For the Inventor, By the Inventor

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Eden Prairie, MN, United States of America

Cardinal Fg Company

USPTO Granted Patents = 2

Trademarks = 9

Forward Citations = 2

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5 inventors (with patents filed for the assignee):

Roger D O'Shaughnessy (1 out of 19 patents)

Mark Sisk (1 out of 1 patent)

Chris Granley (1 out of 2 patents)

4. Al Slavich (1 out of 2 patents)

5. Mark Piper (1 out of 2 patents)

2 patents: Sort by Forward Citations

1. 6957944 - Method and apparatus for stacking small sheets of glass (2005-10-25),

2. 6349569 - Stain-resistant glass making method (2002-02-26),

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#158 in Eden Prairie, MN

#2,484 in Minnesota

#92,554 in US

Eden Prairie, MN, United States of America

Cardinal Fg Company

Forward Citations = 2

5 inventors:

Roger D O'Shaughnessy (1 out of 19 patents)

Mark Sisk (1 out of 1 patent)

Chris Granley (1 out of 2 patents)

4. Al Slavich (1 out of 2 patents)

5. Mark Piper (1 out of 2 patents)

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