Prosecution Insights
Last updated: August 17, 2026

Examiner: LIANG, LEONARD S

Tech Center 2800 • Art Units: 2800 2853 2857 2862 2881

This examiner grants 62% of resolved cases

Performance Statistics

61.9%
Allow Rate
-6.1% vs TC avg
687
Total Applications
+4.2%
Interview Lift
1344
Avg Prosecution Days
Based on 643 resolved cases, 2023–2026

Rejection Statute Breakdown

17.9%
§101 Eligibility
15.8%
§102 Novelty
49.5%
§103 Obviousness
13.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18965165 DYNAMIC FIELD OPERATIONS SYSTEM Non-Final OA Schlumberger Technology Corporation
17937621 LIQUID LEVEL ESTIMATION IN A STEAM GENERATION SYSTEM Non-Final OA WHIRLPOOL CORPORATION
18162470 DRILL BIT DYSFUNCTION IDENTIFICATION BASED ON COMPACT TORSIONAL BEHAVIOR ENCODING Final Rejection Halliburton Energy Services, Inc.
18091936 SYSTEM AND METHOD FOR EVALUATING AND DISPLAYING DOWNHOLE TOOL STRING OPERABILITY CONDITIONS Final Rejection Halliburton Energy Services, Inc.
18621182 METHOD FOR TRAINING TRAJECTORY ESTIMATION MODEL, TRAJECTORY ESTIMATION METHOD, AND DEVICE Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
17909496 Method and Apparatus for Calculating Aging Degree of Battery Non-Final OA LG Energy Solution, Ltd.
18624401 GAS STORAGE REAL TIME MONITORING PLATFORM Non-Final OA Saudi Arabian Oil Company
17378676 PREDICTIVE MAINTENANCE MODEL DESIGN SYSTEM Non-Final OA The Boeing Company
18580364 COMPUTER-IMPLEMENTED METHODS, APPARATUS, COMPUTER PROGRAMS, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUMS Non-Final OA ROLLS-ROYCE PLC
18086132 TOWED PLATFORM CURVED LINE SURVEYING USING FIBER OPTIC GYROSCOPIC SENSING Final Rejection FNV IP B.V.
18145576 NATURAL LANGUAGE BASED MACHINE LEARNING MODEL DEVELOPMENT, REFINEMENT, AND CONVERSION Final Rejection Optum Services (Ireland) Limited
18413549 BATTERY CELL EVALUATION BASED ON EQUIVALENT CIRCUIT MODEL Non-Final OA GM Global Technology Operations LLC
18198026 ACTIVE OPTICAL ELEMENTS BASED ON CHARGE DENSITY WAVE AND BROKEN SYMMETRY Final Rejection UCHICAGO ARGONNE, LLC

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