Prosecution Insights
Last updated: October 01, 2026

Examiner: ZEMUI, NATHANAEL T

Tech Center 1700 • Art Units: 1723 1725 1727

This examiner grants 56% of resolved cases

Analysis

Nathanael T. Zemui is an examiner in Art Unit 1723 of Tech Center 1700. He has 477 resolved cases with an allowance rate of 56.0 percent. This 56.0 percent rate suggests that more than half of the applications are eventually allowed. The median days to allowance is 1333. This 1333-day figure is a timeframe for this art unit. Practitioners can use this metric to set realistic expectations for their clients in Tech Center 1700.

The interview lift is 24.1 percent. This 24.1 percent lift shows that interviews are an effective strategy for this examiner. This increase is a data point for practitioners to use in their planning. With 477 resolved cases, the 56.0 percent allowance rate provides a view of the examiner's disposition. The 24.1 percent lift remains a tool for overcoming rejections. The 1333-day median is a reference point for pendency in Art Unit 1723. The data points to a process where interviews play a role.

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

Performance Statistics

56.0%
Allow Rate
-9.0% vs TC avg
534
Total Applications
+24.1%
Interview Lift
1333
Avg Prosecution Days
Based on 477 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
17.6%
§102 Novelty
66.3%
§103 Obviousness
14.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18659032 NEGATIVE ELECTRODE FOR BATTERY, BATTERY, AND METHOD FOR MANUFACTURING NEGATIVE ELECTRODE FOR BATTERY Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18200258 MANUFACTURING DEVICE FOR ASSEMBLED BATTERY Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
18180129 INORGANIC SOLID ELECTROLYTE-CONTAINING COMPOSITION, SHEET FOR ALL-SOLID STATE SECONDARY BATTERY, AND ALL-SOLID STATE SECONDARY BATTERY, AND MANUFACTURING METHODS FOR SHEET FOR ALL-SOLID STATE SECONDARY BATTERY AND ALL-SOLID STATE SECONDARY BATTERY Non-Final OA FUJIFILM Corporation
18720834 POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERIES, AND SECONDARY BATTERY Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18406080 BATTERY AND METHOD FOR PRODUCING THE SAME Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18028695 LITHIUM ION SECONDARY BATTERY Final Rejection Panasonic Intellectual Property Management Co., Ltd.
17659774 MAGNESIUM SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SOLUTION FOR MAGNESIUM SECONDARY BATTERY Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18777235 BATTERY Non-Final OA Panasonic Holdings Corporation
18572855 COLLECTOR PLATE AND POWER STORAGE DEVICE USING SAME Non-Final OA Panasonic Energy Co., Ltd.
18531936 ELECTRIC WORK VEHICLE Non-Final OA KUBOTA CORPORATION
18422000 SECONDARY BATTERY AND SECONDARY BATTERY MODULE Non-Final OA HONDA MOTOR CO., LTD.
18185398 APPARATUS FOR MANUFACTURING ALL-SOLID-STATE BATTERY Final Rejection HONDA MOTOR CO., LTD.
19332345 Positive Electrode and Lithium Secondary Battery Including the Same Final Rejection LG Energy Solution, Ltd.
18672751 SULFUR-CARBON COMPOSITE, PREPARATION METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING SAME Non-Final OA LG ENERGY SOLUTION, LTD.
17780642 Positive Electrode Optimized for Improving High-Temperature Life Characteristics and Secondary Battery Comprising the Same Non-Final OA LG Energy Solution, Ltd.
17772644 Crosslinked Separator for Lithium Secondary Battery Including Crosslinked Polyolefin and Method for Manufacturing the Same Final Rejection LG Energy Solution, Ltd.
17760813 Separation Membrane for Electrochemical Device, Electrochemical Device Comprising Same Separation Membrane, and Method for Manufacturing Same Separation Membrane Non-Final OA LG Energy Solution, Ltd.
18362258 BATTERY PACK DEVICE FOR VEHICLE Non-Final OA Kia Corporation
18079445 SOLID ELECTROLYTE FREE-STANDING MEMBRANE FOR ALL-SOLID-STATE BATTERY AND MANUFACTURING METHOD THEREOF Non-Final OA KIA CORPORATION
18760755 SOLID-STATE LITHIUM-ION CONDUCTOR AND METHODS OF MANUFACTURE THEREOF Non-Final OA THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
17727300 POSITIVE ELECTRODE ACTIVE MATERIAL AND MANUFACTURING METHOD OF POSITIVE ELECTRODE ACTIVE MATERIAL Non-Final OA SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
19368893 NICKEL-BASED LITHIUM METAL COMPOSITE OXIDE, PREPARING METHOD THEREOF, AND LITHIUM SECONDARY BATTERY INCLUDING POSITIVE ELECTRODE INCLUDING THE SAME Non-Final OA SAMSUNG SDI CO., LTD.
17359143 NICKEL-BASED LITHIUM METAL COMPOSITE OXIDE, PREPARING METHOD THEREOF, AND LITHIUM SECONDARY BATTERY INCLUDING POSITIVE ELECTRODE INCLUDING THE SAME Final Rejection Samsung SDI Co., Ltd.
19246260 BATTERY CELL AND PREPARATION METHOD THEREFOR, BATTERY AND ELECTRICAL APPARATUS Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
19237007 POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE SHEET, SECONDARY BATTERY, AND ELECTRIC DEVICE Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18637433 BATTERY AND POWER CONSUMING DEVICE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18512056 Secondary Battery, Battery Module, Battery Pack and Electrical Device Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
18180831 POSITIVE ELECTRODE ACTIVE MATERIAL AND RELATED ELECTRODE SHEET, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK AND APPARATUS THEREOF Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
18681682 BATTERY Non-Final OA Maxell, Ltd.
18410012 BATTERY CELL TAB SHAPE VARIATIONS FOR OPTIMIZING BATTERY CELL-TO-BUSBAR ELECTRICAL CONNECTIONS Non-Final OA FORD GLOBAL TECHNOLOGIES, LLC

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