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DUPONT VISCOLOID COMPANY

Overview
  • Total Patents
    21
About

DUPONT VISCOLOID COMPANY has a total of 21 patent applications. Its first patent ever was published in 1930. It filed its patents most often in United States and United Kingdom. Its main competitors in its focus markets machines, macromolecular chemistry and polymers and consumer goods are NORTHERN ENGRAVING CORP, PAPER PAK PROD INC and CEE BEE MFG CO INC.

Patent filings in countries

World map showing DUPONT VISCOLOID COMPANYs patent filings in countries
# Country Total Patents
#1 United States 20
#2 United Kingdom 1

Patent filings per year

Chart showing DUPONT VISCOLOID COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Donaldson Alfred S 3
#2 Marks Barnard M 3
#3 Eskew Roderick K 2
#4 Bren Bozetech C 2
#5 Milton Slipp Roy 1
#6 Herman Kaufman 1
#7 Tanner Bailey Albert 1
#8 Izard Emmette F 1
#9 John Loder Donald 1
#10 Dickson Robert F 1

Latest patents

Publication Filing date Title
GB462549A Improvements in or relating to the manufacture of lead pigments
US2040937A Laminated article and manufacture of same
US2014381A Ester of isobutyric acid
US2051877A Modified compositions
US2045660A Process of polymerization
US2044585A Preparation of molded articles
US2019119A Extrusion apparatus
US1997572A Sound record
US1995117A Process for treating cellulose nitrate
US2030568A Laminated record
US2044339A Brush drilling machine
US1994164A Manufacture of decorative plastic
US1950231A Attaching means for ornamental devices
US1950230A Silhouette ornamentation on articles of manufacture
US1963892A Ornamentation of toilet articles
US1985997A Celluloid article and method of making same
US1946067A Reduction of the viscosity of cellulose nitrate
US1991765A Aldehyde-hydrogen sulphide reaction product
US2019354A Urea-condensation resinous compositions
US1936351A Decorated plastic sheeting