Prosecution Insights
Last updated: October 27, 2026

Linda N Chau, USPTO Patent Examiner

Listed by the USPTO as CHAU, LINDA N

Tech Center 1700 • Art Units: 1742 1785 1794

This examiner grants 45% of resolved cases

Analysis

CHAU, LINDA N works in tech center 1700 and art unit 1742. The profile covers 584 resolved cases, with a 44.7% allowance rate and a median of 1394 days to allowance. The record shows a lower allowance outcome and a long timeline, making early assessment of claim scope and continuation needs important.

The interview lift is 15.8%, indicating a positive association between interviews and allowance. The listed companies are Samsung SDI, Ford Motor, and TDK. The leading firms are OLIFF, SUGHRUE MION, and The Roy Gross Law Firm. Practitioners may use interviews to focus the dispute, but should maintain realistic expectations about both allowance frequency and time to allowance.

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

Performance Statistics

44.7%
Allow Rate
-20.3% vs TC avg
636
Total Applications
+15.8%
Interview Lift
1394
Avg Prosecution Days
Based on 584 resolved cases, 2023–2026

Rejection Statute Breakdown

0.2%
§101 Eligibility
17.7%
§102 Novelty
56.4%
§103 Obviousness
19.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17919942 Mirrored Winding Pack for Stacked-Plate Superconducting Magnets Final Rejection Massachusetts Institute of Technology
18009650 BATTERY MODULE, BATTERY PACK INCLUDING SAME, AND VEHICLE Final Rejection LG ENERGY SOLUTION, LTD.
18567129 CORE AND POWER BATTERY Non-Final OA EVE POWER CO., LTD.
18276319 BATTERY AND METHOD FOR PRODUCING BATTERY Non-Final OA TDK CORPORATION
18159390 NANOGRANULAR MAGNETIC FILM AND ELECTRONIC COMPONENT Non-Final OA TDK CORPORATION
18237287 ALL-SOLID-STATE BATTERY INCLUDING A POROUS COMPOSITE MEMBRANE Final Rejection Kia Corporation
18789723 SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRICAL DEVICE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18240088 Pyrolysis of 2D Coordination Polymer Precursors for the Formation of ORR Active Solid Acid Fuel Cell Electrode Catalysts Non-Final OA The Government of the United States of America, as represented by the Secretary of the Navy
18117785 EDGE-MILLED MAGNETIC WIRE AND MANUFACTURE THEREOF Final Rejection SNU R&DB FOUNDATION
18732918 ALL-SOLID RECHARGEABLE BATTERY Non-Final OA SAMSUNG SDI CO., LTD.
18435135 SECONDARY BATTERY Non-Final OA Samsung SDI Co., Ltd.
18454616 COMPOSITE ANODE ACTIVE MATERIAL, ANODE AND LITHIUM BATTERY COMPRISING SAME, AND METHOD OF PREPARING SAME Non-Final OA Samsung SDI Co., Ltd.
18706446 GLASS SUBSTRATE FOR MAGNETIC RECORDING MEDIUM, GLASS DISK FOR MAGNETIC RECORDING MEDIUM, METHOD FOR MANUFACTURING MAGNETIC RECORDING MEDIUM, AND METHOD FOR MANUFACTURING GLASS DISK Non-Final OA Nippon Electric Glass Co., Ltd.
18631984 LITHIUM AND MANGANESE RICH POSITIVE ACTIVE MATERIAL COMPOSITIONS Non-Final OA FORD GLOBAL TECHNOLOGIES, LLC
18631999 LITHIUM AND MANGANESE RICH POSITIVE ACTIVE MATERIAL COMPOSITIONS Non-Final OA FORD GLOBAL TECHNOLOGIES, LLC
18159733 METHOD FOR PRODUCING SULFIDE SOLID ELECTROLYTE, AND SULFIDE SOLID ELECTROLYTE Non-Final OA AGC Inc.
18861283 FLUORINE-CONTAINING ETHER COMPOUND, LUBRICANT FOR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM Non-Final OA Resonac Corporation
18781765 LAMINATE FOR RADIATIONAL COOLING, AND METHOD FOR PREPARING THE SAME Non-Final OA Seoul National University R&DB Foundation
18454359 TERNARY ADDITIVES FOR ELECTROLYTES OF BATTERIES INCLUDING SILICON OXIDE-CONTAINING NEGATIVE ELECTRODES AND BATTERIES INCLUDING THE SAME Final Rejection GM GLOBAL TECHNOLOGY OPERATIONS LLC
18363052 ROLL-TO-ROLL HOT CASTING OF FREE-STANDING GEL MEMBRANE FOR BATTERY CELLS Non-Final OA GM GLOBAL TECHNOLOGY OPERATIONS LLC
18374682 ELECTRODE ASSEMBLY, BATTERY, AND ELECTRICAL DEVICE Final Rejection Ningde Amperex Technology Limited

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Frequently Asked Questions

What is examiner Linda N Chau's allowance rate?

44.7% of resolved applications examined by Linda N Chau were allowed (584 resolved cases), compared with 58.3% across Art Unit 1742 over the last five years.

Does an interview help with examiner Linda N Chau?

This examiner's interview lift is +15.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Linda N Chau take to allow a patent?

Applications allowed by Linda N Chau took 1,394 days on average from filing to allowance.

Which art unit does examiner Linda N Chau work in?

Linda N Chau examines applications in Art Unit 1742 in Tech Center 1700 (Chemistry & Materials).

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