EL

Eric F. Lee

Caterpillar: 3 patents #2,162 of 8,398Top 30%
Overall (All Time): #1,631,655 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5860480 Method and apparatus for determining pitch and ground speed of an earth moving machines Gangadhar Jayaraman, Kenneth L. Stratton, Karl W. Kleimenhagen, Howard Jay Chizeck 1999-01-19
5710514 Hydraulic cylinder piston position sensing with compensation for piston velocity John W. Crayton, Denny E. Morgan, Dennis Lee Schumacher 1998-01-20
5608332 Dynamic gain adjustment in electromagnetic wave hydraulic cylinder piston position sensing John W. Crayton, Denny E. Morgan, Dennis Lee Schumacher 1997-03-04