Individual holder
LEBLANC RALPH W
3 granted patents·70 citations·filing 1980–1992
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0176US5316743ADiesel fuel cracking unitLEBLANC RALPH W·Filed 1992·Granted May 31, 1994·34 cites·4 claims
- 0263US4295966AApparatus for removing contaminants from lubricating oilLEBLANC RALPH W·Filed 1980·Granted Oct 20, 1981·26 cites·11 claims
- 0338US4298469AManifolding system for oil purifiersLEBLANC RALPH W·Filed 1980·Granted Nov 3, 1981·10 cites·5 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →