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USPTO Data Jan 1 1976 - Oct 20 2026
2 Patents
#98 in Marlborough, MA
#4,931 in Massachusetts
#94,905 in US
Seprachem, Inc.
Forward Citations = 4
3 inventors:
Marlborough, MA, United States of America
Seprachem, Inc.
Forward Citations = 4
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3 inventors (with patents filed for the assignee):
Charles M Zepp (2 out of 57 patents)
Donald L Heefner (2 out of 13 patents)
Richard F Rossi (2 out of 11 patents)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Seprachem, Inc.. Retrieved from https://idiyas.com/company/seprachem
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]