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ROLLEI WERKE FRANKE HEIDECKE

Overview
  • Total Patents
    1,344
About

ROLLEI WERKE FRANKE HEIDECKE has a total of 1,344 patent applications. Its first patent ever was published in 1920. It filed its patents most often in Germany, United States and United Kingdom. Its main competitors in its focus markets optics, electrical machinery and energy and consumer goods are BALDA WERKE PHOTOGRAPHISCHE, EDWARD GEORGE TURNER and TOSHIBA PHOTO PROD.

Patent filings in countries

World map showing ROLLEI WERKE FRANKE HEIDECKEs patent filings in countries

Patent filings per year

Chart showing ROLLEI WERKE FRANKE HEIDECKEs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Prochnow Claus 55
#2 Sobotta Reinhard 47
#3 Weiss Richard 46
#4 Bretthauer Hermann 34
#5 Richard Weiss 29
#6 Schneider Arthur 25
#7 Waaske Heinz 25
#8 Sommermeyer Friedrich 22
#9 Mielke Bodo 22
#10 Stiller Armin 21

Latest patents

Publication Filing date Title
DE3543887A1 Electrical vapour capacitor, in particular an electrolytic capacitor for a computerized flashgun
DE3113029A1 "DEVICE FOR IRIS CONTROL IN A PHOTOGRAPHIC CAMERA"
JPS5734539A Illuminator
DE3110273A1 Wireless remote control for a still projector consisting of a transmitter and receiver
GB2065858A A reflector unit having variable angle light out-put
GB2065920A Lighting device for photography
DE3041216A1 Variable light direction flashgun - has secondary reflector mounted above housing receiving light from main pivotable reflector in at least one orientation
DE3038322A1 SLIDE VIEWING DEVICE
DE3027259A1 Variable light direction flashgun - has secondary reflector mounted above housing receiving light from main pivotable reflector in at least one orientation
DE3022674A1 Guide roller for roll film - has tapering ends and uniform middle part to pull film flat
EP0023255A1 Projector provided with an operating device
DE3020799A1 Servo focus drive for lens - has spring return and solenoid hold on ratchet
DE3020002A1 Viewer for slide transparencies - has light source at apex of, and facing truncated oblong end of opalescent pyramid with viewing stage as
DE3015943A1 REMOTE CONTROL DEVICE
DE3015398A1 FOCUSING DEVICE WITH MOTOR DRIVE
EP0037839A1 Camera having a device for indicating the depth of field
DE3011320A1 Carrying bag with built-in camera holder - has fixing point in flap ensuring camera ready for use
DE3010851A1 ROUND MAGAZINE
DE3005317A1 Handbag and camera container combined - has rigid sides, with lid flap to which camera is screwed
DE3004227A1 SCREW CONNECTIONS