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For the Inventor, By the Inventor

Rochester Hills, MI, United States of America

Generalsports Turf, LLC


USPTO Granted Patents = 2

% Expired Patents = 50.0

Forward Citations = 37

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2 inventors (with patents filed for the assignee):

goldMedal John Graeme Knox (1 out of 16 patents)

silverMedal Charles E Cook (1 out of 19 patents)


2 patents:

1. 7189445 - Synthetic sports turf having improved playability and wearability (2007-03-13),
2. 7155796 - Method for assembling a modular sports field (2007-01-02),
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USPTO Data Jan 1 1976 - Oct 6 2026

2 Patents

#44 in Rochester Hills, MI

#3,186 in Michigan

#94,782 in US

Rochester Hills, MI (US)
Rochester Hills, MI, United States of America

Generalsports Turf, LLC

Forward Citations = 37

2 inventors:

goldMedal John Graeme Knox (1 out of 16 patents)

silverMedal Charles E Cook (1 out of 19 patents)

Please report any incorrect information to [email protected]
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