Company Badge
USPTO Data Jan 1 1976 - Oct 6 2026
2 Patents
#66 in Honolulu, HI
#109 in Hawaii
#94,782 in US
Daphne Instruments, Inc.
Forward Citations = 26
3 inventors:
Honolulu, HI, United States of America
Daphne Instruments, Inc.
% Expired Patents = 100.0
Forward Citations = 26
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3 inventors (with patents filed for the assignee):
Charles E Campbell (2 out of 42 patents)
Don R Yancey (2 out of 2 patents)
Leonard Schupak (2 out of 4 patents)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Daphne Instruments, Inc.. Retrieved from https://idiyas.com/company/daphne-instruments
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]