Prosecution Insights
Last updated: October 02, 2026

Examiner: MARRISON, SAMUEL JOSEPH

Tech Center 3700 • Art Units: 3783

This examiner grants 69% of resolved cases

Analysis

Samuel Joseph Marrison is assigned to Art Unit 3783 in Tech Center 3700. With 48 resolved cases, the examiner maintains an allowance rate of 68.8 percent. This figure provides an indication of the typical outcome for applications processed in this unit, suggesting the frequency at which cases reach a grant. This baseline helps in assessing the overall difficulty of the examiner's docket.

The data shows a substantial interview lift of 40.2 percent, which is a significant impact of examiner interaction. This suggests that interviews are a critical component of a successful prosecution strategy and can shift the odds in favor of the applicant. The median days to allowance is 1455, reflecting the duration required to reach a granted patent. Practitioners should factor this timeline into their prosecution plans while prioritizing an interview to maximize the 40.2 percent lift. These metrics together suggest a prosecution style that is responsive to direct engagement.

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

Performance Statistics

68.8%
Allow Rate
-1.2% vs TC avg
96
Total Applications
+40.2%
Interview Lift
1455
Avg Prosecution Days
Based on 48 resolved cases, 2023–2026

Rejection Statute Breakdown

1.0%
§101 Eligibility
23.8%
§102 Novelty
54.1%
§103 Obviousness
18.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17479948 PRESSURE VALVE FOR MEDICAL DEVICES AND METHODS OF USE Non-Final OA Boston Scientific Scimed, Inc.
17665042 MEDICAL DEVICE WITH TACTILE INDICATION Final Rejection Roche Diabetes Care, Inc.
17617837 REPOSITIONABLE MEDICAL TUBE WITH ULTRASONICALLY-DETECTABLE CUFF Non-Final OA THE REGENTS OF THE UNIVERSITY OF MICHIGAN
17603437 INFUSION DEVICE HAVING A BRAKE DEVICE Final Rejection Fresenius Vial SAS
18097368 SAFETY NEEDLE DEVICE Non-Final OA Becton, Dickinson and Company
18288087 Implantable Device and Therapeutic System with Passive Oxygenation Final Rejection Sanofi
18267025 Electrode System, Electronic System, Drug Delivery Device, and a Method of Manufacturing an Electronic System Final Rejection Sanofi
17600654 Assembly for a Drug Delivery Device Non-Final OA Sanofi
17910675 PRESSURE MODULATED MOTOR TORQUE FOR INFUSION PUMP Non-Final OA ICU Medical, Inc.
18143577 INFUSION SYSTEM AND CATHETER FOR SUCH AN INFUSION SYSTEM Non-Final OA B. Braun Melsungen AG
17294243 ACTIVATION PREVENTION CAP ASSEMBLY Non-Final OA SHL MEDICAL AG
17559228 Methods And Compositions For Using Alternating Electric Fields In Gene Therapy Non-Final OA NOVOCURE GMBH
18247087 Dose Setting Assembly for a Medical Injection Device Non-Final OA Becton Dickinson France
17630270 DRUG DELIVERY DEVICE WITH CONFIGURABLE NEEDLE SHIELD ENGAGEMENT COMPONENTS AND RELATED METHODS Non-Final OA AMGEN INC.
17264139 INTERVENTIONAL DOSING SYSTEMS AND METHODS Non-Final OA AMGEN INC.
17822236 TIME MANAGEMENT FOR TIME-DEPENDENT THERAPY MANAGEMENT SYSTEMS, METHODS, AND DEVICES Non-Final OA Bigfoot Biomedical, Inc.
17426858 MEDICAL DELIVERY DEVICE AND METHOD FOR DELIVERING THERAPEUTIC AGENTS DIRECTLY INTO THE ANNULUS FIBROSUS OF AN INTERVERTEBRAL DISC Final Rejection DiscCath, LLC

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