Seiberco Incorporated

Calculating rank

USPTO Granted Patents = 9

% Expired Patents = 22.2

Forward Citations = 126

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6 inventors (with patents filed for the assignee):

Ralph W Horber (4 out of 7 patents)

Hung D Vu (3 out of 6 patents)

Masayuki Someya (2 out of 3 patents)

4. Albert C Leenhouts (1 out of 1 patent)

5. Francis Brian O'Neill (1 out of 1 patent)

6. Stanley Maurice Katz (1 out of 2 patents)

9 patents: Sort by Forward Citations

1. 6844647 - Permanent magnet motor having flux density characteristics that are internally variable (2005-01-18),

2. 6555987 - Step motor control for accommodating friction load variation (2003-04-29),

3. 6548977 - Motor tracking control system (2003-04-15),

4. 6384563 - Method and apparatus for load torque detection and drive current optimization (2002-05-07),

5. 6150788 - Load torque detection and drive current optimization determination met (2000-11-21),

6. 5838122 - Motor initialization method and apparatus (1998-11-17),

7. 5770829 - General purpose position control system having recursive profile (1998-06-23),

8. 5329195 - Sensor motor (1994-07-12),

9. 4687961 - Polyphase DC motor with sensor poles (1987-08-18),

Company Overview

Seiberco Incorporated is a leading technology company specializing in software development and IT consulting services. With a team of experienced professionals, we provide innovative solutions to help businesses thrive in the digital age. Our expertise includes custom software development, cloud computing, cybersecurity, and more. Partner with Seiberco to transform your business and stay ahead of the competition.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

9 Patents

#8 in Braintree, MA

#1,926 in Massachusetts

#32,627 in US

Braintree, MA, United States of America