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RICHARDSON GRAPHIC CO

Overview
  • Total Patents
    20
About

RICHARDSON GRAPHIC CO has a total of 20 patent applications. Its first patent ever was published in 1969. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets optics, textiles and paper and machines are BASF DRUCKSYST GMBH, NAKAMURA PROCESS KOGEI and MACDERMID GRAPHIC ARTS INC.

Patent filings in countries

World map showing RICHARDSON GRAPHIC COs patent filings in countries
# Country Total Patents
#1 United States 12
#2 Canada 4
#3 Germany 2
#4 United Kingdom 2

Patent filings per year

Chart showing RICHARDSON GRAPHIC COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Thomas Daniel C 9
#2 Dixit Sunit S 6
#3 Muzyczko Thaddeus M 4
#4 Jones Thomas H 4
#5 Sorkin Jack L 2
#6 Amariti Luigi 1
#7 Stansky William V 1
#8 Sorkin J 1
#9 Santos Llandro C 1
#10 Thomas D 1

Latest patents

Publication Filing date Title
US4499170A Lithographic plates and photoresists having stabilized photosensitive diazo resin with theophylline derivative
US4486526A Lithographic plate and photoresist having photosensitive layers of diazo and cinnamoylated phenol-blocked isocyanate polyurethane materials
US4400481A Finisher and preserver for lithographic plates
CA1167683A Finisher and preserver for lithographic plates including a blend of natural gum and synthetic hydrophilic resins, phosphate buffer and surfactant
US4370406A Developers for photopolymer lithographic plates
US4399243A Cleaner and scratch remover composition
US4330611A Lithographic plate and photoresist having photosensitive layers of diazo and cinnamoylated polyvinyl alcohol materials
US4334003A Ultra high speed presensitized lithographic plates
US4273851A Method of coating using photopolymerizable latex systems
US4263392A Ultra high speed presensitized lithographic plates
US4224398A Photopolymerizable latex systems
US4186069A Photopolymerizable latex systems
US3808004A Lithographic plate and photoresist having two photosensitive layers