Prosecution Insights
Last updated: October 27, 2026

Brent J Andrews, USPTO Patent Examiner

Listed by the USPTO as ANDREWS, BRENT J

Tech Center 2800 • Art Units: 2858 2868

This examiner grants 78% of resolved cases

Analysis

ANDREWS, BRENT J works in Tech Center 2800 and Art Unit 2858. The record covers 319 resolved cases, a 78.1% allowance rate, and a median of 1154 days to allowance. Interviews show a 28.5% lift in the measured allowance outcome.

The listed companies are TDK Corporation, Taiwan Semiconductor Manufacturing Company, Ltd., and Nkt Hv Cables AB. The listed firms are Jones Day, OLIFF PLC, and POSZ LAW GROUP, PLC. The allowance result supports a defined prosecution baseline for client counseling. The median timing calls for planning beyond the initial examination stage, and the interview measure supports preparing substantive talking points before requesting examiner engagement.

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

Performance Statistics

78.1%
Allow Rate
+10.1% vs TC avg
340
Total Applications
+28.5%
Interview Lift
1154
Avg Prosecution Days
Based on 319 resolved cases, 2023–2026

Rejection Statute Breakdown

1.7%
§101 Eligibility
22.4%
§102 Novelty
60.3%
§103 Obviousness
13.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19035415 METHOD FOR MANUFACTURING MAGNETIC SENSOR AND MAGNETIC SENSOR Non-Final OA TDK Corporation
18517078 Defect Monitor Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.

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Frequently Asked Questions

What is examiner Brent J Andrews's allowance rate?

78.1% of resolved applications examined by Brent J Andrews were allowed (319 resolved cases), compared with 83.6% across Art Unit 2858 over the last five years.

Does an interview help with examiner Brent J Andrews?

This examiner's interview lift is +28.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Brent J Andrews take to allow a patent?

Applications allowed by Brent J Andrews took 1,154 days on average from filing to allowance.

Which art unit does examiner Brent J Andrews work in?

Brent J Andrews examines applications in Art Unit 2858 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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