Prosecution Insights
Last updated: October 26, 2026

Brian A Zimmerman, USPTO Patent Examiner

Listed by the USPTO as ZIMMERMAN, BRIAN A

Tech Center 3700 • Art Units: 2635 2683 2686 2688 3796

This examiner grants 18% of resolved cases

Analysis

Brian A. Zimmerman handles cases in Tech Center 3700 and Art Unit 2635, with 33 resolved cases currently recorded. The data reflects a challenging environment, evidenced by an allowance rate of 18.2 percent. For those cases that do reach allowance, the median days to allowance is 934. This timeline requires applicants to be prepared for a rigorous examination process.

The interview lift of 18.5 percent is notable, as it suggests a significant increase in the probability of success. This indicates that for applicants like Samsung Electronics Co., Ltd., Apple Inc., and Honor Device Co., Ltd., personal engagement with the examiner is a critical tactic. Firms such as Jefferson IP Law, LLP, KPPB LLP, and TROP, PRUNER & HU, P.C. frequently manage these dockets. Given the 18.2 percent baseline allowance rate, utilizing the 18.5 percent lift is a primary strategy for advancement.

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

Performance Statistics

18.2%
Allow Rate
-51.8% vs TC avg
46
Total Applications
+18.5%
Interview Lift
934
Avg Prosecution Days
Based on 33 resolved cases, 2023–2026

Rejection Statute Breakdown

2.1%
§101 Eligibility
16.8%
§102 Novelty
56.6%
§103 Obviousness
14.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18827570 HANDHELD ELECTRONIC DEVICE Non-Final OA Apple Inc.
18881067 IMAGE DRAWING METHOD AND ELECTRONIC DEVICE Non-Final OA Honor Device Co., Ltd.
18633058 SYSTEM AND METHOD FOR COMMUNICATING WITH A VEHICLE Final Rejection DENSO CORPORATION
18697858 A Wirelessly Powered, Battery-Less Closed Loop Biopotential Recording IC for Implantable Medical Applications Non-Final OA The Regents of the University of California
18958918 OVER THE AIR UPDATE FOR IOT DEVICES, SUCH AS WIRELESS ELECTRONIC LOCKS Final Rejection ASSA ABLOY Americas Residential

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Brian A Zimmerman's allowance rate?

18.2% of resolved applications examined by Brian A Zimmerman were allowed (33 resolved cases), compared with 90.3% across Art Unit 2635 over the last five years.

Does an interview help with examiner Brian A Zimmerman?

This examiner's interview lift is +18.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Brian A Zimmerman take to allow a patent?

Applications allowed by Brian A Zimmerman took 934 days on average from filing to allowance.

Which art unit does examiner Brian A Zimmerman work in?

Brian A Zimmerman examines applications in Art Unit 2635 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month