Prosecution Insights
Last updated: October 26, 2026

Eugenia Wang, USPTO Patent Examiner

Listed by the USPTO as WANG, EUGENIA

Tech Center 1700 • Art Units: 1726 1729 1759 1795 1796

This examiner grants 55% of resolved cases

Analysis

WANG, EUGENIA examines applications in Tech Center 1700 and Art Unit 1726. Her record covers 711 resolved cases, with a 54.6% allowance rate and a median of 1475 days to allowance. The allowance rate is close to an even division of resolved matters, while the median timing indicates a prosecution process extending substantially beyond three years.

The interview lift of 34.5% indicates a strong positive association between interviews and allowance. The leading companies are LG Energy Solution Ltd., Samsung SDI Co., Ltd., and Toyota Motor Corporation. The leading firms are Dickinson Wright PLLC - Washington DC, SUGHRUE MION, PLLC, and Womble Bond Dickinson US LLP. Applicants may benefit from early interviews supported by claim amendments that directly address the central technical disputes.

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

Performance Statistics

54.6%
Allow Rate
-10.4% vs TC avg
743
Total Applications
+34.5%
Interview Lift
1475
Avg Prosecution Days
Based on 711 resolved cases, 2023–2026

Rejection Statute Breakdown

0.1%
§101 Eligibility
15.6%
§102 Novelty
51.1%
§103 Obviousness
27.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18665690 SULFIDE SOLID ELECTROLYTE, METHOD FOR PRODUCING SULFIDE SOLID ELECTROLYTE, ELECTRODE, AND ALL SOLID STATE BATTERY Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18426576 WET MIXTURE, COATED LITHIUM-CONTAINING POSITIVE ELECTRODE ACTIVE MATERIAL PARTICLES, AND METHOD OF PRODUCING LITHIUM ION SECONDARY BATTERY, AND WET MIXTURE, COATED LITHIUM-CONTAINING POSITIVE ELECTRODE ACTIVE MATERIAL PARTICLES, AND LITHIUM ION SECONDARY BATTERY Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
17442360 NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18289666 Electrode Assembly and Manufacturing Method Therefor Final Rejection LG Energy Solution, Ltd.
18272093 ELECTRODE Final Rejection LG ENERGY SOLUTION, LTD.
18267027 METHOD FOR MANUFACTURING CORROSION-PREVENTING LAYER, AND CYLINDRICAL SECONDARY BATTERY Non-Final OA LG ENERGY SOLUTION, LTD.
18032413 Battery Pack and Automobile Comprising Same Non-Final OA LG Energy Solution, Ltd.
18515260 ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRICAL DEVICE Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18757717 NEGATIVE ACTIVE MATERIAL AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME Non-Final OA Samsung SDI Co., Ltd.
18600395 NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME Non-Final OA SAMSUNG SDI CO., LTD.
18253378 SECONDARY BATTERY Non-Final OA Samsung SDI Co., Ltd.
18105399 STRUCTURAL DIVIDER FINS FOR USE WITHIN TRACTION BATTERY PACKS Non-Final OA FORD GLOBAL TECHNOLOGIES, LLC
18404671 BATTERY POSITIVE ELECTRODE MATERIAL AND APPLICATION THEREOF Non-Final OA BYD COMPANY LIMITED
18421094 HIGH SPEED PRODUCTION OF THICK CATHODE ELECTRODE FOR A BATTERY SYSTEM OF AN ELECTRIC VEHICLE Final Rejection GM Global Technology Operations LLC

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Frequently Asked Questions

What is examiner Eugenia Wang's allowance rate?

54.6% of resolved applications examined by Eugenia Wang were allowed (711 resolved cases), compared with 35.4% across Art Unit 1726 over the last five years.

Does an interview help with examiner Eugenia Wang?

This examiner's interview lift is +34.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Eugenia Wang take to allow a patent?

Applications allowed by Eugenia Wang took 1,475 days on average from filing to allowance.

Which art unit does examiner Eugenia Wang work in?

Eugenia Wang examines applications in Art Unit 1726 in Tech Center 1700 (Chemistry & Materials).

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