Prosecution Insights
Last updated: October 25, 2026

Troy Chambers, USPTO Patent Examiner

Listed by the USPTO as CHAMBERS, TROY

Tech Center 3600 • Art Units: 3641 3658

This examiner grants 60% of resolved cases

Analysis

CHAMBERS, TROY has 328 resolved cases, an allowance rate of 60.4%, and a median of 1235 days to allowance. The examiner is assigned to Tech Center 3600 and art unit 3641. The 4.0% interview lift indicates only a small measured association in the available record.

The listed companies are Kawasaki Railcar Manufacturing Co. Ltd. and Traila AG. GrowIP Law Group LLC and Xsensus are the listed firms. The limited company and firm concentration gives practitioners a focused set of comparable relationships to investigate when preparing matters for this docket.

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

Performance Statistics

60.4%
Allow Rate
+8.4% vs TC avg
335
Total Applications
+4.0%
Interview Lift
1235
Avg Prosecution Days
Based on 328 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
40.9%
§102 Novelty
35.7%
§103 Obviousness
21.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19017635 Composite-rail formed by pushdown the P-main-rail with pushdown-device against the P-auxiliary-rail Non-Final OA Individual inventor
18879345 FIXED-TRACK TRANSPORT DEVICE Non-Final OA Individual inventor
18867452 TRAIN SET Non-Final OA KAWASAKI RAILCAR MANUFACTURING CO., LTD.
18864614 COMPUTER-IMPLEMENTED METHOD AND CONTROL DEVICE FOR DETERMINING A REAL TIME STEERING ANGLE Non-Final OA Traila AG

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Frequently Asked Questions

What is examiner Troy Chambers's allowance rate?

60.4% of resolved applications examined by Troy Chambers were allowed (328 resolved cases), compared with 65.5% across Art Unit 3641 over the last five years.

Does an interview help with examiner Troy Chambers?

This examiner's interview lift is +4.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Troy Chambers take to allow a patent?

Applications allowed by Troy Chambers took 1,235 days on average from filing to allowance.

Which art unit does examiner Troy Chambers work in?

Troy Chambers examines applications in Art Unit 3641 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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