Individual holder
CALVIN JOHN H
3 granted patents·114 citations·filing 1983–1991
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0183US4543993APositive locking connectorCALVIN JOHN H·Filed 1983·Granted Oct 1, 1985·54 cites·22 claims
- 0274US4625746AAutomatic fluid sealing mechanism for a conduit with a frangible connectorCALVIN JOHN H·Filed 1985·Granted Dec 2, 1986·46 cites·13 claims
- 0341US5123447AQuick disconnect couplingCALVIN JOHN H·Filed 1991·Granted Jun 23, 1992·14 cites·8 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →