Harry L Tarnoff (3 out of 5 patents)
Stuart T Spence (3 out of 28 patents)
Company Badge
USPTO Data Jan 1 1976 - Oct 27 2026
3 Patents
#25 in Venice, CA
#16,875 in California
#73,929 in US
Dfr2000, Inc.
Forward Citations = 40
2 inventors:
Venice, CA, United States of America
Dfr2000, Inc.
Calculating rank
Forward Citations = 40
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2 inventors (with patents filed for the assignee):
3 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Dfr2000, Inc.. Retrieved from https://idiyas.com/company/dfr2000
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]