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DURST PHOTOTECHNIK GMBH

Overview
  • Total Patents
    29
About

DURST PHOTOTECHNIK GMBH has a total of 29 patent applications. Its first patent ever was published in 1985. It filed its patents most often in EPO (European Patent Office), United States and Japan. Its main competitors in its focus markets optics, machines and computer technology are LUCHT ENG INC, PURMA CAMERAS LTD and GEORGE BAXENDEN THOMAS.

Patent filings in countries

World map showing DURST PHOTOTECHNIK GMBHs patent filings in countries

Patent filings per year

Chart showing DURST PHOTOTECHNIK GMBHs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Vinatzer Alex 8
#2 Delueg Verner 6
#3 Gandini Mario 4
#4 Reiterer Walther 3
#5 Delueg Werner 3
#6 Vikoler Florian 3
#7 Mario Gandeiini 2
#8 Tasser Siegfried 2
#9 Furantsu Ooberutetsugaa 2
#10 Obertegger Franz 1

Latest patents

Publication Filing date Title
EP0408697A1 Device for point-by-point measurement of coloured originals
EP0362780A2 Cassette for photographic tape material
US4922276A Continuous processing machine for photographic sheet material
EP0320710A2 Method and measuring apparatus for determining the correct exposure time when copying photographically
EP0261407A2 Method and device for the automatic focussing in a photographic enlarging or copying apparatus with a variable enlargement scale
EP0231494A2 Process and apparatus for filter determination in photographic enlarging or copying apparatus
EP0177926A2 Cut films cassette for photographic layer material
US4682883A Photographic color enlarging or copying apparatus
WO8602175A1 Process and device for calibrating a photographic colour enlargement or copying machine
US4678319A Measuring device for selecting the filter in photographic enlarging or copying apparatuses
CN1014746B Measuring device for the determination of filters adopted in the photographic enlarger and reproducer