Prosecution Insights
Last updated: October 26, 2026

Mary Grace Harris, USPTO Patent Examiner

Listed by the USPTO as HARRIS, MARY GRACE

Tech Center 1700 • Art Units: 1729

This examiner grants 69% of resolved cases

Analysis

HARRIS, MARY GRACE is assigned to Tech Center 1700 and Art Unit 1729. The profile includes 205 resolved cases, a 69.3% allowance rate, and a median of 1150 days to allowance. The record indicates that allowance is more common than non-allowance, while the median points to a prolonged prosecution period.

The interview lift is 29.1%, showing a meaningful positive association between interviews and allowance. The leading companies are Contemporary Amperex Technology Co., Limited, LG Energy Solution Ltd., and Toyota Motor Corporation. The listed firms are BIRCH STEWART KOLASCH & BIRCH, LLP, DOWNS RACHLIN MARTIN PLLC, and FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER. Interview planning may be useful for managing both outcome and timing concerns.

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

Performance Statistics

69.3%
Allow Rate
+4.3% vs TC avg
262
Total Applications
+29.1%
Interview Lift
1150
Avg Prosecution Days
Based on 205 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
19.1%
§102 Novelty
58.6%
§103 Obviousness
20.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18580310 Making an Electrochemical Membrane from Low T(alpha) Fluorinated Ionomer Salts Non-Final OA 3M INNOVATIVE PROPERTIES COMPANY
18351162 NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE ACTIVE MATERIAL LAYER AND LITHIUM-ION BATTERY, AND METHOD FOR PRODUCING NEGATIVE ELECTRODE ACTIVE MATERIAL Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18356410 ENERGY STORAGE CONTAINER AND TEMPERATURE CONTROL METHOD Non-Final OA Huawei Digital Power Technologies Co., Ltd.
18527313 BATTERY AND SOLID-STATE BATTERY Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18875088 NEGATIVE ACTIVE MATERIAL, METHOD FOR PREPARING SAME, NEGATIVE ELECTRODE COMPOSITION, NEGATIVE ELECTRODE COMPRISING SAME FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING NEGATIVE ELECTRODE Final Rejection LG ENERGY SOLUTION, LTD.
18693315 Battery Pack and Device Including the Same Non-Final OA LG Energy Solution, Ltd.
18578096 Gas Venting Device, and Battery Module and Battery Pack Including the Same Non-Final OA LG Energy Solution, Ltd.
18577520 Gas Venting Device, and Battery Module and Battery Pack Comprising Same Non-Final OA LG Energy Solution, Ltd.
18025121 BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME Final Rejection LG ENERGY SOLUTION, LTD.
17919675 BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME Non-Final OA LG ENERGY SOLUTION, LTD.
17751969 BATTERY, POWER CONSUMPTION DEVICE, AND METHOD AND DEVICE FOR PRODUCING BATTERY Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
19307047 HEAT EXCHANGE ASSEMBLY, BATTERY APPARATUS, ELECTRIC DEVICE, AND ENERGY STORAGE DEVICE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18486651 BATTERY COOLING DEVICE, BATTERY PACK, ELECTRICAL DEVICE AND METHOD FOR MANUFACTURING BATTERY COOLING DEVICE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18349954 ELECTRODE ASSEMBLY, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRICAL DEVICE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18562562 SECONDARY BATTERY, ELECTRONIC DEVICE, AND FLYING OBJECT Non-Final OA SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
18211946 SECONDARY BATTERY, ELECTRONIC EQUIPMENT, AND ELECTRIC TOOL Non-Final OA MURATA MANUFACTURING CO., LTD.
18338554 WIRE MESH CURRENT COLLECTORS FOR ELECTRODES OF BATTERY CELLS WITH INCREASED JOINT CONTACT AND REDUCED RESISTANCE Non-Final OA GM GLOBAL TECHNOLOGY OPERATIONS LLC

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Frequently Asked Questions

What is examiner Mary Grace Harris's allowance rate?

69.3% of resolved applications examined by Mary Grace Harris were allowed (205 resolved cases), compared with 52.2% across Art Unit 1729 over the last five years.

Does an interview help with examiner Mary Grace Harris?

This examiner's interview lift is +29.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Mary Grace Harris take to allow a patent?

Applications allowed by Mary Grace Harris took 1,150 days on average from filing to allowance.

Which art unit does examiner Mary Grace Harris work in?

Mary Grace Harris examines applications in Art Unit 1729 in Tech Center 1700 (Chemistry & Materials).

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