For the Inventor, By the Inventor

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Chaska, MN, United States of America

Entergris, Inc.

USPTO Granted Patents = 2

Trademarks = 3

Forward Citations = 45

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5 inventors (with patents filed for the assignee):

John A Leys (1 out of 25 patents)

Michael C Zabka (1 out of 15 patents)

Michael Stoick (1 out of 9 patents)

4. Ralph Henderer (1 out of 1 patent)

5. Gregory W Bores (1 out of 18 patents)

2 patents: Sort by Forward Citations

1. 6575187 - Three-way plastic valve (2003-06-10),

2. 6550619 - Shock resistant variable load tolerant wafer shipper (2003-04-22),

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USPTO Data Jan 1 1976 - Jan 13 2026

2 Patents

#34 in Chaska, MN

#2,488 in Minnesota

#92,762 in US

Chaska, MN, United States of America

Entergris, Inc.

Forward Citations = 45

5 inventors:

John A Leys (1 out of 25 patents)

Michael C Zabka (1 out of 15 patents)

Michael Stoick (1 out of 9 patents)

4. Ralph Henderer (1 out of 1 patent)

5. Gregory W Bores (1 out of 18 patents)

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