Prosecution Insights
Last updated: May 29, 2026

Examiner: ESSEX, STEPHAN J

Tech Center 1700 • Art Units: 1727 1795

This examiner grants 66% of resolved cases

Performance Statistics

65.5%
Allow Rate
+0.5% vs TC avg
710
Total Applications
-16.1%
Interview Lift
1360
Avg Prosecution Days
Based on 689 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
5.1%
§102 Novelty
87.8%
§103 Obviousness
2.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18270353 NEGATIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR MANUFACTURING NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE COMPRISING NEGATIVE ELECTRODE ACTIVE MATERIAL, AND SECONDARY BATTERY COMPRISING SAME Non-Final OA LG ENERGY SOLUTION, LTD.
18605202 BATTERY SYSTEMS BASED ON LITHIUM DIFLUOROPHOSPHATE Non-Final OA Tesla, Inc.
18026655 ALL-SOLID-STATE BATTERY AND MANUFACTURING METHOD THEREOF Non-Final OA SAMSUNG ELECTRO-MECHANICS CO., LTD.
18462063 SECONDARY BATTERY Non-Final OA UNIVERSITY OF TSUKUBA
18546429 COMPOSITION FOR ELECTROCHEMICAL DEVICE FUNCTIONAL LAYER, FUNCTIONAL LAYER FOR ELECTROCHEMICAL DEVICE, LAMINATE FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE Non-Final OA ZEON CORPORATION
17069405 ELASTIC POLYMER MATRIX-PROTECTED PARTICLES OF ANODE ACTIVE MATERIALS FOR LITHIUM BATTERIES AND METHOD OF MANUFACTURING Non-Final OA Global Graphene Group, Inc.

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