Inventor
SAHM WILLIAM C
US8 patents
Patents
8 patentsUS5404661AApr 11, 1995
Method and apparatus for determining the location of a work implement
CATERPILLAR INC233 citations98
US5065326ANov 12, 1991
Automatic excavation control system and method
CATERPILLAR INC200 citations98
US5935183AAug 10, 1999
Method and system for determining the relationship between a laser plane and an external coordinate system
CATERPILLAR INC99 citations97
US5951613ASep 14, 1999
Apparatus and method for determining the position of a work implement
CATERPILLAR INC102 citations96
US5850341ADec 15, 1998
Method and apparatus for monitoring material removal using mobile machinery
CATERPILLAR INC144 citations93
US5951612ASep 14, 1999
Method and apparatus for determining the attitude of an implement
CATERPILLAR INC29 citations92
US5735352AApr 7, 1998
Method for updating a site database using a triangular irregular network
CATERPILLAR INC45 citations92
US5692467ADec 2, 1997
Ventilation apparatus for an enclosure
CATERPILLAR INC33 citations92