Prosecution Insights
Last updated: October 27, 2026

Thomas C Barrett, USPTO Patent Examiner

Listed by the USPTO as BARRETT, THOMAS C

Tech Center 3700 • Art Units: 3775 3799

This examiner grants 12% of resolved cases

Analysis

Thomas C. Barrett works in Tech Center 3700 and Art Unit 3775. He has 17 resolved cases. His allowance rate is 11.8 percent. The median days to allowance for his granted patents is 1314. This 1314-day figure provides a timeline for applicants to expect when their cases are granted.

The interview lift for this examiner is 47.1 percent. This 47.1 percent lift is an increase when compared to the 11.8 percent baseline. It suggests that cases involving an interview have a higher probability of allowance than those that do not. For practitioners in Art Unit 3775, this data point indicates that direct communication is an effective strategy.

With 17 resolved cases, the data for this examiner is established. The allowance rate and median pendency describe the typical outcome and timing for his docket. The interview lift is a significant metric, showing a statistical benefit to conducting an interview during the prosecution process.

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

Performance Statistics

11.8%
Allow Rate
-58.2% vs TC avg
20
Total Applications
+47.1%
Interview Lift
1314
Avg Prosecution Days
Based on 17 resolved cases, 2023–2026

Rejection Statute Breakdown

5.2%
§101 Eligibility
19.0%
§102 Novelty
51.7%
§103 Obviousness
22.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17894308 LAUNDRY APPLIANCE HAVING AN ENCLOSED SUPPLEMENTAL HEAT EXCHANGE SPACE THAT SURROUNDS A ROTATING DRUM Final Rejection WHIRLPOOL CORPORATION

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Frequently Asked Questions

What is examiner Thomas C Barrett's allowance rate?

11.8% of resolved applications examined by Thomas C Barrett were allowed (17 resolved cases), compared with 72.3% across Art Unit 3775 over the last five years.

Does an interview help with examiner Thomas C Barrett?

This examiner's interview lift is +47.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Thomas C Barrett take to allow a patent?

Applications allowed by Thomas C Barrett took 1,314 days on average from filing to allowance.

Which art unit does examiner Thomas C Barrett work in?

Thomas C Barrett examines applications in Art Unit 3775 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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