Prosecution Insights
Last updated: October 26, 2026

Erin L Colello, USPTO Patent Examiner

Listed by the USPTO as COLELLO, ERIN L

Tech Center 3700 • Art Units: 3731 3734 3771

This examiner grants 34% of resolved cases

Analysis

COLELLO, ERIN L is a USPTO patent examiner in tech center 3700 and art unit 3731. The profile covers 441 resolved cases, with an allowance rate of 33.6%, an interview lift of 65.6%, and a median of 1857 days to allowance. The record combines a lower allowance rate with a strong positive interview association, making interview preparation a potentially important part of prosecution strategy.

The listed company is Rush University Medical Center. No firms are listed in the available profile. Practitioners handling applications in this docket may therefore rely more heavily on examiner-specific prosecution review and the application record when selecting counsel and planning responses.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

33.6%
Allow Rate
-36.4% vs TC avg
441
Total Applications
+65.6%
Interview Lift
1857
Avg Prosecution Days
Based on 441 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
21.1%
§102 Novelty
48.5%
§103 Obviousness
22.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17029113 Focal Pressure Applicator to Cease Bleeding Non-Final OA Rush University Medical Center

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Frequently Asked Questions

What is examiner Erin L Colello's allowance rate?

33.6% of resolved applications examined by Erin L Colello were allowed (441 resolved cases), compared with 63.1% across Art Unit 3731 over the last five years.

Does an interview help with examiner Erin L Colello?

This examiner's interview lift is +65.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Erin L Colello take to allow a patent?

Applications allowed by Erin L Colello took 1,857 days on average from filing to allowance.

Which art unit does examiner Erin L Colello work in?

Erin L Colello examines applications in Art Unit 3731 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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