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DARCO CORP

Overview
  • Total Patents
    31
About

DARCO CORP has a total of 31 patent applications. Its first patent ever was published in 1917. It filed its patents most often in United States. Its main competitors in its focus markets materials and metallurgy, chemical engineering and basic materials chemistry are CHEMISCHE PRODUKTION M B H GES, CHEMISCHE WERKE CARBON GES M B and BRAMEDA RESOURCES LTD.

Patent filings in countries

World map showing DARCO CORPs patent filings in countries
# Country Total Patents
#1 United States 31

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Davis Raymond G 5
#2 Sanders Marshall T 4
#3 Pie Jr Paul F 4
#4 William Mumford Russell 3
#5 Demme Rod A 2
#6 Ingols Heber A 2
#7 Scheffler George H 2
#8 Millard Brandt 2
#9 Allien Victor S 2
#10 Linden Hill Roy 2

Latest patents

Publication Filing date Title
US2477206A Process for purifying beet juices
US2216757A Alkali activation of black liquor
US2280928A Chlorination of methane
US2216756A Activated carbon and process of making the same
US2146024A Process of making activated carbon
US2166225A Process and apparatus for preparing activated carbon
US2076645A Process for treating carbonaceous materials and product
US2076646A Process for deaerating granules of active carbon
US2111436A Process for treating carbonaceous material
US1945479A Means and method for revivifying spent activated carbon
US1913341A Means for activating carbon
US1875223A Means for revivification of spent activated carbons
US1913340A Activating carbon
US1873998A Revivification of spent carbon
US1923918A Process of and apparatus for making activated carbon
US1810871A Activation of carbon
US1772349A Method of treating milk
US1815525A Activating carbon
US1685745A Revivifying furnace
US1781661A Process of regenerating used cooking fats