Prosecution Insights
Last updated: October 27, 2026

Catherine M Ferreira, USPTO Patent Examiner

Listed by the USPTO as FERREIRA, CATHERINE M

Tech Center 3700 • Art Units: 3732 3765

This examiner grants 40% of resolved cases

Analysis

FERREIRA, CATHERINE M has 453 resolved cases in Tech Center 3700 and art unit 3732. The allowance rate is 39.5%, the interview lift is 33.1%, and the median time to allowance is 1368 days. The record shows a lower allowance outcome, a meaningful interview effect, and an extended median timeline, supporting active management from the first substantive response.

The listed companies are Nike Inc., Spanx LLC, and Under Armour Inc. The listed firms are AKA CHAN LLP, GREER, BURNS & CRAIN, LTD, and Heer Law. Practitioners may benefit from entering interviews with specific claim revisions and technical explanations, while preserving a complete written record and evaluating prosecution alternatives as the case develops.

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

Performance Statistics

39.5%
Allow Rate
-30.5% vs TC avg
486
Total Applications
+33.1%
Interview Lift
1368
Avg Prosecution Days
Based on 453 resolved cases, 2023–2026

Rejection Statute Breakdown

6.3%
§101 Eligibility
16.2%
§102 Novelty
47.8%
§103 Obviousness
28.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19014433 FOOTWEAR STROBEL INCLUDING A SHANK, AN ARTICLE OF FOOTWEAR, AND A METHOD OF MANUFACTURING AN ARTICLE OF FOOTWEAR Non-Final OA NIKE, Inc.
18610178 Garment with Contiguously Woven Variable Stretch Zones Final Rejection Levi Strauss & Co.

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Frequently Asked Questions

What is examiner Catherine M Ferreira's allowance rate?

39.5% of resolved applications examined by Catherine M Ferreira were allowed (453 resolved cases), compared with 52.0% across Art Unit 3732 over the last five years.

Does an interview help with examiner Catherine M Ferreira?

This examiner's interview lift is +33.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Catherine M Ferreira take to allow a patent?

Applications allowed by Catherine M Ferreira took 1,368 days on average from filing to allowance.

Which art unit does examiner Catherine M Ferreira work in?

Catherine M Ferreira examines applications in Art Unit 3732 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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