Patents
Patents for F21S 9 - Lighting devices with a built-in power supply; Systems employinglighting devices with a built-in power supply (12,141)
07/1981
07/28/1981US4281369 Method and apparatus for solar power lighting
06/1981
06/09/1981US4271621 Conversion unit for electrical light fixture
03/1981
03/10/1981US4255746 Emergency lighting and fire detector system
02/1981
02/25/1981EP0024066A1 Portabel self contained lighting device working on solar radiation
11/1980
11/04/1980US4232357 Automobile mechanic's aid
10/1980
10/07/1980US4227191 Light emitting smoke detector
09/1980
09/02/1980US4220981 Portable floodlighting equipment
08/1980
08/21/1980WO1980001712A1 Portable self contained lighting device working on solar radiation
08/19/1980US4218725 Emergency light
08/05/1980US4216410 Emergency lighting system
04/1980
04/29/1980US4200904 Solar powered street lighting system
02/1980
02/05/1980US4187532 Electronic candle
01/1980
01/01/1980US4181929 Portable illuminating tower
12/1979
12/25/1979US4180849 Pedal cycle headlamp
12/18/1979CA1068247A1 Emergency power failure light
12/11/1979US4178626 Drawer light
12/04/1979US4177500 Power failure light and circuit therefor
09/1979
09/18/1979CA1062677A1 Portable telescopic warning lamp
07/1979
07/31/1979US4162814 Lighted display chamber
07/31/1979CA1059579A1 Self-contained maintenance-free emergency lighting
07/31/1979CA1059481A1 Illuminated propeller decorative light
06/1979
06/19/1979CA1056785A1 Electrochemical cell-containing emergency sea beacon
05/1979
05/29/1979US4156891 Explosion-proof emergency light
05/15/1979USRE30000 Multiple stage extensible boom
10/1978
10/17/1978CA1040713A1 Lighting devices
08/1978
08/15/1978US4107766 Emergency power failure light
06/1978
06/20/1978US4096553 Emergency table lamp
05/1978
05/16/1978US4090178 Combination smoke detector and lamp structure
03/1978
03/14/1978US4079243 Battery powered lamp assembly
01/1978
01/31/1978US4071749 Self-contained maintenance-free emergency lighting
01/17/1978US4069404 Slidable switch usable with a portable warning lamp
12/1977
12/13/1977US4062371 Walking cane
10/1977
10/11/1977US4053758 Underwater swimming pool illumination systems
09/1977
09/27/1977US4050834 Internally powered traffic control device
06/1977
06/14/1977US4029954 Portable lamp
01/1977
01/04/1977US4001803 Lighting devices
12/1976
12/28/1976US4000403 Multi-purpose light
07/1976
07/13/1976US3969649 Circuit arrangement for bicycle lighting systems
05/1976
05/04/1976US3955076 Underwater swimming pool illumination systems
04/1976
04/06/1976US3949218 Lamp assembly
02/1976
02/03/1976US3936668 Apparatus for viewing the underside of vehicles