Prosecution Insights
Last updated: October 25, 2026

Christopher P Ellis, USPTO Patent Examiner

Listed by the USPTO as ELLIS, CHRISTOPHER P

Tech Center 3600 • Art Units: 3642 3643 3644

This examiner grants 82% of resolved cases

Analysis

ELLIS, CHRISTOPHER P works in tech center 3600 and art unit 3642. The record reports 768 resolved cases, an allowance rate of 81.9%, and a median of 942 days to allowance. Interviews correspond to a 0.7% lift in the allowance rate.

The substantial case history shows that allowance is a frequent outcome, while the median timeline indicates that applicants should still plan for meaningful prosecution duration. The interview lift is minimal, so counsel may wish to reserve interviews for matters where direct clarification has value independent of any expected allowance effect.

Beta Air LLC, Jetzero Inc., and Ubicquia Inc. are the leading companies. BRAKE HUGHES BELLERMANN LLP - BETA, Grüneberg Global IP, PLLC, and SCHOX PC are the leading firms. These participants identify recurring prosecution contexts.

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

Performance Statistics

81.9%
Allow Rate
+29.9% vs TC avg
779
Total Applications
+0.7%
Interview Lift
942
Avg Prosecution Days
Based on 768 resolved cases, 2023–2026

Rejection Statute Breakdown

1.5%
§101 Eligibility
32.8%
§102 Novelty
34.2%
§103 Obviousness
15.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18902344 MAGNETIC LOCKING SYSTEM OF AN ELECTRIC AIRCRAFT ROTOR AND METHODS THEREOF Non-Final OA BETA AIR LLC
19040350 MODULAR BLENDED WING BODY (BWB) AIRCRAFT AND METHOD OF MANUFACTURE Non-Final OA JetZero, Inc.
17680186 AUTONOMOUS PLACEMENT OF AN AERIALLY-MOUNTABLE ELECTRONIC DEVICE Final Rejection Ubicquia, Inc.
18835520 AMBULATORY PEST TRAPPING DEVICE Non-Final OA Kuraray Trading Co., Ltd.

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Frequently Asked Questions

What is examiner Christopher P Ellis's allowance rate?

81.9% of resolved applications examined by Christopher P Ellis were allowed (768 resolved cases), compared with 67.2% across Art Unit 3642 over the last five years.

Does an interview help with examiner Christopher P Ellis?

This examiner's interview lift is +0.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Christopher P Ellis take to allow a patent?

Applications allowed by Christopher P Ellis took 942 days on average from filing to allowance.

Which art unit does examiner Christopher P Ellis work in?

Christopher P Ellis examines applications in Art Unit 3642 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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