Assignee
DOUGLAS DYNAMICS INC
US10 patents
Top patents by PatentIndex Score
US4999935AMar 19, 1991
Hydraulic system and apparatus for use with vehicle accessory units
DOUGLAS DYNAMICS INC64 citations94
US4280062AJul 21, 1981
Auxiliary light wiring harness
DOUGLAS DYNAMICS INC76 citations94
US5501405AMar 26, 1996
Dispenser apparatus for spreading particulate material
DOUGLAS DYNAMICS INC47 citations92
US4304056ADec 8, 1981
Snow plow mounting assembly
DOUGLAS DYNAMICS INC49 citations91
US5125174AJun 30, 1992
Removable snowflow with a pivotable lift stand
DOUGLAS DYNAMICS INC61 citations90
US5420480AMay 30, 1995
Automatic headlamp switching system
DOUGLAS DYNAMICS INC40 citations86
US5353530AOct 11, 1994
Quick mounting snow plow assembly
DOUGLAS DYNAMICS INC97 citations86
US4304057ADec 8, 1981
Snow plow assembly including linear actuator
DOUGLAS DYNAMICS INC22 citations80
US4206602AJun 10, 1980
Single lever hydraulic system control mechanism
DOUGLAS DYNAMICS INC16 citations72
US4481988ANov 13, 1984
Log splitter
DOUGLAS DYNAMICS INC4 citations62