Prosecution Insights
Last updated: October 02, 2026

Examiner: KOEHLER, CHRISTOPHER M

Tech Center 3700 • Art Units: 2834 3726

This examiner grants 60% of resolved cases

Analysis

Christopher M. Koehler is an examiner in Tech Center 3700 and Art Unit 2834. He has a record of 671 resolved cases, which provides a basis for analyzing his prosecution style. His allowance rate is 60.4 percent, indicating a moderate level of difficulty for applicants.

The interview lift is 25.9 percent, suggesting that interviews are an effective way to improve the chances of an allowance. This 25.9 percent lift is a factor to consider when an application faces a rejection, as it represents an increase over the 60.4 percent baseline. Practitioners should use this data to justify the time of an interview.

The median days to allowance is 1301, which is the pendency period. This 1301-day median reflects the time investment required to reach a grant in Art Unit 2834. With 671 resolved cases, the 60.4 percent allowance rate and the 25.9 percent lift are key metrics for navigating the prosecution process in Tech Center 3700.

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

Performance Statistics

60.4%
Allow Rate
-9.6% vs TC avg
673
Total Applications
+25.9%
Interview Lift
1301
Avg Prosecution Days
Based on 671 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
30.0%
§102 Novelty
46.6%
§103 Obviousness
19.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18796510 HYDRAULIC POWER TOOL Non-Final OA MILWAUKEE ELECTRIC TOOL CORPORATION

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