Prosecution Insights
Last updated: August 17, 2026

Examiner: RO, YONG-SUK

Tech Center 3600 • Art Units: 3672 3676

This examiner grants 85% of resolved cases

Performance Statistics

85.4%
Allow Rate
+33.4% vs TC avg
1,306
Total Applications
+7.7%
Interview Lift
841
Avg Prosecution Days
Based on 1284 resolved cases, 2023–2026

Rejection Statute Breakdown

1.3%
§101 Eligibility
32.2%
§102 Novelty
33.0%
§103 Obviousness
25.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19141355 TECHNIQUES FOR AUTOMATING DETECTION OF MILLING EVENTS AND PERFORMANCE OF MILLING OPERATIONS Non-Final OA Schlumberger Technology Corporation
19244983 BLUNT-NOSED ROLLER CONE HYBRID BIT Final Rejection Schlumberger Technology Corporation
19326232 STABILIZER INCLUDING MODIFIED HELICAL WELLBORE STABILIZING ELEMENTS Non-Final OA Halliburton Energy Services, Inc.
18306467 ASYMMETRIC ANCHORING RIDGE DESIGN FOR EXPANDABLE LINER HANGER Non-Final OA Halliburton Energy Services, Inc.
17833656 ISOLATION SLEEVE WITH HIGH-EXPANSION SEALS FOR PASSING THROUGH SMALL RESTRICTIONS Non-Final OA Halliburton Energy Services, Inc.
18532173 SYSTEMS AND METHODS FOR SUBSEA POWER GENERATION AND FLUID REGULATION Non-Final OA OneSubsea IP UK Limited
18422623 ELECTROMAGNETIC TELEMETRY GAP SUB Final Rejection Baker Hughes Oilfield Operations LLC
17211522 FLUID INLET SLEEVES FOR IMPROVING FLUID FLOW IN EARTH-BORING TOOLS, EARTH-BORING TOOLS HAVING FLUID INLET SLEEVES, AND RELATED METHODS Final Rejection Baker Hughes Oilfield Operations LLC

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