Learn more

RUDOLF FRITSCHE

Overview
  • Total Patents
    12
About

RUDOLF FRITSCHE has a total of 12 patent applications. Its first patent ever was published in 1927. It filed its patents most often in United States, United Kingdom and Germany. Its main competitors in its focus markets optics and textiles and paper are SPITZER EMANUEL, NOUEL JEAN MARIE and COOKSON GRAPHICS PLC.

Patent filings in countries

World map showing RUDOLF FRITSCHEs patent filings in countries
# Country Total Patents
#1 United States 8
#2 United Kingdom 3
#3 Germany 1

Patent filings per year

Chart showing RUDOLF FRITSCHEs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Rudolf Fritsche 8

Latest patents

Publication Filing date Title
US2903550A Method and apparatus for processing printing plates
US2074171A Apparatus for coating lithographic plates
GB458634A Improvements in lithographic plate graining machines
US2038352A Lithographic plate graining machine
US2005654A Lithographic plate graining device
US1940539A Device for making corrections on lithographic printing surfaces
US1956917A Registering device
GB309747A Improvements in photographic printing
US1712428A Process of toning blueprints green
US1681849A Method of preparing rust-resisting iron and steel printing plates