Prosecution Insights
Last updated: October 25, 2026

Hunter B Lonsberry, USPTO Patent Examiner

Listed by the USPTO as LONSBERRY, HUNTER B

Tech Center 3600 • Art Units: 2421 2424 2427 2623 3658 3663 3665 3667

This examiner grants 86% of resolved cases

Analysis

Hunter B. Lonsberry has managed 665 resolved cases in Art Unit 2421. The allowance rate for these cases is 86.3%. The median time to allowance is 983 days. The interview lift is 4.7%, which represents the statistical increase in the probability of allowance following an interview. These figures describe the prosecution environment in Tech Center 3600.

Ricoh Company, Ltd., Amtran Technology Co. Ltd., and Joy Global Surface Mining Inc. are the top companies in this examiner's record. The 86.3% allowance rate and the 983-day median pendency are key metrics for these applicants. Firms like CKC & Partners Co., LLC and Xsensus are active in this queue.

The 4.7% interview lift indicates that direct communication with the examiner correlates with a higher probability of allowance. Practitioners can use the 983-day median time to allowance to estimate the duration of the prosecution process. The 86.3% allowance rate provides a baseline for the likelihood of success. The 665 resolved cases offer a specific view of the examiner's historical performance.

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

Performance Statistics

86.3%
Allow Rate
+34.3% vs TC avg
671
Total Applications
+4.7%
Interview Lift
983
Avg Prosecution Days
Based on 665 resolved cases, 2023–2026

Rejection Statute Breakdown

8.3%
§101 Eligibility
22.9%
§102 Novelty
48.8%
§103 Obviousness
5.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19047603 ONLINE CONFERENCE SYSTEM, ONLINE CONFERENCE CONTROL METHOD, TERMINAL DEVICE AND ELECTRONIC DEVICE, READABLE MEDIUM Non-Final OA AmTRAN Technology Co., Ltd.
18638571 VIRTUAL FIELD-BASED TRACK PROTECTION FOR A MINING MACHINE Non-Final OA Joy Global Surface Mining Inc

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Frequently Asked Questions

What is examiner Hunter B Lonsberry's allowance rate?

86.3% of resolved applications examined by Hunter B Lonsberry were allowed (665 resolved cases), compared with 66.7% across Art Unit 2421 over the last five years.

Does an interview help with examiner Hunter B Lonsberry?

This examiner's interview lift is +4.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Hunter B Lonsberry take to allow a patent?

Applications allowed by Hunter B Lonsberry took 983 days on average from filing to allowance.

Which art unit does examiner Hunter B Lonsberry work in?

Hunter B Lonsberry examines applications in Art Unit 2421 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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