Prosecution Insights
Last updated: October 26, 2026

Daniel P Stephenson, USPTO Patent Examiner

Listed by the USPTO as STEPHENSON, DANIEL P

Tech Center 3700 • Art Units: 3676 3753

This examiner grants 86% of resolved cases

Performance Statistics

86.5%
Allow Rate
+16.5% vs TC avg
1,287
Total Applications
-25.5%
Interview Lift
806
Avg Prosecution Days
Based on 1271 resolved cases, 2023–2026

Rejection Statute Breakdown

2.5%
§101 Eligibility
30.6%
§102 Novelty
41.1%
§103 Obviousness
14.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19631712 DOWNHOLE TOOL INCLUDING A SACRIFICIAL CONDUCTIVE PROTECTION LAYER POSITIONED ABOUT A MATERIAL TO BE PROTECTED Non-Final OA Halliburton Energy Services, Inc.
19306927 OPEN HOLE GRAVEL PACK SYSTEM FOR MANAGED PRESSURE DRILLING (MPD) APPLICATIONS Final Rejection Halliburton Energy Services, Inc.

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Frequently Asked Questions

What is examiner Daniel P Stephenson's allowance rate?

86.5% of resolved applications examined by Daniel P Stephenson were allowed (1,271 resolved cases), compared with 63.4% across Art Unit 3676 over the last five years.

Does an interview help with examiner Daniel P Stephenson?

This examiner's interview lift is -25.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Daniel P Stephenson take to allow a patent?

Applications allowed by Daniel P Stephenson took 806 days on average from filing to allowance.

Which art unit does examiner Daniel P Stephenson work in?

Daniel P Stephenson examines applications in Art Unit 3676 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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