Prosecution Insights
Last updated: October 02, 2026

Examiner: LANDRUM, EDWARD F

Tech Center 4100 • Art Units: 3700 3723 3724 3761 3763 4168

This examiner grants 37% of resolved cases

Analysis

Edward F. Landrum is an examiner in Tech Center 4100 and Art Unit 3700. He has 264 resolved cases. The allowance rate for these cases is 37.1 percent. The median days to allowance is 1225, providing a standard expectation for the duration of the process. These 264 resolved cases define the current prosecution landscape in his unit.

The interview lift is 18.9 percent, representing the increase in allowance probability over the 37.1 percent baseline. This 18.9 percent lift indicates that interviews are a helpful strategy for moving cases toward allowance. Practitioners should factor the 1225 day median pendency into their planning for the 264 cases he has resolved. The 37.1 percent allowance rate suggests that direct communication is beneficial in Tech Center 4100. The 264 resolved cases offer a clear view of his examination patterns.

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

Performance Statistics

37.1%
Allow Rate
-22.9% vs TC avg
281
Total Applications
+18.9%
Interview Lift
1225
Avg Prosecution Days
Based on 264 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
25.3%
§102 Novelty
45.5%
§103 Obviousness
27.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18858669 ELECTRIC TOOL Non-Final OA NEXRA Field Works Co., Ltd.

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