Individual holder
ROARK CHARLES F
4 granted patents·87 citations·filing 1976–1979
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0174US4282861AWater heating system using solar energyROARK CHARLES F·Filed 1979·Granted Aug 11, 1981·29 cites·3 claims
- 0266US4287879AWater heating system using solar energyROARK CHARLES F·Filed 1979·Granted Sep 8, 1981·21 cites·22 claims
- 0356US4132222ASolar energy collectorROARK CHARLES F·Filed 1976·Granted Jan 2, 1979·16 cites·7 claims
- 0455US4236506ASolar energy collectorROARK CHARLES F·Filed 1978·Granted Dec 2, 1980·21 cites·4 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →