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DREWSEN VIGGO

Overview
  • Total Patents
    26
About

DREWSEN VIGGO has a total of 26 patent applications. Its first patent ever was published in 1896. It filed its patents most often in United States, Canada and Spain. Its main competitors in its focus markets textiles and paper, materials and metallurgy and chemical engineering are BRADLEY MCKEEFE CORP, ERCO ENVIROTECH LTD and TOMLINSON GEORGE H.

Patent filings in countries

World map showing DREWSEN VIGGOs patent filings in countries
# Country Total Patents
#1 United States 13
#2 Canada 7
#3 Spain 2
#4 United Kingdom 2
#5 Austria 1
#6 Denmark 1

Patent filings per year

Chart showing DREWSEN VIGGOs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Drewsen Viggo 24
#2 Dorenfeldt Lauritz J 1

Latest patents

Publication Filing date Title
CA191608A Process of refining woodpulp
CA191609A Process of refining woodpulp
US1229422A Process of making fiber for paper, &c.
GB191105157A Improvements in and relating to the Production of Fibrous Material for Paper Making Textiles and other purposes.
CA135250A Fibre manufacture
US1119004A Apparatus for making bisulfite liquor, using pyrites.
US996225A Fiber-producing process and resulting fiber material.
US981625A Process for utilizing pyrites for bisulfite-of-lime manufacture, &c.
US798887A Process of manufacturing soft absorbent pulp from sugar-cane, cornstalks, sorghum, and analogous pithy stalks and product of such process.
US789418A Process of manufacturing products from cornstalks, sugar-cane, sorghum, or analogous pithy stalks and papers produced thereby.
US789416A Process of manufacturing products from cornstalks, sugar-cane, sorghum, or analogous pithy stalks and papers produced thereby.
US789417A Process of manufacturing products from cornstalks, sugar-cane, sorghum, or analogous pithy stalks and papers produced thereby.
GB190415297A Process of Manufacturing Products from Cornstalks, Sugar Cane and Analogous Pithy Stalks.
US853943A Process of manufacturing products from cornstalks, sugar-cane, &c.
US731290A Process of manufacturing products from cornstalks, sugar-cane, &c.
US730439A Process of making wood-pulp.
US726036A Process of utilizing sulfite lyes.
US646268A Apparatus for making bisulfite of lime.
CA54353A Gas separating process
CA202945A Reduction of waste liquors from soda pulp processes