Prosecution Insights
Last updated: October 27, 2026

Iswarya Mathew, USPTO Patent Examiner

Listed by the USPTO as MATHEW, ISWARYA

Tech Center 1700 • Art Units: 1724 1729 1788

This examiner grants 0% of resolved cases

Analysis

MATHEW, ISWARYA works in Tech Center 1700 and Art Unit 1724. The record contains 1 resolved case, with a 0.0% allowance rate, a 0.0% interview lift, and a 1215-day median to allowance. These figures provide only a limited basis for predicting future prosecution outcomes.

The recurring companies are LG Energy Solution Ltd., Contemporary Amperex Technology Co., Limited, and Murata Manufacturing Co., Ltd. Listed firms include OLIFF PLC, ARENTFOX SCHIFF LLP - New York, and Barron & Young PLLC. With only 1 resolved case, practitioners should rely primarily on the specific application record rather than treating the profile metrics as a stable pattern.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

0.0%
Allow Rate
-65.0% vs TC avg
36
Total Applications
+0.0%
Interview Lift
1215
Avg Prosecution Days
Based on 1 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
16.1%
§102 Novelty
48.4%
§103 Obviousness
29.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18589542 BATTERY COOLING BLOCK Non-Final OA ROLLS-ROYCE Plc.
18313455 SECONDARY BATTERY NEGATIVE ELECTRODE, MANUFACTURING METHOD OF SECONDARY BATTERY NEGATIVE ELECTRODE, AND SECONDARY BATTERY Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18557308 NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING SAME, AND METHOD FOR PRODUCING NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18692295 METHOD FOR MANUFACTURING ELECTROCHEMICAL DEVICE SEPARATOR Non-Final OA LG ENERGY SOLUTION, LTD.
18433040 METHOD FOR MANUFACTURING SEPARATOR FOR LITHIUM SECONDARY BATTERY, SEPARATOR FOR LITHIUM SECONDARY BATTERY MANUFACTURED THEREFROM, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME Non-Final OA LG ENERGY SOLUTION, LTD.
18241231 Lithium Iron Manganese Phosphate Cathode Material, Preparation Method and Application Thereof Non-Final OA EVE POWER CO., LTD.
18662821 BATTERY CELL, BATTERY, AND ELECTRIC DEVICE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18350029 BATTERY CELL, BATTERY, ELECTRICAL APPARATUS, METHOD AND APPARATUS OF MANUFACTURING BATTERY CELL Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18228941 ELECTROLYTE SOLUTION FOR AQUEOUS ZINC BATTERY AND AQUEOUS ZINC BATTERY Final Rejection KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
18376933 PREPARING METHOD OF ALL-SOLID-STATE RECHARGEABLE BATTERY MODULE THROUGH TEMPERATURE CONTROL AND ALL-SOLID-STATE RECHARGEABLE BATTERY Non-Final OA SAMSUNG SDI CO., LTD.
18637952 CARBON MATERIAL, ELECTRODE INCLUDING CARBON MATERIAL, SECONDARY BATTERY, AND METHOD OF PRODUCING CARBON MATERIAL Non-Final OA Murata Manufacturing Co., Ltd.
18239481 NEGATIVE ELECTRODE FOR SECONDARY BATTERY, AND SECONDARY BATTERY Final Rejection MURATA MANUFACTURING CO., LTD.
18218657 ION BATTERY ELECTRODE MATERIAL AND SYNTHESIZING METHOD THEREOF Final Rejection RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
18566928 NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE, AND LITHIUM-ION SECONDARY BATTERY Non-Final OA SHIN-ETSU CHEMICAL CO., LTD.
18566788 NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE, AND LITHIUM-ION SECONDARY BATTERY Non-Final OA SHIN-ETSU CHEMICAL CO., LTD.
18673309 SECONDARY BATTERY AND METHOD OF MANUFACTURING SECONDARY BATTERY Non-Final OA Prime Planet Energy & Solutions, Inc.
18622150 ELECTROCHEMICAL APPARATUS AND ELECTRIC DEVICE Non-Final OA Ningde Amperex Technology Limited
18534681 POSITIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREOF, AND APPLICATIONS Non-Final OA AESC Japan Ltd.

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Frequently Asked Questions

What is examiner Iswarya Mathew's allowance rate?

0.0% of resolved applications examined by Iswarya Mathew were allowed (1 resolved cases), compared with 63.2% across Art Unit 1724 over the last five years.

Does an interview help with examiner Iswarya Mathew?

This examiner's interview lift is +0.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Iswarya Mathew take to allow a patent?

Applications allowed by Iswarya Mathew took 1,215 days on average from filing to allowance.

Which art unit does examiner Iswarya Mathew work in?

Iswarya Mathew examines applications in Art Unit 1724 in Tech Center 1700 (Chemistry & Materials).

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