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HENRY DREYFUS

Overview
  • Total Patents
    2,157
About

HENRY DREYFUS has a total of 2,157 patent applications. Its first patent ever was published in 1910. It filed its patents most often in Canada, United Kingdom and United States. Its main competitors in its focus markets textiles and paper, organic fine chemistry and macromolecular chemistry and polymers are FIRM OF J R GEIGY A G, BRITISH CELANESE and CHANGZHOU LINGDA CHEMICAL CO LTD.

Patent filings in countries

World map showing HENRY DREYFUSs patent filings in countries
# Country Total Patents
#1 Canada 1,071
#2 United Kingdom 616
#3 United States 399
#4 France 60
#5 Germany 9
#6 Switzerland 1
#7 Ireland 1

Patent filings per year

Chart showing HENRY DREYFUSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Henry Dreyfus 402
#2 Ellis George Holland 184
#3 Taylor William Ivan 133
#4 Dickie William Alexander 96
#5 Moncrieff Robert Wighton 93
#6 Olpin Henry Charles 88
#7 Kinsella Edward 61
#8 Dreyfus Henry 59
#9 Finlayson Donald 51
#10 Pool William 50

Latest patents

Publication Filing date Title
GB586505A Improvements in textile materials having insecticidal properties
GB594138A Improvements in the manufacture of laminated fabrics
GB586201A Improvements relating to the manufacture of pneumatic tyres and of tyre-fabrics
GB576785A Improvements in or relating to the manufacture of cellulose
GB576510A Improvements in or relating to the production of cellulose
GB574532A Improvements in the manufacture of hydrogen cyanide
GB573778A Manufacture of aliphatic dienes
GB573324A Improvements relating to the extrusion of fused filament-forming compositions
GB573326A Improvements relating to the extrusion of fused filament-forming compositions
GB571954A Improvements in or relating to the production of artificial textile materials, foilsand the like
GB572017A Improvements relating to coating and impregnating compositions
GB571056A Colouration of textile materials
GB571695A Improvements relating to thermo-plastic polymeric materials
GB566863A Improvements in or relating to the manufacture of cellulose esters
GB594453A Improvements in or relating to organic derivatives of hydrazine
GB568504A Improvements relating to the treatment of materials of regenerated cellulose to improve their adhesion to rubber
GB565489A Improvements in the production of artificial filaments, films, foils and like materials
GB576131A Acid-resisting materials and articles made therefrom
US2381972A Production of ethyl cellulose
GB563287A Improvements in cellulose derivative compositions