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USPTO Data Jan 1 1976 - Oct 13 2026
2 Patents
#25 in Warminster, PA
#3,424 in Pennsylvania
#94,841 in US
Keystone L.e.d. Holdings LLC
Forward Citations = 23
5 inventors:
Warminster, PA, United States of America
Keystone L.e.d. Holdings LLC
% Expired Patents = 100.0
Forward Citations = 23
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5 inventors (with patents filed for the assignee):
Richard A Frantz (2 out of 14 patents)
John R Bloom (2 out of 2 patents)
Walter M Bloom, Jr (2 out of 2 patents)
4. Daniel J Clark (2 out of 2 patents)
5. Craig S Cressman (1 out of 1 patent)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Keystone L.e.d. Holdings LLC. Retrieved from https://idiyas.com/company/keystone-l-e-d-holdings
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]