Individual holder
HOWELL ROY M
3 granted patents·52 citations·filing 1974–1992
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0183US3943895ABarrel type internal combustion engineHOWELL ROY M·Filed 1974·Granted Mar 16, 1976·39 cites·13 claims
- 0238US5327857AVehicular drive system using stored fluid power for improved efficiencyHOWELL ROY M·Filed 1992·Granted Jul 12, 1994·10 cites·10 claims
- 0327US4076336AHydrostatic bearings with controlled lubricant pressureHOWELL ROY M·Filed 1976·Granted Feb 28, 1978·3 cites·5 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →