Prosecution Insights
Last updated: October 27, 2026

Brian L Casler, USPTO Patent Examiner

Listed by the USPTO as CASLER, BRIAN L

Tech Center 3700 • Art Units: 3700 3737 3791 3799

This examiner grants 79% of resolved cases

Analysis

CASLER, BRIAN L is assigned to tech center 3700 and art unit 3700. The profile contains 53 resolved cases, a 79.2% allowance rate, and a 1313-day median to allowance. Its 21.4% interview lift suggests that interviews have been associated with improved allowance outcomes within this recorded group.

The principal companies are Boston Scientific Corporation, Elekta AB, and Wave Neuroscience Inc. The leading firms are Brake Hughes Bellermann LLP, Antheros Legal Advisors LLP, and ARC PATENTS. Because the resolved-case volume is limited, practitioners should treat the metrics as a focused record and supplement them with application-specific prosecution analysis.

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

Performance Statistics

79.2%
Allow Rate
+9.2% vs TC avg
110
Total Applications
+21.4%
Interview Lift
1313
Avg Prosecution Days
Based on 53 resolved cases, 2023–2026

Rejection Statute Breakdown

9.3%
§101 Eligibility
27.3%
§102 Novelty
35.2%
§103 Obviousness
23.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18526514 Respiratory Measurement System Non-Final OA Apple Inc.
18760670 DISPOSABLE FURLOW INSERTION DEVICE WITH COLLAPSIBLE PUSHER Non-Final OA Boston Scientific Medical Device Limited
18068127 IMPLANTABLE INFLATABLE DEVICE Non-Final OA Boston Scientific Scimed, Inc.
18068108 ELECTRONIC IMPLANTABLE PENILE PROSTHESIS WITH PRESSURE REGULATION AND OTHER FUNCTIONS Non-Final OA Boston Scientific Scimed, Inc.
17655937 PUMP ASSEMBLY FOR AN IMPLANTABLE INFLATABLE DEVICE Non-Final OA Boston Scientific Scimed, Inc.
17655952 FLUID CONTROL SYSTEM FOR AN IMPLANTABLE INFLATABLE DEVICE Final Rejection Boston Scientific Scimed, Inc.
17653225 INFLATABLE MEDICAL IMPLANT HAVING A PRESSURE CALIBRATION SYSTEM Non-Final OA Boston Scientific Scimed, Inc.
18542354 System and Method for Carbon Particle Therapy for Treatment of Cardiac Arrhythmias and Other Diseases Non-Final OA Mayo Foundation for Medical Education and Research
18233039 USE OF FIELDS BOUNDING BOX TO REDUCE DOSE CALCULATION COMPUTATIONAL EFFORT Final Rejection Siemens Healthineers International AG
18396386 SURFACE BRACHYTHERAPY DEVICE, APPLICATOR, AND METHODS THEREFOR Non-Final OA THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE
18413320 WEARABLE DEVICE DETECTING OBSTRUCTIVE SLEEP APNEA LEVEL INDEX AND INDEX DETERMINING METHOD THEREOF Non-Final OA PIXART IMAGING INC.
17051470 IMPROVED PERSONAL HEALTH DATA COLLECTION Final Rejection LMD IP, LLC
18571247 FEEDBACK-CONTROLLED DEVICE FOR GEOMAGNETIC ION CYCLOTRON RESONANCE Non-Final OA Non Ionizing Radiation Personal Shielding S.R.L.

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Frequently Asked Questions

What is examiner Brian L Casler's allowance rate?

79.2% of resolved applications examined by Brian L Casler were allowed (53 resolved cases), compared with 66.1% across Art Unit 3700 over the last five years.

Does an interview help with examiner Brian L Casler?

This examiner's interview lift is +21.4 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 L Casler take to allow a patent?

Applications allowed by Brian L Casler took 1,313 days on average from filing to allowance.

Which art unit does examiner Brian L Casler work in?

Brian L Casler examines applications in Art Unit 3700 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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