Inventor · disambiguated record
Lowell E. Johnson
Also filed as: JOHNSON LOWELL E
7 granted patents·128 citations·filing 1974–1990
85Inventor score
Top patents by PatentIndex Score
7 records- 0193US5040648AElectrohydraulic control device for a drive train of a vehicleCATERPILLAR INC·Filed 1990·Granted Aug 20, 1991·71 cites·42 claims
- 0253US4088043ADirect drive transmissionCATERPILLAR TRACTOR CO·Filed 1976·Granted May 9, 1978·12 cites·12 claims
- 0352US5109696APowertrain performance assessment systemCATERPILLAR INC·Filed 1990·Granted May 5, 1992·22 cites·43 claims
- 0441US3955366ATorque converter power capacity varying meansCATERPILLAR TRACTOR CO·Filed 1974·Granted May 11, 1976·6 cites·6 claims
- 0538US4047383ATorque converter with variable statorCATERPILLAR TRACTOR CO·Filed 1976·Granted Sep 13, 1977·9 cites·19 claims
- 0632US4791663ATelephone status recognition and bypass systemTELIDENT INC·Filed 1988·Granted Dec 13, 1988·7 cites·15 claims
- 0723US3972401ASlipping clutch controls responsive to wheel slipCATERPILLAR TRACTOR CO·Filed 1974·Granted Aug 3, 1976·1 cites·5 claims
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