Prosecution Insights
Last updated: October 26, 2026

Brian Keith Palmarchuk, USPTO Patent Examiner

Listed by the USPTO as PALMARCHUK, BRIAN KEITH

Tech Center 3600 • Art Units: 3669

This examiner grants 68% of resolved cases

Analysis

Brian Keith Palmarchuk operates in Art Unit 3669 of Tech Center 3600. He has resolved 28 cases, maintaining an allowance rate of 67.9 percent. The median days to allowance is 852, which provides a specific timeline for the progression of successful applications through the patent office. This 67.9 percent allowance rate defines the probability of issuance for resolved cases in his docket.

The data shows an interview lift of 16.9 percent, which indicates that direct communication is a productive strategy for resolving outstanding issues. This lift suggests that interviews are more likely to result in an allowance compared to cases without such interaction. Major companies such as Robert Bosch GmbH, Toyota Motor Corporation, and Panasonic Holdings Corporation are active in his docket.

Firms like OLIFF PLC, AMPACC Law Group, PLLC, and Fideli Law PLLC are the primary legal representatives appearing before this examiner. These firms navigate the 67.9 percent allowance rate to secure rights for their clients. The 16.9 percent interview lift and 852 median days to allowance are the primary metrics for practitioners to consider when developing prosecution strategies.

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

Performance Statistics

67.9%
Allow Rate
+15.9% vs TC avg
56
Total Applications
+16.9%
Interview Lift
852
Avg Prosecution Days
Based on 28 resolved cases, 2023–2026

Rejection Statute Breakdown

14.8%
§101 Eligibility
16.8%
§102 Novelty
49.0%
§103 Obviousness
18.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18996079 CONTROL DEVICE FOR A WINDSHIELD WIPER SYSTEM Non-Final OA Robert Bosch GmbH
18944289 METHOD FOR MEASURING AND ANALYZING A FOREST AREA FOR A FORESTRY VEHICLE Non-Final OA Deere & Company
19057644 CONTROL APPARATUS FOR FUEL CELL ELECTRIC VEHICLE Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
19029894 DRIVING ASSISTANCE SYSTEM AND DRIVING ASSISTANCE METHOD Final Rejection Panasonic Automotive Systems Co., Ltd.
19230305 VEHICLE CONTROL APPARATUS AND METHOD Non-Final OA KIA CORPORATION
18124944 INFORMATION DEVICE FOR PROVIDING INFORMATION ABOUT CHARGERS FOR CHARGING VEHICLE RECHARGEABLE BATTERY Final Rejection DENSO CORPORATION
18317151 INTUITIVE CONFIGURABLE MACHINE ATTACHMENT CONTROLS Non-Final OA Caterpillar Inc.
18357250 DATA-ANALYSIS-BASED CONTROL OPTIMIZATION FOR HOT-AIR BALLOON FLIGHT Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
18922193 MULTI-SOURCE ELECTRIFIED PROPULSION Non-Final OA Cummins Power Generation Inc.

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Frequently Asked Questions

What is examiner Brian Keith Palmarchuk's allowance rate?

67.9% of resolved applications examined by Brian Keith Palmarchuk were allowed (28 resolved cases), compared with 59.0% across Art Unit 3669 over the last five years.

Does an interview help with examiner Brian Keith Palmarchuk?

This examiner's interview lift is +16.9 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 Keith Palmarchuk take to allow a patent?

Applications allowed by Brian Keith Palmarchuk took 852 days on average from filing to allowance.

Which art unit does examiner Brian Keith Palmarchuk work in?

Brian Keith Palmarchuk examines applications in Art Unit 3669 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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