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For the Inventor, By the Inventor

Rochester Hills, MI, United States of America

Speedring Systems, Inc.


USPTO Granted Patents = 2

Forward Citations = 51

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8 inventors (with patents filed for the assignee):

goldMedal Michael N Sweeney (2 out of 2 patents)

silverMedal Edward C Smith (1 out of 3 patents)

bronzeMedal John Michael Rodgers (1 out of 8 patents)

4.  Brian L Tiffany (1 out of 1 patent)

5.  Thomas J Vettese (1 out of 1 patent)

6.  Mark S Maiberger (1 out of 1 patent)

7.  Steve F Sagan (1 out of 1 patent)

8.  Emery Erdelyi (1 out of 1 patent)


2 patents:

1. 5999302 - Polygon scanner having a fluid film bearing and active correction of (1999-12-07),
2. 5610751 - Optical scanning device having a spherical exit window (1997-03-11),
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USPTO Data Jan 1 1976 - Dec 30 2025

2 Patents

#47 in Rochester Hills, MI

#3,127 in Michigan

#92,662 in US

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Rochester Hills, MI, United States of America

Speedring Systems, Inc.

Forward Citations = 51

8 inventors:

goldMedal Michael N Sweeney (2 out of 2 patents)

silverMedal Edward C Smith (1 out of 3 patents)

bronzeMedal John Michael Rodgers (1 out of 8 patents)

4.  Brian L Tiffany (1 out of 1 patent)

5.  Thomas J Vettese (1 out of 1 patent)

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