Prosecution Insights
Last updated: October 02, 2026

Examiner: ZENG, LINGWEN R

Tech Center 1700 • Art Units: 1723 1736 1755

This examiner grants 77% of resolved cases

Analysis

Lingwen R. Zeng is an examiner in Art Unit 1723 of Tech Center 1700. He has 542 resolved cases and an allowance rate of 76.6 percent. This 76.6 percent rate indicates a probability of success for applicants. The median days to allowance is 1153. This 1153-day figure is a metric for managing prosecution timelines. Practitioners can rely on this duration for successful cases in Tech Center 1700.

The interview lift of 20.3 percent suggests that interviews are a tool for securing an allowance. This 20.3 percent lift should be a part of any prosecution strategy, as it offers an increase in the odds of a grant. With 542 resolved cases, the 76.6 percent allowance rate is a statistic for practitioners. The 20.3 percent lift suggests that the examiner is receptive to verbal arguments. The 1153-day median is a reference point for pendency in Art Unit 1723. The data points to a predictable path.

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

Performance Statistics

76.6%
Allow Rate
+11.6% vs TC avg
567
Total Applications
+20.3%
Interview Lift
1153
Avg Prosecution Days
Based on 542 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
23.8%
§102 Novelty
64.5%
§103 Obviousness
6.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18687738 Fuel Cell Stack Module Non-Final OA Robert Bosch GmbH
18541772 BATTERY MODULE Non-Final OA HONDA MOTOR CO., LTD.
17681773 ELECTRIC BATTERY AND MOTOR VEHICLE Final Rejection Mahle International GmbH
18687809 SECONDARY BATTERY WITH TERMINAL STRUCTURE Non-Final OA LG ENERGY SOLUTION, LTD.
18032587 Pouch Sealing Apparatus Final Rejection LG Energy Solution, Ltd.
18029372 BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME Non-Final OA LG Energy Solution, Ltd.
18223673 SYSTEM FOR CONTROLLING THICKNESS OF ELECTRODE Non-Final OA KIA CORPORATION
18290864 Drive Battery for a Motor Vehicle, and Motor Vehicle Comprising Such a Drive Battery Non-Final OA Bayerische Motoren Werke Aktiengesellschaft
18599032 END COVER ASSEMBLY, BATTERY CELL, BATTERY, AND POWER CONSUMPTION DEVICE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18419300 BATTERY CELL, BATTERY, AND POWER CONSUMING DEVICE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18549191 Battery Cell Manufacturing Device Non-Final OA SK On Co., Ltd.
18478609 PORE-CHANNEL FORMATION IN HIGH MASS LOADING, LITHIUM-ION BATTERY ELECTRODES ACHIEVED VIA AEROSOL JET PRINTING Non-Final OA Government of the United States as Represented by the Secretary of the Air Force
18699515 ENERGY STORAGE DEVICE Non-Final OA GS Yuasa International Ltd.
18598139 ENCLOSURE FOR BATTERY CELL INCLUDING NANOPRECIPITATION STRENGTHENED STEEL Non-Final OA GM GLOBAL TECHNOLOGY OPERATIONS LLC
18721936 A POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY LITHIUM-ION BATTERIES Non-Final OA Umicore
18212795 BATTERY PACK AND UNMANNED AERIAL VEHICLE Final Rejection NINGDE AMPEREX TECHNOLOGY LIMITED
18544744 BATTERY CELL, BATTERY AND ELECTRICAL DEVICE Non-Final OA Dongguan Amperex Technology Limited
18030363 BATTERY ASSEMBLIES, COMPONENTS THEREOF, AND METHODS OF MANUFACTURE Final Rejection EAGLEPICHER TECHNOLOGIES, LLC

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