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ROTOPHOT AKT GES FUER GRAPHISC

Overview
  • Total Patents
    13
About

ROTOPHOT AKT GES FUER GRAPHISC has a total of 13 patent applications. Its first patent ever was published in 1914. It filed its patents most often in Germany and United Kingdom. Its main competitors in its focus markets optics and textiles and paper are MIRACLON CORP, MARIANO DE SPERATI and TOYOTA MAX KK.

Patent filings in countries

World map showing ROTOPHOT AKT GES FUER GRAPHISCs patent filings in countries
# Country Total Patents
#1 Germany 12
#2 United Kingdom 1

Patent filings per year

Chart showing ROTOPHOT AKT GES FUER GRAPHISCs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Wolfsohn Dr Kurt 2
#2 Theis Wilh 1
#3 Theis Wilhelm 1

Latest patents

Publication Filing date Title
DE546652C Process for the production of color grid prints on textile fabrics in half tones with photomechanical gravure printing forms
DE486630C Process for the reproduction of lacquer work and for the production of patterns or ornaments on pigment colloid layers by means of gravure printing
DE542655C Process for attaching registration marks to partial negatives or transparencies for multicolor gravure printing
DE494089C Process for the production of three-color partial negatives or slides for three-color printing processes
DE397984C Process for the photomechanical production of printing forms for the suction process
DE397575C Device for transferring the pigment paper to the printing rollers
DE380971C Process for converting the silver into halogen silver in photographic silver images for the purpose of subsequent toning
DE385991C Method for arranging and fixing negatives on mirror glass plates
DE322124C Multicolor rotogravure negatives and their manufacturing process
DE322123C Process for lightening tones on rotogravure printing plates
DE345993C Process for the production of mounting plates for negatives and slides, which are to be used for the photomechanical production of multi-color printing forms
DE346113C Method for attaching identically lying image boundary lines to the partial negatives or partial slides for multicolor gravure printing
GB191422078A Improvements in and relating to the Production of Photomechanical Colour Printing Surfaces.