Prosecution Insights
Last updated: April 19, 2026

Examiner: EREZO, DARWIN P

Tech Center 3700 • Art Units: 3731 3734 3771 3773

This examiner grants 55% of resolved cases

Performance Statistics

54.9%
Allow Rate
-15.1% vs TC avg
297
Total Applications
+29.0%
Interview Lift
2001
Avg Prosecution Days
Based on 293 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
25.9%
§102 Novelty
46.2%
§103 Obviousness
14.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17970257 ARTICULATING ULTRASONIC SURGICAL INSTRUMENTS HAVING DISTALLY POSITIONED TRANSDUCERS Final Rejection Covidien LP
18561684 Vascular Prosthesis With Drawn Filled Tubes Non-Final OA MicroVention, Inc.

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