Assignee
SMITH ENGINEERING
US23 patents
Top patents by PatentIndex Score
US5394168AFeb 28, 1995
Dual-mode hand-held game controller
SMITH ENGINEERING251 citations99
US4846693AJul 11, 1989
Video based instructional and entertainment system using animated figure
SMITH ENGINEERING296 citations99
US4462076AJul 24, 1984
Video game cartridge recognition and security system
SMITH ENGINEERING299 citations99
US4359222ANov 16, 1982
Hand-held electronic game playing device with replaceable cartridges
SMITH ENGINEERING177 citations98
US5779576AJul 14, 1998
Throw-measuring football
SMITH ENGINEERING229 citations97
US5796387AAug 18, 1998
Positioning system using infrared radiation
SMITH ENGINEERING84 citations96
US5401025AMar 28, 1995
Remote control system for raster scanned video display
SMITH ENGINEERING45 citations96
US4875096AOct 17, 1989
Encoding of audio and digital signals in a video signal
SMITH ENGINEERING53 citations96
US4786967ANov 22, 1988
Interactive video apparatus with audio and video branching
SMITH ENGINEERING67 citations96
US4408103AOct 4, 1983
Joystick operated multiple position switch
SMITH ENGINEERING94 citations96
US4500879AFeb 19, 1985
Circuitry for controlling a CRT beam
SMITH ENGINEERING69 citations95
US4349196ASep 14, 1982
Computer control toy track system
SMITH ENGINEERING66 citations94
US5277429AJan 11, 1994
Game assembly utilizing sound identification for moves on a game board
SMITH ENGINEERING29 citations93
US4398086AAug 9, 1983
Game-calculator having sliding mask
SMITH ENGINEERING40 citations93
US5351969AOct 4, 1994
Remote control system for raster scanned video display
SMITH ENGINEERING36 citations92
US5043646AAug 27, 1991
Remote control direction selecting system
SMITH ENGINEERING49 citations90
US5067079ANov 19, 1991
Interactive audio baseball game
SMITH ENGINEERING36 citations89
US4504062AMar 12, 1985
Digital watch having matrix display for arcade-like game playing
SMITH ENGINEERING23 citations81
US4627090ADec 2, 1986
Audio frequency multiplication device
SMITH ENGINEERING14 citations73
US4622690ANov 11, 1986
Audio frequency multiplication device
SMITH ENGINEERING9 citations73
US4360808ANov 23, 1982
Radio control apparatus with voice transmission capability
SMITH ENGINEERING18 citations73
US4337460AJun 29, 1982
Hand-held sound effects device
SMITH ENGINEERING10 citations73
US4272917AJun 16, 1981
Steering assembly rendering car unstable in a turn
SMITH ENGINEERING4 citations61