Prosecution Insights
Last updated: October 26, 2026

Mary C Hibbert, USPTO Patent Examiner

Listed by the USPTO as HIBBERT, MARY C

Tech Center 3700 • Art Units: 3721 3724 3731

This examiner grants 67% of resolved cases

Analysis

HIBBERT, MARY C has resolved 309 cases in tech center 3700 and art unit 3721. The allowance rate is 66.7%, and interviews show a 26.4% lift. The median time to allowance is 1399 days. The data indicates that prosecution may extend over a long period, while interviews offer a meaningful avenue for advancing matters.

Covidien L.P., Tri-Pac, Inc., and Cilag GmbH International are the leading companies. AMIN WASSERMAN GURNANI LLP, EVERGREEN VALLEY LAW GROUP, and MCCOY RUSSELL LLP are the listed firms. The profile is relevant to medical-device and related technology applicants developing amendment and interview plans.

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

Performance Statistics

66.7%
Allow Rate
-3.3% vs TC avg
329
Total Applications
+26.4%
Interview Lift
1399
Avg Prosecution Days
Based on 309 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
21.0%
§102 Novelty
61.0%
§103 Obviousness
12.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18909766 ADAPTIVE ANTI-TWITCH ALGORITHM FOR POWERED SURGICAL DEVICES Non-Final OA Covidien LP
18644317 SURGICAL STAPLING END EFFECTOR COMPONENT WITH TIP HAVING VARYING BEND ANGLE Non-Final OA Cilag GmbH International

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Frequently Asked Questions

What is examiner Mary C Hibbert's allowance rate?

66.7% of resolved applications examined by Mary C Hibbert were allowed (309 resolved cases), compared with 0.0% across Art Unit 3721 over the last five years.

Does an interview help with examiner Mary C Hibbert?

This examiner's interview lift is +26.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Mary C Hibbert take to allow a patent?

Applications allowed by Mary C Hibbert took 1,399 days on average from filing to allowance.

Which art unit does examiner Mary C Hibbert work in?

Mary C Hibbert examines applications in Art Unit 3721 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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