Prosecution Insights
Last updated: October 02, 2026

Examiner: HEMINGWAY, TIMOTHY G

Tech Center 1700 • Art Units: 1754

This examiner grants 43% of resolved cases

Analysis

Timothy G. Hemingway is an examiner in Art Unit 1754, which is part of Tech Center 1700. He has managed 82 resolved cases, providing a sufficient sample to identify his prosecution trends. His allowance rate is 42.7 percent, which suggests a moderately challenging environment for applicants. This 42.7 percent rate indicates that slightly less than half of the applications he reviews are granted, requiring a focused and effective prosecution strategy. The 82 resolved cases establish an initial baseline for evaluating his examination style.

The interview lift of 19.2 percent is a positive sign for applicants. This lift suggests that direct communication with the examiner can significantly improve the chances of obtaining an allowance compared to the 42.7 percent baseline. By conducting an interview, practitioners can address the examiner's concerns more directly and potentially find a path to allowable subject matter. The 19.2 percent lift is a valuable data point for strategic planning in Art Unit 1754.

The median days to allowance for applications under his review is 1111. This timeline is a useful benchmark for managing expectations regarding the duration of the patent process in Tech Center 1700. The 1111-day median pendency, combined with the 42.7 percent allowance rate, highlights the importance of using tools like the 19.2 percent interview lift to navigate the process. The 1111-day duration is a key metric for long-term planning.

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

Performance Statistics

42.7%
Allow Rate
-22.3% vs TC avg
131
Total Applications
+19.2%
Interview Lift
1111
Avg Prosecution Days
Based on 82 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
16.2%
§102 Novelty
58.5%
§103 Obviousness
22.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18594035 NEGATIVE ELECTRODE ACTIVE MATERIAL LAYER Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18108172 POLYMER POROUS FILM, SEPARATOR FOR BATTERY, ELECTRODE UNIT, ELECTRODE FRAMEWORK, BATTERY, AND METHOD OF PRODUCING POLYMER POROUS FILM Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18029212 LITHIUM SECONDARY BATTERY Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
17926054 POWER STORAGE DEVICE AND ELECTRODE OR SEPARATOR USED FOR SAME Final Rejection PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
18039809 NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY POSITIVE ELECTRODE AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY Final Rejection Panasonic Energy Co., Ltd
18417456 METHOD OF PRODUCING COMPOSITE SOLID ELECTROLYTE Non-Final OA KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
18301264 FUEL CELL SYSTEM Final Rejection HONDA MOTOR CO., LTD.
18299725 FUEL CELL SYSTEM Final Rejection HONDA MOTOR CO., LTD.
18131443 LITHIUM-ION BATTERY Non-Final OA HONDA MOTOR CO., LTD.
18374302 Negative Electrode and Secondary Battery Non-Final OA LG Energy Solution, Ltd.
18029633 ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME Final Rejection LG ENERGY SOLUTION LTD.
17913938 Housing Element for an Electrical Energy Store of a Motor Vehicle and Motor Vehicle Final Rejection Bayerische Motoren Werke Aktiengesellschaft
18595579 BATTERY PACK Non-Final OA SAMSUNG SDI CO., LTD.
18476937 LITHIUM METAL BATTERY AND METHOD OF PREPARING THE SAME Non-Final OA Samsung SDI Co., Ltd.
18013207 NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME Non-Final OA SAMSUNG SDI CO., LTD.
19280137 BATTERY CELL, BATTERY, ELECTRIC APPARATUS, AND ENERGY STORAGE APPARATUS Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18189013 BATTERY CELL, BATTERY, ELECTRIC DEVICE, AND MANUFACTURING METHOD AND DEVICE OF BATTERY CELL Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
17549481 METHOD FOR PRODUCING A CERAMIC MULTILAYER BLANK Final Rejection DENTSPLY SIRONA INC.
18078527 SEPARATOR FOR SECONDARY BATTERY, METHOD OF MANUFACTURING THE SAME, AND SECONDARY BATTERY INCLUDING THE SAME Final Rejection SK On Co., Ltd.
18132538 Stretching rod for forming containers Final Rejection SIDEL PARTICIPATIONS
18344173 IMPACT ENERGY ATTENUATION SYSTEM FOR A FUEL CELL Final Rejection GM GLOBAL TECHNOLOGY OPERATIONS LLC
18058913 Climate module, battery housing and high voltage battery box Non-Final OA MANN+HUMMEL GmbH
18647127 POSITIVE ELECTRODE AND ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS USING SAME Non-Final OA Ningde Amperex Technology Limited
18010420 IMPROVED MEMBRANES WITH NANOPARTICLE INORGANIC FILLER Non-Final OA Celgard, LLC
18007745 A HEAT-RESISTANT BATTERY SEPARATORS AND RELATED BATTERIES AND METHODS Non-Final OA Celgard, LLC
18357652 BATTERY CELL Non-Final OA AESC JAPAN LTD.
17912764 Stretching Device and Method for Stretching a Plastic Film in the Transport Direction Thereof Final Rejection Windmöller & Hölscher KG

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