Individual holder
GRAVE DALE L
6 granted patents·270 citations·filing 1982–1987
Individually held — no corporate assignee on record.
Technology mixA47L6
Top patents by PatentIndex Score
6 records- 0191US4466155ARecycling cleaning apparatusGRAVE DALE L·Filed 1982·Granted Aug 21, 1984·78 cites·5 claims
- 0278US4649594ACleaning head for smooth and napped surface covering materialsGRAVE DALE L·Filed 1985·Granted Mar 17, 1987·47 cites·12 claims
- 0378US4488330ARug and upholstery cleaning apparatusGRAVE DALE L·Filed 1982·Granted Dec 18, 1984·45 cites·7 claims
- 0470US4720889APerimeter seal structure for a cleaning headGRAVE DALE L·Filed 1987·Granted Jan 26, 1988·35 cites·11 claims
- 0569US4654925ANozzle structure for a surface covering cleaning machineGRAVE DALE L·Filed 1986·Granted Apr 7, 1987·36 cites·9 claims
- 0663US4696075AFilter structureGRAVE DALE L·Filed 1986·Granted Sep 29, 1987·29 cites·6 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →