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DENKA CHEMICAL CORP

Overview
  • Total Patents
    67
About

DENKA CHEMICAL CORP has a total of 67 patent applications. Its first patent ever was published in 1973. It filed its patents most often in United States, France and Canada. Its main competitors in its focus markets organic fine chemistry, chemical engineering and macromolecular chemistry and polymers are INEOS VINYLS UK LTD, VINNOLIT TECHNOLOGIE GMBH & CO and RILEY MARK G.

Patent filings in countries

World map showing DENKA CHEMICAL CORPs patent filings in countries
# Country Total Patents
#1 United States 31
#2 France 10
#3 Canada 8
#4 United Kingdom 7
#5 Japan 5
#6 Germany 4
#7 Italy 2

Patent filings per year

Chart showing DENKA CHEMICAL CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Barone Bruno J 15
#2 Kerr Ralph O 13
#3 Click Gaylon T 5
#4 Barone Bruno James 5
#5 Fitzgerald Kenneth D 4
#6 Click Gaylon Troy 3
#7 Turner Nathan L 3
#8 Fitzgerald Kenneth Dale 3
#9 Edmondson Morris S 3
#10 Banta Edward Mack 2

Latest patents

Publication Filing date Title
US4596878A Process for the production of maleic anhydride
US4515899A Steam regeneration of phosphorus treated vanadium-phosphorus-oxygen catalysts
US4565880A Maleic anhydride process
US4481313A Process for instantaneous peptization of chloroprene-sulfur copolymers
US4283307A Catalyst structure for the partial oxidation of n-butane to produce maleic anhydride
US4251390A Partial oxidation catalyst
US4250083A Viscosity stabilized chloroprene-sulfur copolymers
US4203905A Method for preparing stable, liquid tetrahydrophthalic anhydride for use in preparing polyesters
US4220574A Polychloroprene plasticized with corn oil
US4225682A Sulfur modified polychloroprene with improved storage stability
US4212780A Polychloroprene non-phasing solvent cements
US4202826A Process for preparing anhydride from alkanes
US4167516A Preparation of dicarboxylic anhydrides
US4128514A Stable polychloroprene latex
US4160079A Novel sulfur compound modifiers for chloroprene polymerization
US4123388A Catalyst and process for preparing maleic anhydride from C4 hydrocarbons
US4098989A Polychloroprene powders
US4153577A Oxidation catalysts and process for preparing anhydride from alkanes
US4105586A Oxidation catalysts and process for preparing anhydride from alkanes
US4179404A Catalyst preparative method