Roger Anton Sramek (1 out of 11 patents)
Roger S Smith (1 out of 1 patent)
Company Badge
USPTO Data Jan 1 1976 - Oct 27 2026
1 Patents
#30 in Sausalito, CA
#29,064 in California
#136,971 in US
Stemsource LLC
Forward Citations = 162
2 inventors:
Sausalito, CA, United States of America
Stemsource LLC
Calculating rank
% Expired Patents = 100.0
Trademarks = 3
Forward Citations = 162
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2 inventors (with patents filed for the assignee):
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Stemsource LLC. Retrieved from https://idiyas.com/company/stemsource
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]