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ST LAWRENCE CORP LTD

Overview
  • Total Patents
    16
About

ST LAWRENCE CORP LTD has a total of 16 patent applications. Its first patent ever was published in 1952. It filed its patents most often in Canada, France and United Kingdom. Its main competitors in its focus markets chemical engineering, macromolecular chemistry and polymers and textiles and paper are CUEROS INDUSTRIALIZADOS DEL BA, BLC THE LEATHER TECHNOLOGY CEN and GUIDI LORIS.

Patent filings in countries

World map showing ST LAWRENCE CORP LTDs patent filings in countries
# Country Total Patents
#1 Canada 4
#2 France 4
#3 United Kingdom 4
#4 Austria 1
#5 Germany 1
#6 Denmark 1
#7 Finland 1

Patent filings per year

Chart showing ST LAWRENCE CORP LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ehrensperger Hans 6
#2 Hans Ehrensperger 1

Latest patents

Publication Filing date Title
GB798780A Improvements in or relating to the tanning of leather
GB798779A Improvements in or relating to the tanning of leather
DE1005234B Process for tanning skins and skins
GB777474A Leather making
GB732116A Improvements in or relating to the treatment of ligneous liquors
CA492870A Process for the recovery of valuable constituents from waste sulphite liquor
CA530935A Process of making leather
CA540049A Process of making leather
CA530934A Process of making leather