Prosecution Insights
Last updated: April 19, 2026

Examiner: TCHATCHOUANG, CARL F.R.

Tech Center 2800 • Art Units: 2858 2867

This examiner grants 85% of resolved cases

Performance Statistics

84.8%
Allow Rate
+16.8% vs TC avg
198
Total Applications
+10.0%
Interview Lift
905
Avg Prosecution Days
Based on 164 resolved cases, 2023–2026

Rejection Statute Breakdown

33.5%
§101 Eligibility
6.3%
§102 Novelty
32.5%
§103 Obviousness
24.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18525073 WELL EVALUATION USING WATER CHEMISTRY ANALYSIS Non-Final OA Chevron U.S.A. Inc.
18489429 HYDRAULIC LEAK DETECTION NOVEL ALGORITHM AND METHOD FOR OFFSHORE OIL & GAS PLATFORMS Non-Final OA SAUDI ARABIAN OIL COMPANY
18539490 ELECTROMAGNETIC WAVE CALCULATION SYSTEM AND METHOD OF OBTAINING PREVIOUS DATA Non-Final OA Mitsubishi Electric Corporation
18305649 Measurement Method, Measurement Device, Measurement System, And Non-Transitory Computer-Readable Storage Medium Storing Measurement Program Final Rejection SEIKO EPSON CORPORATION
18305666 Measurement Method, Measurement Device, Measurement System, And Non-Transitory Computer-Readable Storage Medium Storing Measurement Program Final Rejection SEIKO EPSON CORPORATION
18396521 MEASUREMENT DATA ANALYSIS DEVICE, MEASUREMENT DATA ANALYSIS METHOD AND NON-TRANSITORY COMPUTER READABLE MEDIUM STORING MEASUREMENT DATA ANALYSIS PROGRAM Non-Final OA SHIMADZU CORPORATION
18315976 METHOD OF DETERMINING A TIRE PERFORMANCE CHARACTERISTIC OF A TIRE Non-Final OA AIRBUS OPERATIONS LIMITED
18465662 SYSTEMS, APPARATUSES, AND METHODS FOR BATTERY MONITORING AND MANAGEMENT Non-Final OA Honeywell International Inc.
18279298 INFORMATION PROCESSING SYSTEM AND INFORMATION PROCESSING SYSTEM CONTROL METHOD Non-Final OA OMRON CORPORATION
18012941 TEMPERATURE ESTIMATION DEVICE, COMPUTER PROGRAM, AND TEMPERATURE ESTIMATION METHOD Non-Final OA GS Yuasa International Ltd.
18279210 METHOD AND SYSTEM FOR ANALYZING SPATIAL PROBABILITY BASED ON CORRESPONDENCE RELATIONSHIP BETWEEN PRECIPITATION FORECAST AND TELECONNECTION Non-Final OA SUN YAT-SEN UNIVERSITY
18341415 DEVICES, SYSTEMS AND METHODS FOR A CLOUD-BASED METER MANAGEMENT SYSTEM Final Rejection EI ELECTRONICS LLC, D/B/A ELECTRO INDUSTRIES/GAUGE TECH
18551730 MONITORING ARRANGEMENT Non-Final OA Pulsiv Limited
18020453 METHOD FOR REAL-TIME IDENTIFICATION, MONITORING, AND EARLY WARNING OF VORTEX-INDUCED VIBRATION EVENT OF LONG-SPAN SUSPENSION BRIDGE Final Rejection TONGJI UNIVERSITY
18354510 METHOD AND DEVICE FOR RECONSTRUCTING SPECTRUM, SPECTROMETER, NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM, AND ELECTRONIC DEVICE Non-Final OA Shanghai Institute of Technical Physics, Chinese Academy of Sciences
18392508 APPARATUS AND METHODS FOR USING COLLOIDAL PARTICLES TO CHARACTERIZE FRACTURING TREATMENTS Non-Final OA PERM INC.
18515437 RIG INTEGRATED MANAGED PRESSURE DRILLING SYSTEM AND METHOD Non-Final OA Patterson-UTI Drilling Company LLC
18473872 METHOD FOR CALCULATING FLEXURAL CAPACITY OF STEEL PLATE-REINFORCED JOINTS IN SHIELD TUNNELS Non-Final OA Shanghai Tongyan Civil Engineering Technology Corp.,Ltd.
18201152 TEMPERATURE INPUT/OUTPUT (I/O) MODULE WITH INTEGRATED THERMISTOR FOR COLD JUNCTION COMPENSATION Non-Final OA Rockwell Automation Asia Pacific Business Center Pte. Ltd.
18029476 MYOELECTRIC-CONTROLLED PROSTHETIC DEVICE AND METHOD FOR CALIBRATION AND USE OF SAID DEVICE Non-Final OA BionIT Labs S.r.l.
18182442 METHODS AND SYSTEMS FOR SYNCHRONIZING MEASURES OF STRUCTURAL DYNAMICS Final Rejection Safehub Inc.
18071207 SYSTEMS AND METHODS TO DETERMINE SOLAR PRODUCTION Non-Final OA Speed of Light Ops, LLC (dba SOLO)

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