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DUPLATE CORP

Overview
  • Total Patents
    84
About

DUPLATE CORP has a total of 84 patent applications. Its first patent ever was published in 1928. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets surface technology and coating, machines and materials and metallurgy are COURTAULDS FILMS HOLDINGS LTD, COURTAULDS FILMS HOLDINGS and HELIO FOLIEN GMBH.

Patent filings in countries

World map showing DUPLATE CORPs patent filings in countries
# Country Total Patents
#1 United States 62
#2 Canada 14
#3 Germany 3
#4 United Kingdom 3
#5 France 2

Patent filings per year

Chart showing DUPLATE CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sherts James H 22
#2 Fix Earl L 14
#3 Dennison Brook J 10
#4 Zola John C 9
#5 Lytle William O 7
#6 Haux Elmer H 4
#7 Kamerer James W 4
#8 Wright Thomas G 3
#9 Macht Maurice L 3
#10 John Wynd 2

Latest patents

Publication Filing date Title
US2049850A Sheet loading apparatus
US2068082A Laminated glass and process of making the same
US2075726A Method of heating safety glass assemblies
US2057809A Edge grinding machine
US2084113A Process and apparatus for making safety glass
US2025115A Apparatus for making curved safety glass
US2068104A Apparatus for making curved safety glass
US2106766A Process for making safety glass
US2046378A Method of plasticizing a resin and forming it into a sheet
US2005075A Laminated glass and process of making the same
US2006348A Laminated glass and process of making the same
US2003288A Laminated glass and process of making the same
US2028928A Apparatus for making laminated glass
US2072583A Laminated glass
US2009441A Laminated glass and process of making the same
US2028927A Apparatus for making laminated glass
US1984899A Apparatus for use with acid cleaning equipment
US2003330A Laminated glass
US2030878A Safety glass
US2064514A Apparatus for making safety glass