Assignee
HANSON LESTER
4 granted patents·92 citations·filing 1976–1981
Top patents by PatentIndex Score
4 records- 0177US4216999AMachine for mining tar sands having rearwardly directed exhaust related to conveyor troughHANSON LESTER·Filed 1978·Granted Aug 12, 1980·21 cites·3 claims
- 0271US4065361AApparatus and system for processing oil shaleHANSON LESTER·Filed 1976·Granted Dec 27, 1977·27 cites·7 claims
- 0369US4180718AApparatus and system for processing oil shaleHANSON LESTER·Filed 1977·Granted Dec 25, 1979·24 cites·9 claims
- 0467US4398076AProduct recovery method and system for hydrocarbon materialsHANSON LESTER·Filed 1981·Granted Aug 9, 1983·20 cites·6 claims
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