Inventor
SMITH DONALD W
30 patents
⚠️ This page may combine multiple inventors who share the name “SMITH DONALD W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BARBER GREENE CO
6 patentsUS4818139AApr 4, 1989
Methods and apparatus for making an asphalt-aggregate pavement
BARBER GREENE CO64 citations94
US5035534AJul 30, 1991
Apparatus for transferring an asphalt-aggregate mixture
BARBER GREENE CO55 citations92
US5015120AMay 14, 1991
Methods and apparatus for making an asphalt-aggregate pavement
BARBER GREENE CO64 citations92
US4955754ASep 11, 1990
Shock absorbing device for a paving machine
BARBER GREENE CO35 citations92
US4944630AJul 31, 1990
Connector and method of connection between a road making machine and the fifth wheel of a tractor
BARBER GREENE CO15 citations73
US4861191AAug 29, 1989
Road widener
BARBER GREENE CO19 citations71
CMI CORP
5 patentsUS4325580AApr 20, 1982
Roadway planing apparatus
CMI CORP156 citations96
US4270801AJun 2, 1981
Steering and cutter drum positioning in a paved roadway planing machine
CMI CORP66 citations95
US3970405AJul 20, 1976
Slipform paving apparatus
CMI CORP118 citations92
US4171147AOct 16, 1979
Flywheel for a construction machine
CMI CORP21 citations81
USD256466SAug 19, 1980
Road planing machine
CMI CORP22 citations80
INGERSOLL RAND CO
4 patentsUS6672410B2Jan 6, 2004
Drilling machine having a feed cable tensioner
INGERSOLL RAND CO34 citations92
US6675915B2Jan 13, 2004
Drilling machine having a rotary head guide
INGERSOLL RAND CO13 citations84
US5740702AApr 21, 1998
Device for spinning drill pipe in a drill rig
INGERSOLL RAND CO17 citations84
US5388652AFeb 14, 1995
Apparatus on a drilling tower for gripping a drill casing
INGERSOLL RAND CO9 citations74
SANDCRAFT INC
3 patentsUS6311292B1Oct 30, 2001
Circuit, architecture and method for analyzing the operation of a digital processing system
SANDCRAFT INC54 citations96
US6092129AJul 18, 2000
Method and apparatus for communicating signals between circuits operating at different frequencies
SANDCRAFT INC8 citations74
US6085271AJul 4, 2000
System bus arbitrator for facilitating multiple transactions in a computer system
SANDCRAFT INC9 citations74