Prosecution Insights
Last updated: May 29, 2026

Examiner: STEPHENSON, DANIEL P

Tech Center 3600 • Art Units: 3676

This examiner grants 87% of resolved cases

Performance Statistics

86.6%
Allow Rate
+34.6% vs TC avg
1,264
Total Applications
-25.9%
Interview Lift
809
Avg Prosecution Days
Based on 1257 resolved cases, 2023–2026

Rejection Statute Breakdown

1.6%
§101 Eligibility
20.3%
§102 Novelty
63.1%
§103 Obviousness
7.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18402190 RESISTIVITY INVERSION INTERPRETATION BY AI ASSISTANT DURING GEOSTEERING JOB Non-Final OA Halliburton Energy Services, Inc.
19265750 METHOD FOR CEMENTATION IN CARBONATE ROCKS UNDER SEVERE CIRCULATION LOSS CONDITIONS Non-Final OA PETROLEO BRASILEIRO S.A. - PETROBRAS
19182052 Perforating Gun and Method of Using Same Non-Final OA Reach Wireline, LLC
19019128 APPARATUS, SYSTEM AND PROCESS FOR REGULATING A CONTROL MECHANISM OF A WELL Non-Final OA Intelligent Wellhead Systems Inc.
18629862 DOWNHOLE ANCHORING ASSEMBLY Non-Final OA Oilify New-tech Solutions Inc.

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