Prosecution Insights
Last updated: October 27, 2026

Brendan A Hensel, USPTO Patent Examiner

Listed by the USPTO as HENSEL, BRENDAN A

Tech Center 3700 • Art Units: 1758 1799 3723 3752

This examiner grants 66% of resolved cases

Analysis

HENSEL, BRENDAN A is assigned to tech center 3700 and art unit 1758. The profile covers 298 resolved cases and reports an allowance rate of 66.4%. The median time to allowance is 975 days, while interviews correspond with a 28.7% lift. The data supports treating examiner interaction as a meaningful part of prosecution planning.

The represented companies are The Procter & Gamble Company, Microjet Technology Co., Ltd., and Sony Group Corporation. The listed firms are BIRCH STEWART KOLASCH & BIRCH, LLP, CHIP LAW GROUP, and Keller Preece PLLC. Practitioners may use interviews to test focused claim distinctions and then carry the agreed technical framing into the written response.

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

Performance Statistics

66.4%
Allow Rate
-3.6% vs TC avg
342
Total Applications
+28.7%
Interview Lift
975
Avg Prosecution Days
Based on 298 resolved cases, 2023–2026

Rejection Statute Breakdown

3.8%
§101 Eligibility
18.2%
§102 Novelty
47.2%
§103 Obviousness
27.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17783538 ODOR PRESENTATION MODULE, ODOR PRESENTATION DEVICE, ODOR PRESENTATION SYSTEM, AND ODOR PRESENTATION METHOD Final Rejection SONY GROUP CORPORATION
18294302 SELF-CLEANING VACUUM CLEANER Non-Final OA Dyson Technology Limited
18733989 HOUSING FOR VOLATILE COMPOSITION DISPENSER Non-Final OA The Procter & Gamble Company
18656643 LIGHT ACTIVATED CLEANING COMPOSITION Non-Final OA The Procter & Gamble Company
18128274 REFILLABLE VOLATILE COMPOSITION DISPENSER WITH RELEASABLE INTERLOCK Final Rejection The Procter & Gamble Company
18579554 A HYBRID DISINFECTION LIGHTING DEVICE Non-Final OA SIGNIFY HOLDING B.V.
18624780 PHOTOCATALYST COMPOSITION, IODINE SOLUTION, PHOTOCATALYST DISPERSION LIQUID, ANTIBACTERIAL ACTIVATION METHOD, AND ANTIBACTERIAL ACTIVATION APPARATUS Non-Final OA Sharp Kabushiki Kaisha
18204724 PROCESS AND DEVICE FOR STERILIZING GAS FILTRATION MEANS, IN PARTICULAR BLOWING AIR Non-Final OA SIDEL PARTICIPATIONS
18657251 CONTAINER STERILIZATION DEVICE USING PULSED LIGHT Final Rejection IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
18207017 VOLATILE MATERIAL DISPENSER Non-Final OA S. C. JOHNSON & SON, INC.
17056393 PROTECTION OF BIOLOGICALLY ACTIVE MOLECULES DURING RADIATION STERILIZATION Non-Final OA Qiagen Sciences LLC

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Frequently Asked Questions

What is examiner Brendan A Hensel's allowance rate?

66.4% of resolved applications examined by Brendan A Hensel were allowed (298 resolved cases), compared with 38.8% across Art Unit 1758 over the last five years.

Does an interview help with examiner Brendan A Hensel?

This examiner's interview lift is +28.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Brendan A Hensel take to allow a patent?

Applications allowed by Brendan A Hensel took 975 days on average from filing to allowance.

Which art unit does examiner Brendan A Hensel work in?

Brendan A Hensel examines applications in Art Unit 1758 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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