Assignee
ROYAL INDUSTRIES
26 patents
Top patents by PatentIndex Score
US4083033AApr 4, 1978
Traffic control element
ROYAL INDUSTRIES71 citations94
US4132983AJan 2, 1979
Radio synchronized warning light system
ROYAL INDUSTRIES65 citations93
US4156166AMay 22, 1979
Method and apparatus for saving energy
ROYAL INDUSTRIES66 citations89
US3930808AJan 6, 1976
Automatic collet hinge/screw placement machine
ROYAL INDUSTRIES47 citations87
US5651322AJul 29, 1997
Automatic sewing machine with bobbin support
ROYAL INDUSTRIES27 citations84
US4172573AOct 30, 1979
Fuel tank
ROYAL INDUSTRIES37 citations81
USD243073SJan 18, 1977
Traffic channelization drum or the like
ROYAL INDUSTRIES18 citations80
USD243075SJan 18, 1977
Traffic channelization drum or the like
ROYAL INDUSTRIES17 citations80
US4085619AApr 25, 1978
Electronic balancer for vehicle wheels
ROYAL INDUSTRIES27 citations79
US4022411AMay 10, 1977
Self-levelling seat suspension system for vehicles
ROYAL INDUSTRIES28 citations75
US4043441AAug 23, 1977
Mobile pump
ROYAL INDUSTRIES8 citations74
US7438545B2Oct 21, 2008
Cotton candy machine
ROYAL INDUSTRIES8 citations72
USD243074SJan 18, 1977
Traffic channelization drum or the like
ROYAL INDUSTRIES16 citations72
US3973805AAug 10, 1976
Motor vehicle security system and security method
ROYAL INDUSTRIES30 citations72
US4115257ASep 19, 1978
Grain cleaner
ROYAL INDUSTRIES28 citations70
US4008816AFeb 22, 1977
Grain bin sweep auger with torque arm
ROYAL INDUSTRIES29 citations70
US4034786AJul 12, 1977
Wheel chuck
ROYAL INDUSTRIES21 citations69
US4115007ASep 19, 1978
Vehicle wheel alignment system
ROYAL INDUSTRIES7 citations68
US4034999AJul 12, 1977
Adjustable top link for 3-point hitch
ROYAL INDUSTRIES10 citations67
US4162097AJul 24, 1979
Vehicle cab structure
ROYAL INDUSTRIES12 citations66
US3963352AJun 15, 1976
Wheel alignment apparatus
ROYAL INDUSTRIES19 citations64
US4134503AJan 16, 1979
Dumping apparatus for open top of vehicles
ROYAL INDUSTRIES12 citations59
US4262751AApr 21, 1981
Tension failure trip for subsoil ripping shanks
ROYAL INDUSTRIES9 citations58
US4121669AOct 24, 1978
Floating row-crop cultivator
ROYAL INDUSTRIES8 citations58
US5609116AMar 11, 1997
Sewing machine including cloth presser lever lifting
ROYAL INDUSTRIES4 citations54
US4173261ANov 6, 1979
Agricultural furrowing assembly
ROYAL INDUSTRIES4 citations45