Prosecution Insights
Last updated: October 26, 2026

Erin E Mcgrath, USPTO Patent Examiner

Listed by the USPTO as MCGRATH, ERIN E

Tech Center 4100 • Art Units: 3742 3761 3771 3796 4100

This examiner grants 60% of resolved cases

Analysis

Erin E. McGrath is an examiner in Tech Center 4100, assigned to Art Unit 3742. She has overseen 448 resolved cases, resulting in an allowance rate of 60.3 percent. A notable aspect of her data is the interview lift of 28.4 percent. This positive figure indicates that cases involving an interview have a significantly higher probability of allowance compared to the baseline rate of 60.3 percent, suggesting that direct engagement is a highly effective strategy.

The median time to allowance for applications under her review is 1298 days. This duration provides a benchmark for applicants to estimate the length of the prosecution cycle in Art Unit 3742. Frequent participants in her docket include Boston Scientific Corporation, Covidien L.P., and Terumo Corporation. These companies, along with firms like SCHWEGMAN LUNDBERG & WOESSNER, P.A., Ballard Spahr LLP, and BUCHANAN, INGERSOLL & ROONEY PC, navigate a 60.3 percent allowance environment.

The 28.4 percent interview lift is a critical metric for strategy, as it demonstrates the substantial benefit of verbal negotiation with this examiner. With 448 resolved cases, the examiner has an established pattern of dispositions. The 1298 days median pendency reflects the typical timeframe for reaching a successful outcome, which practitioners should consider when managing their prosecution timelines.

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

Performance Statistics

60.3%
Allow Rate
At TC average
485
Total Applications
+28.4%
Interview Lift
1298
Avg Prosecution Days
Based on 448 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
15.5%
§102 Novelty
48.8%
§103 Obviousness
33.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17785494 SYSTEM AND METHOD FOR CONTROLLING AN ULTRASONIC SURGICAL SYSTEM Final Rejection Covidien LP
17867256 GASKET WITH EXTERNAL SEALING FEATURES FOR INTRODUCER SHEATH Non-Final OA Boston Scientific Scimed, Inc.
18899278 MEDICAL DEVICE Final Rejection TERUMO KABUSHIKI KAISHA
18839526 SYSTEM AND METHOD FOR ALIGNING MOVEMENT DIRECTION OF INTERVENTIONAL DEVICE IN IMAGE AND CONTROL DIRECTION OF COMMANDS ENTERED BY USER Final Rejection KONINKLIJKE PHILIPS N.V.
18280420 INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND PROGRAM Final Rejection THE UNIVERSITY OF TOKYO
18828650 ULTRASONIC TRANSDUCER, ULTRASONIC TREATMENT TOOL AND METHOD OF PRODUCING ULTRASONIC TRANSDUCER Final Rejection Olympus Medical Systems Corp.
18371181 Instrument Delivery System with Antithrombogenic Features Non-Final OA Becton, Dickinson and Company

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Frequently Asked Questions

What is examiner Erin E Mcgrath's allowance rate?

60.3% of resolved applications examined by Erin E Mcgrath were allowed (448 resolved cases), compared with 0.0% across Art Unit 3742 over the last five years.

Does an interview help with examiner Erin E Mcgrath?

This examiner's interview lift is +28.4 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 E Mcgrath take to allow a patent?

Applications allowed by Erin E Mcgrath took 1,298 days on average from filing to allowance.

Which art unit does examiner Erin E Mcgrath work in?

Erin E Mcgrath examines applications in Art Unit 3742 in Tech Center 4100.

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