Prosecution Insights
Last updated: October 27, 2026

Colin T Sakamoto, USPTO Patent Examiner

Listed by the USPTO as SAKAMOTO, COLIN T

Tech Center 3700 • Art Units: 3737 3768 3793 3798

This examiner grants 67% of resolved cases

Analysis

SAKAMOTO, COLIN T is assigned to Tech Center 3700 and Art Unit 3737. The profile covers 483 resolved cases, with a 66.7% allowance rate. The 1269-day median to allowance indicates that prosecution commonly extends over a substantial period, making claim development and response timing important considerations for applicants.

Interviews are associated with a 25.0% lift in allowance outcomes. That relationship supports using examiner interviews as part of a deliberate prosecution strategy, particularly when claim scope or technical distinctions require clarification. The listed company portfolio includes Mayo Foundation for Medical Education and Research, Siemens Healthineers AG, and Shenzhen Mindray Bio-Medical Electronics Co., Ltd. Frequently appearing firms include Bookoff McAndrews, PLLC, DORITY & MANNING, P.A., and FOLEY & LARDNER LLP.

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

Performance Statistics

66.7%
Allow Rate
-3.3% vs TC avg
508
Total Applications
+25.0%
Interview Lift
1269
Avg Prosecution Days
Based on 483 resolved cases, 2023–2026

Rejection Statute Breakdown

7.6%
§101 Eligibility
11.2%
§102 Novelty
39.8%
§103 Obviousness
35.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19109007 Device for Detecting Magnetic Signals Generated by a Beating Heart Non-Final OA Robert Bosch GmbH
19099889 METHODS TO RECONSTRUCT 3D IMAGE/MAP FOR THE STIFFNESS OF SOFT TISSUES Non-Final OA MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCH
18742093 BIOPSY EQUIPMENT, SUPPORT METHOD AND BIOPSY DEVICE Non-Final OA Siemens Healthineers AG
19371236 APPARATUS AND METHOD FOR CONTROLLING MOVEMENT OF ULTRASONIC WAVE GENERATING UNIT Non-Final OA JEISYS MEDICAL INC.

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Frequently Asked Questions

What is examiner Colin T Sakamoto's allowance rate?

66.7% of resolved applications examined by Colin T Sakamoto were allowed (483 resolved cases), compared with 0.0% across Art Unit 3737 over the last five years.

Does an interview help with examiner Colin T Sakamoto?

This examiner's interview lift is +25.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Colin T Sakamoto take to allow a patent?

Applications allowed by Colin T Sakamoto took 1,269 days on average from filing to allowance.

Which art unit does examiner Colin T Sakamoto work in?

Colin T Sakamoto examines applications in Art Unit 3737 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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