Prosecution Insights
Last updated: April 19, 2026

Examiner: LIANG, LEONARD S

Tech Center 2800 • Art Units: 2853 2857 2862

This examiner grants 62% of resolved cases

Performance Statistics

61.7%
Allow Rate
-6.3% vs TC avg
680
Total Applications
+2.9%
Interview Lift
1390
Avg Prosecution Days
Based on 629 resolved cases, 2023–2026

Rejection Statute Breakdown

22.2%
§101 Eligibility
16.4%
§102 Novelty
45.7%
§103 Obviousness
12.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18086256 Assessing and Monitoring Hydrocarbon Exploration Data Maturity Final Rejection Saudi Arabian Oil Company
18162470 DRILL BIT DYSFUNCTION IDENTIFICATION BASED ON COMPACT TORSIONAL BEHAVIOR ENCODING Non-Final OA Halliburton Energy Services, Inc.
17943918 CEMENT BOND EVALUATION IN A WELLBORE Final Rejection Halliburton Energy Services, Inc.
16321515 FLUID ANALYSIS TOOL AND METHOD TO USE THE SAME Final Rejection HALLIBURTON ENERGY SERVICES, INC.
17118081 METHOD FOR EVENT-BASED FAILURE PREDICTION AND REMAINING USEFUL LIFE ESTIMATION Final Rejection Hitachi, Ltd.
17378676 PREDICTIVE MAINTENANCE MODEL DESIGN SYSTEM Non-Final OA The Boeing Company
18255859 Method and Device for Determining a Remaining Service Life of a Technical System Non-Final OA Robert Bosch GmbH
18211464 SYSTEMS AND METHODS FOR DETERMINING RELATIONSHIPS BETWEEN DEFECTS Non-Final OA Palantir Technologies Inc.
17588280 Method for Determining a Physical Parameter of a Pipe-Fluid System Final Rejection ABB Schweiz AG
16327077 MEASUREMENT METHOD AND APPARATUS Non-Final OA RENISHAW PLC
18172113 METHOD FOR APPLYING CONTROL REFERENCE VALUE TO SPECIMEN ANALYZER, SPECIMEN ANALYZER, AND COMPUTER PROGRAM Non-Final OA Sysmex Corporation
17154996 GEODETIC INSTRUMENT COMPRISING A BASE AND A GEODETIC SURVEYING AND/OR PROJECTION MODULE Final Rejection LEICA GEOSYSTEMS AG
17072073 YIELD RATE PREDICTION METHOD, YIELD RATE PREDICTION SYSTEM AND MODEL TRAINING DEVICE OF SEMICONDUCTOR MANUFACTURING PROCESS Non-Final OA UNITED MICROELECTRONICS CORP.
18086132 TOWED PLATFORM CURVED LINE SURVEYING USING FIBER OPTIC GYROSCOPIC SENSING Non-Final OA FNV IP B.V.
18016216 LONG-OFFSET ACQUISITION WITH TOWED STREAMER SPREADS Final Rejection PGS Geophysical AS
17728656 SYSTEM AND METHOD FOR AN ARTIFICIAL INTELLIGENCE ENGINE FORECASTING WATER QUALITY Non-Final OA True Elements, Inc.
17686555 DEVICE FOR DETERMINING EFFECTS OF AGING OF A WEARABLE DEVICE Non-Final OA Clothing Plus MBU Oy
17567356 CORRECTION OF TRANSMISSION LINE INDUCED PHASE AND AMPLITUDE ERRORS IN REFLECTIVITY MEASUREMENTS Non-Final OA COMPASS TECHNOLOGY GROUP LLC

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