Prosecution Insights
Last updated: October 25, 2026

Neil P Hammell, USPTO Patent Examiner

Listed by the USPTO as HAMMELL, NEIL P

Tech Center 1600 • Art Units: 1600 1634 1635 1636 1681

This examiner grants 35% of resolved cases

Analysis

Neil P. Hammell is an examiner in Art Unit 1600 of Tech Center 1600. The examiner has 361 resolved cases and an allowance rate of 34.6%. The median time to allowance is 1233 days. This 34.6% allowance rate is relatively low, suggesting a rigorous examination standard.

The interview lift is 43.0%, which is a substantial increase over the base 34.6% allowance rate. This high lift suggests that interviews are a critical component of a successful prosecution strategy with this examiner. Top companies include University of Florida Research Foundation Inc., California Institute of Technology, and Friedrich Miescher Institute For Biomedical Research. These entities are often represented by firms like ALSTON & BIRD LLP, Hoffmann & Baron LLP, and HOXIE & ASSOCIATES LLC.

Practitioners should anticipate a long pendency, as the median time to allowance is 1233 days. Given the 43.0% interview lift, applicants are strongly encouraged to engage in direct dialogue to improve their chances. The 361 resolved cases provide a robust data set for these strategic conclusions.

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

Performance Statistics

34.6%
Allow Rate
-25.4% vs TC avg
386
Total Applications
+43.0%
Interview Lift
1233
Avg Prosecution Days
Based on 361 resolved cases, 2023–2026

Rejection Statute Breakdown

15.4%
§101 Eligibility
8.2%
§102 Novelty
29.8%
§103 Obviousness
34.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17428749 METHODS FOR TARGETED TREATMENT AND PREDICTION OF PATIENT SURVIVAL IN CANCER Non-Final OA University of Florida Research Foundation, Incorporated
17264734 ANTIBIOTIC SUSCEPTIBILITY OF MICROORGANISMS AND RELATED MARKERS, COMPOSITIONS, METHODS AND SYSTEMS Final Rejection California Institute of Technology
17996276 USE OF AN ORPHAN MOTIF TO INCREASE EXPRESSION OF A HETEROLOGOUS TRANSGENE Non-Final OA FRIEDRICH MIESCHER INSTITUTE FOR BIOMEDICAL RESEARCH
18294325 COMPOSITIONS AND METHODS FOR TREATING CMT1A OR CMT1E DISEASES WITH RNAI MOLECULES TARGETING PMP22 Non-Final OA INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM)
17781480 METHODS FOR IDENTIFYING MICROBES IN A CLINICAL AND NON-CLINICAL SETTING Final Rejection Biomiris Capital Group B.V.

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Who Appears Before This Examiner

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Frequently Asked Questions

What is examiner Neil P Hammell's allowance rate?

34.6% of resolved applications examined by Neil P Hammell were allowed (361 resolved cases), compared with 37.3% across Art Unit 1600 over the last five years.

Does an interview help with examiner Neil P Hammell?

This examiner's interview lift is +43.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Neil P Hammell take to allow a patent?

Applications allowed by Neil P Hammell took 1,233 days on average from filing to allowance.

Which art unit does examiner Neil P Hammell work in?

Neil P Hammell examines applications in Art Unit 1600 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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