Prosecution Insights

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Last updated: August 17, 2026

Examiner: LAU, TUNG S

Tech Center 3700 • Art Units: 1686 2812 2855 2857 2862 2863 3645 3792

This examiner grants 83% of resolved cases

Performance Statistics

82.8%

Allow Rate

+12.8% vs TC avg

1,165

Total Applications

+14.4%

Interview Lift

1044

Avg Prosecution Days

Based on 1139 resolved cases, 2023–2026

Rejection Statute Breakdown

24.4%

§101 Eligibility

26.8%

§102 Novelty

27.3%

§103 Obviousness

15.6%

§112 Clarity

Currently Pending Office Actions

App #	Title	Status	Assignee
18718224	METHODS FOR HYDRAULIC FRACTURING	Non-Final OA	SCHLUMBERGER TECHNOLOGY CORPORATION
18674308	FUEL TANK MONITORING SYSTEM	Non-Final OA	AIRBUS OPERATIONS LIMITED
18262360	METHOD FOR DETECTING AN UNSTABLE STATE OF A VEHICLE BATTERY	Non-Final OA	Robert Bosch GmbH
18387283	Improved Influx and Loss Detection for Managed Pressure Drilling Operations	Non-Final OA	Halliburton Energy Services, Inc.
18715190	CONDITION MONITORING OF ELECTRICAL DEVICES	Non-Final OA	AUGURY SYSTEMS LTD.
18688294	METHOD FOR ESTIMATING RESISTANCE OF BATTERY AND BATTERY SYSTEM FOR PROVIDING THE METHOD	Non-Final OA	LG ENERGY SOLUTION, LTD.
18397125	FERTILIZATION ASSISTANCE APPARATUS, FERTILIZATION ASSISTANCE METHOD, AND STORAGE MEDIUM	Non-Final OA	NEC Corporation
18418020	SYSTEM FOR MANAGING RECORDS AND PREDICTIONS OF THE SUBSURFACE FRACTURE SPACING	Non-Final OA	SAUDI ARABIAN OIL COMPANY
18500041	TRAJECTORY EVALUATION METHOD AND APPARATUS	Non-Final OA	POSTECH Research and Business Development Foundation
18523163	METHOD OF BUILDING A LiDAR SEMANTIC SEGMENTATION MODEL THROUGH TWO-STEP DOMAIN ADAPTATION AND LiDAR-BASED OBJECT PERCEPTION APPARATUS USING THE SAME	Non-Final OA	KIA CORPORATION
18612932	ACOUSTIC FLUID DENSITY DETERMINATION FOR GEOMETRICALLY COMPLEX FLOW CELLS	Non-Final OA	Baker Hughes Oilfield Operations, LLC
18417528	CEMENT EVALUATION AND CASING ECCENTRICITY DETECTION WITH CBL IN NON-CONCENTRIC CASING STRING WITH NARROW ANNULUS	Non-Final OA	Baker Hughes Oilfield Operations LLC
18633654	SYSTEM AND METHOD FOR OPTIMIZING PERFORMANCE OF ONLINE SERVICES	Non-Final OA	Shopify Inc.

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