Prosecution Insights
Last updated: October 27, 2026

Daniel P Cahn, USPTO Patent Examiner

Listed by the USPTO as CAHN, DANIEL P

Tech Center 3600 • Art Units: 3634 3636 3671

This examiner grants 54% of resolved cases

Analysis

Daniel P. Cahn has an allowance rate of 53.6% based on 740 resolved cases in Tech Center 3600. In Art Unit 3634, the median days to allowance is 1130, providing a baseline for the expected duration of the prosecution process. These figures indicate a moderate likelihood of success and a typical pace of examination for applications in his docket.

The interview lift of 69.9% is exceptionally high, suggesting that direct engagement with the examiner is an extremely effective strategy for increasing the 53.6% base allowance rate. This lift indicates that interviews are associated with a very large improvement in the probability of a grant. His top companies include Pure Safety Group Inc., Mountain Hardwear Inc., and Liv Lifestyle Co.

Firms such as Cherson Feldenkrais IP Law Firm LLP, IPro, PLLC, and JCIPRNET are among the most active representatives in his records. The 1130-day median and 69.9% lift are the most defining metrics for his prosecution profile in Tech Center 3600. Practitioners should prioritize interviews as a central tactic to maximize the chances of success for their clients.

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

Performance Statistics

53.6%
Allow Rate
+1.6% vs TC avg
760
Total Applications
+69.9%
Interview Lift
1130
Avg Prosecution Days
Based on 740 resolved cases, 2023–2026

Rejection Statute Breakdown

2.1%
§101 Eligibility
26.9%
§102 Novelty
30.8%
§103 Obviousness
35.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18889877 PORTABLE LOADING DOCK Non-Final OA Ballymore Company, Inc.

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Frequently Asked Questions

What is examiner Daniel P Cahn's allowance rate?

53.6% of resolved applications examined by Daniel P Cahn were allowed (740 resolved cases), compared with 40.8% across Art Unit 3634 over the last five years.

Does an interview help with examiner Daniel P Cahn?

This examiner's interview lift is +69.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Daniel P Cahn take to allow a patent?

Applications allowed by Daniel P Cahn took 1,130 days on average from filing to allowance.

Which art unit does examiner Daniel P Cahn work in?

Daniel P Cahn examines applications in Art Unit 3634 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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