Individual holder
ARTHUR DAVID M
3 granted patents·160 citations·filing 1974–1978
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0193US4010614ASolar radiation collector and system for converting and storing collected solar energyARTHUR DAVID M·Filed 1974·Granted Mar 8, 1977·102 cites·4 claims
- 0278US4203193AMethod of attaching a rail and a tie plate to a cross tieARTHUR DAVID M·Filed 1978·Granted May 20, 1980·41 cites·4 claims
- 0354US3964680ARailroad spike retainerARTHUR DAVID M·Filed 1975·Granted Jun 22, 1976·17 cites·9 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →