Prosecution Insights
Last updated: April 19, 2026

Examiner: LEE, CRYSTAL J

Tech Center 3600 • Art Units: 1731 3674

This examiner grants 82% of resolved cases

Performance Statistics

82.0%
Allow Rate
+30.0% vs TC avg
526
Total Applications
+21.9%
Interview Lift
847
Avg Prosecution Days
Based on 506 resolved cases, 2023–2026

Rejection Statute Breakdown

1.8%
§101 Eligibility
15.7%
§102 Novelty
49.3%
§103 Obviousness
28.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18714681 Calcium Carbonate Coated Tracers For Assessing Acid Stimulation Operations In A Hydrocarbon Well Final Rejection CHEVRON U.S.A. INC.
18217171 DIRECT BRUCITE CARBONATION FOR CEMENTATION Non-Final OA The Regents of the University of California
17513627 Methods of Making and Using a Cementitious Composition with Ultra-Low Portland Cement Final Rejection Halliburton Energy Services, Inc.
18745460 METHOD FOR HYDRAULIC FRACTURING OF CONVENTIONAL AND UNCONVENTIONAL RESERVOIRS BY INTRODUCING ENERGIZED FLUID Non-Final OA Schlumberger Technology Corporation
19216453 HYDRAULIC FRACTURING WITH DYNAMIC LOADING Non-Final OA ExxonMobil Technology and Engineering Company
19224630 TREATMENT OF SUBTERRANEAN FORMATIONS WITH CROSSLINKED FLUIDS Final Rejection Xinjiang Oilfield Co.
19071903 HYDRAULIC FRACTURING WITH OPTIMIZED FRICTION REDUCER Non-Final OA Liberty Energy Services LLC
19045217 Enhanced Artificial Lift for Oil and Gas Wells Final Rejection LateraLift, LLC
19044224 IMPROVED MICROMESH PROPPANT WITH A TEMPORARY STRUCTURAL STATE FOR ENHANCED HYDRAULIC FRACTURING Non-Final OA CARBO CERAMICS, INC.
18355545 GLASS CERAMIC AND CHEMICALLY STRENGTHENED GLASS Non-Final OA AGC INC.
18816960 STEAM GENERATOR TOOL Final Rejection General Energy Recovery Inc.
18486855 METHOD FOR SUBSURFACE INJECTION CONFORMANCE IMPROVEMENT USING MICRO CALCIUM CARBONATE PARTICLES Non-Final OA Millcreek Capital Management LLC
18264846 LITHIUM-ALUMINOSILICATE GLASS, LITHIUM-ALUMINOSILICATE CHEMICALLY STRENGTHENED GLASS, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF Final Rejection HUNAN KIBING ELECTRONIC GLASS CO.,LTD.

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