Individual holder
VRANA CHARLES K
5 granted patents·93 citations·filing 1975–1984
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
5 records- 0181US4598905ATrampoline exercise steading structureVRANA CHARLES K·Filed 1984·Granted Jul 8, 1986·61 cites·1 claims
- 0257US3970031AFloating oarsVRANA CHARLES K·Filed 1975·Granted Jul 20, 1976·13 cites·6 claims
- 0335US4002137ABuoyant water scooter craftVRANA CHARLES K·Filed 1975·Granted Jan 11, 1977·5 cites·7 claims
- 0430US4117992AVertical lift deviceVRANA CHARLES K·Filed 1976·Granted Oct 3, 1978·6 cites·9 claims
- 0529US4421199ASound reflector type hearing aidVRANA CHARLES K·Filed 1982·Granted Dec 20, 1983·8 cites·2 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →