Individual holder
JOHNSTON MACK S
3 granted patents·82 citations·filing 1975–1986
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0176US4728010AKeg tapperJOHNSTON MACK S·Filed 1986·Granted Mar 1, 1988·61 cites·3 claims
- 0241US4005813ASingle-opening beer keg and method of producing from conventional kegJOHNSTON MACK S·Filed 1975·Granted Feb 1, 1977·12 cites·4 claims
- 0336US4162574AHair clipperJOHNSTON MACK S·Filed 1978·Granted Jul 31, 1979·9 cites·15 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →