Prosecution Insights
Last updated: October 26, 2026

Colman Thomas Welles, USPTO Patent Examiner

Listed by the USPTO as WELLES, COLMAN THOMAS

Tech Center 3700 • Art Units: 1612 3792

This examiner grants 27% of resolved cases

Analysis

WELLES, COLMAN THOMAS is a USPTO patent examiner in Tech Center 3700 and Art Unit 1612. The record includes 26 resolved cases and a 26.9% allowance rate. The median time to allowance is 1245 days. Interviews show a 65.7% lift, the strongest interview association in this profile. Applicants may therefore place substantial value on an interview that identifies an acceptable claim direction, while recognizing that the limited case volume reduces predictive certainty.

The leading companies are L'Oréal, Orthonu LLC, and BASF SE. The leading firms are Morgan, Lewis & Bockius LLP (WA), OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P., and OLIFF PLC. The technology mix includes cosmetics, medical applications, and chemicals. The low allowance baseline supports early, deliberate prosecution planning and careful preservation of fallback positions.

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

Performance Statistics

26.9%
Allow Rate
-43.1% vs TC avg
81
Total Applications
+65.7%
Interview Lift
1245
Avg Prosecution Days
Based on 26 resolved cases, 2023–2026

Rejection Statute Breakdown

2.4%
§101 Eligibility
12.4%
§102 Novelty
39.4%
§103 Obviousness
22.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18265453 MICROPARTICLE COMPOSITIONS COMPRISING TRIFLUDIMOXAZIN Final Rejection BASF SE
18263296 COMPOSITE FILLER, AND PRODUCT USING THE SAME Non-Final OA LG CHEM, LTD.
18255343 PESTICIDAL COMPOSITION Non-Final OA SUMITOMO CHEMICAL COMPANY, LIMITED
18253814 TAU-FLUVALINATE COMPOSITIONS Non-Final OA Adama Makhteshim Ltd.

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Frequently Asked Questions

What is examiner Colman Thomas Welles's allowance rate?

26.9% of resolved applications examined by Colman Thomas Welles were allowed (26 resolved cases), compared with 40.7% across Art Unit 1612 over the last five years.

Does an interview help with examiner Colman Thomas Welles?

This examiner's interview lift is +65.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Colman Thomas Welles take to allow a patent?

Applications allowed by Colman Thomas Welles took 1,245 days on average from filing to allowance.

Which art unit does examiner Colman Thomas Welles work in?

Colman Thomas Welles examines applications in Art Unit 1612 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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