Assignee
BERKEY PHOTO INC
US16 patents
Top patents by PatentIndex Score
US4530176AJul 23, 1985
Apparatus for cataloguing photographs and negatives
BERKEY PHOTO INC33 citations84
US4432636AFeb 21, 1984
Illumination apparatus
BERKEY PHOTO INC7 citations68
US4069490AJan 17, 1978
Camera construction
BERKEY PHOTO INC3 citations59
US4023031AMay 10, 1977
Luminaire
BERKEY PHOTO INC9 citations58
US4433910AFeb 28, 1984
Transparency holder
BERKEY PHOTO INC5 citations57
US4433907AFeb 28, 1984
Lens alignment structure
BERKEY PHOTO INC6 citations57
US4432638AFeb 21, 1984
Alignment structure
BERKEY PHOTO INC4 citations57
US4096495AJun 20, 1978
Iris control
BERKEY PHOTO INC6 citations57
US4001848AJan 4, 1977
Camera construction
BERKEY PHOTO INC2 citations57
US3987470AOct 19, 1976
Iris control
BERKEY PHOTO INC2 citations57
US3983570ASep 28, 1976
Camera construction
BERKEY PHOTO INC2 citations57
USD281124SOct 29, 1985
Photographic album storage and display case
BERKEY PHOTO INC5 citations54
US4053226AOct 11, 1977
Photographic printer
BERKEY PHOTO INC4 citations52
US3995290ANov 30, 1976
Mechanical sequencing system for firing photoflash lamps
BERKEY PHOTO INC1 citations52
USD250198SNov 7, 1978
Camera
BERKEY PHOTO INC1 citations51
US3976911AAug 24, 1976
Illumination system and method and means for operating it
BERKEY PHOTO INC2 citations44