Prosecution Insights
Last updated: October 01, 2026

Examiner: CHAMBERS, TROY

Tech Center 3600 • Art Units: 3641 3658

This examiner grants 60% of resolved cases

Analysis

Troy Chambers is an examiner in Tech Center 3600 and Art Unit 3641. The data includes 327 resolved cases. The allowance rate is 60.2 percent, which indicates the frequency of granted patents. The median days to allowance is 1235, serving as a benchmark for the duration of the grant process. This 1235 day figure is a key timing metric for applicants.

The interview lift is 4.1 percent. This figure suggests that an interview is associated with a 4.1 percent change in the probability of allowance. With 327 resolved cases, this lift provides a look at the impact of verbal communication. The 60.2 percent allowance rate and the 1235 median days to allowance are the primary figures for developing a prosecution strategy.

The Art Unit 3641 designation and the Tech Center 3600 location form the basis for the current statistical profile. The 60.2 percent allowance rate provides a baseline for success, while the 4.1 percent interview lift highlights the impact of direct negotiation. These 327 resolved cases define the current data for this examiner.

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

Performance Statistics

60.2%
Allow Rate
+8.2% vs TC avg
329
Total Applications
+4.1%
Interview Lift
1235
Avg Prosecution Days
Based on 327 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
41.1%
§102 Novelty
35.5%
§103 Obviousness
21.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18939600 RAIL VEHICLE Non-Final OA Hitachi, Ltd.

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