For the Inventor, By the Inventor

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Fremont, CA, United States of America

Dexter Magnetic Technologies, Inc.

USPTO Granted Patents = 21

% Expired Patents = 19.0

CIPO Patents = 2

EPO Patents = 1

Trademarks = 5

Forward Citations = 320

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20 inventors (with patents filed for the assignee):

Richard E Stelter (7 out of 9 patents)

Chun Li (5 out of 5 patents)

Gareth P Hatch (5 out of 5 patents)

4. David Choit (3 out of 3 patents)

5. William J McDonald (3 out of 24 patents)

6. Timothy F Price (3 out of 3 patents)

7. Thomas J Devaney (3 out of 3 patents)

8. Christopher A Ras (2 out of 2 patents)

9. Mike Schilling (2 out of 2 patents)

10. Paul Lituri (2 out of 2 patents)

11. Martin D Sterman (2 out of 2 patents)

12. Jeffrey E Foy (2 out of 2 patents)

13. Eric B Sweeney (2 out of 2 patents)

14. Aron Welk (1 out of 3 patents)

15. Anthony Parakka (1 out of 1 patent)

21 patents: Sort by Forward Citations

1. 10529362 - Magnetic structure for erasing media having high magnetic coercivity (2020-01-07),

2. 8760153 - High resolution absolute orientation rotary magnetic encoder (2014-06-24),

3. 8520333 - Magnetic structure for erasing disk or disks within hard disk drives (2013-08-27),

4. 8305177 - Multi function magnetic decoupler (2012-11-06),

5. 7549467 - Wellbore motor having magnetic gear drive (2009-06-23),

6. 7487829 - Wellbore valve having linear magnetically geared valve actuator (2009-02-10),

7. 7481283 - Wellbore motor having magnetic gear drive (2009-01-27),

8. 7373716 - Method for constructing permanent magnet assemblies (2008-05-20),

9. 7258799 - Method and apparatus for magnetic separation of particles (2007-08-21),

10. 7182843 - Rotating sputtering magnetron (2007-02-27),

11. 7135792 - High field voice coil motor (2006-11-14),

12. 6572778 - Method for separating magnetized substances from a solution (2003-06-03),

13. 6562239 - Magnetic separation device (2003-05-13),

14. 6514416 - Method and apparatus for magnetic separation of particles (2003-02-04),

15. 6514415 - Method and apparatus for magnetic separation of particles (2003-02-04),

Dexter Magnetic Technologies, Inc. is a leading provider of magnetic solutions, specializing in the design and manufacture of custom magnetic assemblies and components. The company focuses on various applications, including industrial, automotive, and medical sectors, leveraging advanced magnetic technologies to meet diverse client needs. Based in Fremont, California, Dexter Magnetic Technologies is committed to innovation and quality, ensuring that its products enhance performance and reliability across multiple industries.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Dexter Magnetic Technologies, Inc.

21 Patents

#102 in Fremont, CA

#3,754 in California

#15,668 in US

#29,893 in the World

Fremont, CA, United States of America

Dexter Magnetic Technologies, Inc.

Forward Citations = 320

20 inventors:

Richard E Stelter (7 out of 9 patents)

Chun Li (5 out of 5 patents)

Gareth P Hatch (5 out of 5 patents)

4. David Choit (3 out of 3 patents)

5. William J McDonald (3 out of 24 patents)

Please report any incorrect information to [email protected]

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