Prosecution Insights
Last updated: October 26, 2026

Cynthia Kyung Soo Walls, USPTO Patent Examiner

Listed by the USPTO as WALLS, CYNTHIA KYUNG SOO

Tech Center 1700 • Art Units: 1723 1724 1726 1751 1795

This examiner grants 72% of resolved cases

Performance Statistics

71.7%
Allow Rate
+6.7% vs TC avg
986
Total Applications
-0.9%
Interview Lift
1263
Avg Prosecution Days
Based on 921 resolved cases, 2023–2026

Rejection Statute Breakdown

0.2%
§101 Eligibility
19.4%
§102 Novelty
53.9%
§103 Obviousness
23.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18960685 SOLID ELECTROLYTE FOR LITHIUM SECONDARY BATTERY INCLUDING SUBSTITUTION ELEMENT AND METHOD OF MANUFACTURING SAME Non-Final OA The Industry & Academic Cooperation in Chungnam National University (IAC)
18712038 METHOD FOR PRODUCING A GAS DIFFUSION LAYER, GAS DIFFUSION LAYER, FUEL CELL, AND DEVICE FOR PRODUCING A GAS DIFFUSION LAYER Non-Final OA Robert Bosch GmbH
18255475 METHOD FOR DETERMINING THE LENGTH AND/OR VOLUME OF THE PURGE PATH WITHIN A FUEL CELL SYSTEM Final Rejection Robert Bosch GmbH
18601416 BATTERY AND METHOD FOR MANUFACTURING BATTERY Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18917529 Method of Manufacturing Electrode for Secondary Battery Using Insulating Composition Including Aqueous Binder Substituted with Non-Aqueous Solvent Non-Final OA LG Energy Solution, Ltd.
18778084 Negative Electrode and Lithium Secondary Battery Non-Final OA LG Energy Solution, Ltd.
18686959 Battery Pack, Battery Module, and Vehicle Including the Same Non-Final OA LG Energy Solution, Ltd.
17908725 Negative Electrode and Secondary Battery Including Same Final Rejection LG Energy Solution, Ltd.
18585076 SOLID BATTERY AND METHOD FOR MANUFACTURING SOLID BATTERY Non-Final OA HONDA MOTOR CO., LTD.
18400829 BATTERY COOLING SYSTEM Non-Final OA HONDA MOTOR CO., LTD.
18589448 COMPOSITE SEPARATOR FOR SECONDARY BATTERY, AND SECONDARY BATTERY COMPRISING THE COMPOSITE SEPARATOR Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
18588167 BATTERY AND ELECTRIC DEVICE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18464932 POSITIVE ELECTRODE ACTIVE MATERIAL, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK AND POWER CONSUMING DEVICE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18587734 SECONDARY BATTERY Non-Final OA Samsung SDI Co., Ltd.
17156457 NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME Non-Final OA Samsung SDI Co., Ltd.
16700203 NEGATIVE ACTIVE MATERIAL COMPOSITE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, NEGATIVE ELECTRODE INCLUDING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME Final Rejection Samsung SDI Co., Ltd.
18519494 METHOD OF MANUFACTURING A BATTERY ELECTRODE Final Rejection MURATA MANUFACTURING CO., LTD.
17955830 SECONDARY BATTERY Final Rejection MURATA MANUFACTURING CO., LTD.
17564970 SECONDARY BATTERY, BATTERY PACK, ELECTRIC TOOL, ELECTRIC AIRCRAFT, AND ELECTRIC VEHICLE Final Rejection MURATA MANUFACTURING CO., LTD.
18210361 EXPANSION PANEL FOR BATTERY CELLS Final Rejection Cummins Inc.
14267212 PACKAGING MATERIAL FOR POWER STORAGE DEVICE Final Rejection TOPPAN PRINTING CO., LTD.
18687015 Electrode For Lithium Secondary Battery, Manufacturing Method of the Same, and Lithium Secondary Battery Including the Same Non-Final OA LG Chem, Ltd.
16964240 NONAQUEOUS ELECTROLYTE SOLUTION FOR BATTERIES, AND LITHIUM SECONDARY BATTERY Non-Final OA MITSUI CHEMICALS, INC.
17951525 NEGATIVE ELECTRODE MATERIAL, NEGATIVE ELECTRODE PLATE, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC APPARATUS Final Rejection Ningde Amperex Technology Limited
17940395 LITHIUM-ION BATTERY AND ELECTRONIC DEVICE Non-Final OA Ningde Amperex Technology Limited
17068686 BATTERY CELL AND BATTERY Final Rejection NINGDE AMPEREX TECHNOLOGY LIMITED

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 Cynthia Kyung Soo Walls's allowance rate?

71.7% of resolved applications examined by Cynthia Kyung Soo Walls were allowed (921 resolved cases), compared with 60.0% across Art Unit 1723 over the last five years.

Does an interview help with examiner Cynthia Kyung Soo Walls?

This examiner's interview lift is -0.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Cynthia Kyung Soo Walls take to allow a patent?

Applications allowed by Cynthia Kyung Soo Walls took 1,263 days on average from filing to allowance.

Which art unit does examiner Cynthia Kyung Soo Walls work in?

Cynthia Kyung Soo Walls examines applications in Art Unit 1723 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