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SHAWINIGAN CHEM LTD

Overview
  • Total Patents
    458
About

SHAWINIGAN CHEM LTD has a total of 458 patent applications. Its first patent ever was published in 1931. It filed its patents most often in Canada, United Kingdom and United States. Its main competitors in its focus markets macromolecular chemistry and polymers, materials and metallurgy and organic fine chemistry are EHNIKEM S P A, ELEKTROCHEM WERKE MUENCHEN AG and ENICHEM ANIC SPA.

Patent filings in countries

World map showing SHAWINIGAN CHEM LTDs patent filings in countries

Patent filings per year

Chart showing SHAWINIGAN CHEM LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Johnson Herbert S 25
#2 Germain Leo M 21
#3 Rees Richard W 19
#4 Andersen Arthur H 12
#5 Eaton Milton 12
#6 Kennedy Douglas J 10
#7 Hayes Ernest R 8
#8 Morrison George O 8
#9 Collins Henry Michael 8
#10 Lanthier Raymond 8

Latest patents

Publication Filing date Title
GB1133510A Autocondensation of acetone
GB1092030A Copolymer of vinyl acetate and acrylamide
US3443900A Densification of acetylene black
US3365409A Vinyl acetate-acrylamide copolymer emulsions
GB1066137A Reduction of isomeric impurity in diphenylol propane
US3374205A Production of peracetic acid
US3268496A Continuous process for the polymerization of vinyl acetate in hydrocarbons
US3305661A Operation of electrically heated fluidized beds
US3304325A Dechlorination of chloroacetic acids
GB1023878A Production of alkylene oxides
GB1031018A Production of carbon disulphide
US3379737A Epoxide production
GB1012284A Electrothermic production of carbon disulphide by fluidized bed techniques
GB920760A Improvements in and relating to polymerisation
GB928907A Improvements in and relating to the production of hydrogen cyanide
GB937359A Hydrogen peroxide
GB927975A Improvements in and relating to polymers
US3162678A Aqueous peracetic acid recovery
US3207574A Briquetting of sodium cyanide
GB921510A Improvements in and relating to the catalytic preparation of mesityl oxide from acetone