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For the Inventor, By the Inventor

Hudson, OH, United States of America

Hd Proppants LLC


USPTO Granted Patents = 1

Forward Citations = 2

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1 inventor (with patents filed for the assignee):

goldMedal Karl-Heinz Schofalvi (1 out of 2 patents)


1 patent:

1. 9701589 - Proppants for use in hydrofracking (2017-07-11),
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USPTO Data Jan 1 1976 - Jan 6 2026

1 Patents

#29 in Hudson, OH

#5,176 in Ohio

#133,943 in US

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Hudson, OH, United States of America

Hd Proppants LLC

Forward Citations = 2

1 inventor:

goldMedal Karl-Heinz Schofalvi (1 out of 2 patents)

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