviousness
38.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18515711 WATER ELECTROLYSIS SYSTEM Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
18507048 WATER ELECTROLYSIS SYSTEM Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
18649438 USE OF ACIDIC ELECTROLYTE CATIONS FOR SELECTIVE ELECTROCHEMICAL CO2 AND CO CONVERSIONS TO METHANOL Non-Final OA Massachusetts Institute of Technology
18491746 WATER ELECTROLYSIS CELL AND WATER ELECTROLYZER Final Rejection Panasonic Intellectual Property Management Co., Ltd.
19396967 ELECTROCHEMICAL DEHYDROGENATION Non-Final OA Wisconsin Alumni Research Foundation
18370282 POROUS BASE LAYER AND ELECTROCHEMICAL DEVICE Non-Final OA Kia Corporation
18403666 Sulfuric acid production with mineral carbon sequestration Non-Final OA The Regents of the University of California
18572897 ELECTROLYTIC CELL FOR POLYMER ELECTROLYTE MEMBRANE ELECTROLYSIS AND METHOD FOR PRODUCTION THEREOF Non-Final OA Siemens Energy Global GmbH & Co. KG
18293706 PLATING APPARATUS AND PLATING METHOD Non-Final OA EBARA CORPORATION
18506776 BYPASSING PROPERLY OPERATING CELLS Non-Final OA Analog Devices Inc.
18247116 ELECTRODE Final Rejection NITTO DENKO CORPORATION
18011453 PROCESSES FOR ELECTROCHEMICAL UP-CYCLING OF PLASTICS AND SYSTEMS THEREOF Final Rejection TEXAS TECH UNIVERSITY SYSTEM
18838575 PAIRED ELECTROCHEMICAL SYNTHESIS OF OXYMETHYLENE DIMETHYL ETHERS Final Rejection Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
18473034 SEPARATOR PLATE, BIPOLAR PLATE, ELECTROLYZER, AND CORRESPONDING TOOLING Non-Final OA Reinz-Dichtungs-GmbH

Facing This Examiner?

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

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Edna Wong's allowance rate?

58.4% of resolved applications examined by Edna Wong were allowed (1,061 resolved cases).

Does an interview help with examiner Edna Wong?

This examiner's interview lift is -19.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Edna Wong take to allow a patent?

Applications allowed by Edna Wong took 1,128 days on average from filing to allowance.

Which art unit does examiner Edna Wong work in?

Edna Wong examines applications in Art Unit 1753 in Tech Center 1700 (Chemistry & Materials).

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