Company Badge
USPTO Data Jan 1 1976 - Oct 6 2026
1 Patents
#2 in Afton, MN
#3,564 in Minnesota
#136,739 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:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hydochar LLC. Retrieved from https://idiyas.com/company/hydochar
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]