Prosecution Insights
Last updated: October 26, 2026

Samuel Joseph Marrison, USPTO Patent Examiner

Listed by the USPTO as MARRISON, SAMUEL JOSEPH

Tech Center 3700 • Art Units: 3783

This examiner grants 69% of resolved cases

Analysis

MARRISON, SAMUEL JOSEPH is assigned to tech center 3700 and art unit 3783. The profile covers 51 resolved cases, with a 68.6% allowance rate and a 35.2% interview lift. The median time to allowance is 1465 days, making timing a material consideration for applicants and counsel.

Listed companies include Amgen Inc., Boston Scientific Corporation, and Roche Diabetes Care Inc. Listed firms include MARSHALL, GERSTEIN & BORUN LLP, SUGHRUE MION, PLLC, and Bayramoglu Law Offices LLC. The interview result supports deliberate use of examiner interviews during prosecution.

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

Performance Statistics

68.6%
Allow Rate
-1.4% vs TC avg
101
Total Applications
+35.2%
Interview Lift
1465
Avg Prosecution Days
Based on 51 resolved cases, 2023–2026

Rejection Statute Breakdown

1.0%
§101 Eligibility
23.8%
§102 Novelty
51.9%
§103 Obviousness
19.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17617837 REPOSITIONABLE MEDICAL TUBE WITH ULTRASONICALLY-DETECTABLE CUFF Non-Final OA THE REGENTS OF THE UNIVERSITY OF MICHIGAN
17479948 PRESSURE VALVE FOR MEDICAL DEVICES AND METHODS OF USE Non-Final OA Boston Scientific Scimed, Inc.
17442889 A FLUID PRODUCT INJECTION DEVICE Non-Final OA APTAR FRANCE SAS
18767796 SYSTEM AND METHOD FOR A CONSTANT FORCE SYRINGE PUMP ACCOMODATING SYRINGES OF DIFFERENT SIZES Non-Final OA KORU Medical Systems, Inc.

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Frequently Asked Questions

What is examiner Samuel Joseph Marrison's allowance rate?

68.6% of resolved applications examined by Samuel Joseph Marrison were allowed (51 resolved cases), compared with 67.3% across Art Unit 3783 over the last five years.

Does an interview help with examiner Samuel Joseph Marrison?

This examiner's interview lift is +35.2 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Samuel Joseph Marrison take to allow a patent?

Applications allowed by Samuel Joseph Marrison took 1,465 days on average from filing to allowance.

Which art unit does examiner Samuel Joseph Marrison work in?

Samuel Joseph Marrison examines applications in Art Unit 3783 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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