Prosecution Insights
Last updated: October 27, 2026

Frances F Hamilton, USPTO Patent Examiner

Listed by the USPTO as HAMILTON, FRANCES F

Tech Center 3700 • Art Units: 3743 3749 3762

This examiner grants 54% of resolved cases

Analysis

Frances F. Hamilton is an examiner in Art Unit 3743 of Tech Center 3700. The examiner has 664 resolved cases and an allowance rate of 53.8%. The median time to allowance is 1410 days. This 53.8% rate indicates a moderately difficult prosecution path for applicants.

The interview lift is 38.8%, which is a significant figure suggesting that interviews are a very effective strategy. Top companies include Volkswagen AG, Daikin Industries Ltd., and Q-Pac Systems Inc. These applicants are frequently represented by firms such as BIRCH STEWART KOLASCH & BIRCH, LLP and Muncy, Geissler, Olds & Lowe, P.C.

Practitioners should factor the 1410 days median pendency into their planning. The 38.8% interview lift is a strong reason to engage in direct dialogue with the examiner to improve the 53.8% base allowance rate. With 664 resolved cases, these metrics provide a solid foundation for predicting outcomes in this art unit.

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

Performance Statistics

53.8%
Allow Rate
-16.2% vs TC avg
685
Total Applications
+38.8%
Interview Lift
1410
Avg Prosecution Days
Based on 664 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
16.5%
§102 Novelty
51.3%
§103 Obviousness
29.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17685685 INDOOR UNIT OF AIR CONDITIONER Non-Final OA DAIKIN INDUSTRIES, LTD.

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Frequently Asked Questions

What is examiner Frances F Hamilton's allowance rate?

53.8% of resolved applications examined by Frances F Hamilton were allowed (664 resolved cases), compared with 0.0% across Art Unit 3743 over the last five years.

Does an interview help with examiner Frances F Hamilton?

This examiner's interview lift is +38.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Frances F Hamilton take to allow a patent?

Applications allowed by Frances F Hamilton took 1,410 days on average from filing to allowance.

Which art unit does examiner Frances F Hamilton work in?

Frances F Hamilton examines applications in Art Unit 3743 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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