Individual holder
DEWALL RICHARD A
3 granted patents·44 citations·filing 1973–1978
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0166US3946735AMedical drainage deviceDEWALL RICHARD A·Filed 1974·Granted Mar 30, 1976·29 cites·10 claims
- 0252US3994689AMetabolic bubble oxygenatorDEWALL RICHARD A·Filed 1973·Granted Nov 30, 1976·14 cites·10 claims
- 0323US4203944ARespiratory gas assembly for bubble oxygenatorDEWALL RICHARD A·Filed 1978·Granted May 20, 1980·1 cites·19 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →