Company Badge
USPTO Data Jan 1 1976 - Sep 15 2026
1 Patents
#2 in Afton, MN
#3,559 in Minnesota
#136,534 in US
Hydochar LLC
Forward Citations = 7
6 inventors:
Afton, MN, United States of America
Hydochar LLC
% Expired Patents = 100.0
Forward Citations = 7
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6 inventors (with patents filed for the assignee):
Michael J Sadowsky (1 out of 19 patents)
Steven M Heilmann (1 out of 99 patents)
Frederick J Schendel (1 out of 7 patents)
4. Kenneth J Valentas (1 out of 7 patents)
5. Paul A Lefebvre (1 out of 1 patent)
6. Marc Von Keitz (1 out of 2 patents)
1 patent:
Please report any incorrect information to [email protected]
Please report any incorrect information to [email protected]
Please report any incorrect information to [email protected]