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LEON LILIENFELD

Overview
  • Total Patents
    263
About

LEON LILIENFELD has a total of 263 patent applications. Its first patent ever was published in 1904. It filed its patents most often in United Kingdom, United States and France. Its main competitors in its focus markets textiles and paper, macromolecular chemistry and polymers and machines are LEON LILIENFELD DR, LILIENFELD LEON DR and LIPACO SA.

Patent filings in countries

World map showing LEON LILIENFELDs patent filings in countries
# Country Total Patents
#1 United Kingdom 143
#2 United States 91
#3 France 19
#4 Ireland 8
#5 USSR (Union of Socialist Soviet Republics) 2

Patent filings per year

Chart showing LEON LILIENFELDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Leon Lilienfeld 94
#2 Lilienfeld Leon 19
#3 Klara Jahoda 1
#4 Adele Rankl 1

Latest patents

Publication Filing date Title
GB507137A Process for the manufacture of cellulose derivatives and of treating fibrous materials therewith
GB507138A Finished fibrous materials and process for making same
GB503830A Manufacture of cellulose derivatives and of artificial filaments, films and other shaped structures therefrom
GB491488A Improvements in and relating to cellulose derivatives and shaped structures made therefrom
GB490510A Improvements in and relating to the manufacture of artificial structures and other useful articles from cellulose derivatives
GB474223A Manufacture of cellulose derivatives and of shaped structures therefrom
GB472934A Improvements in and relating to the manufacture of artificial structures
GB472888A Improvements in and relating to the manufacture of artificial structures
GB470747A Manufacture of new cellulosic materials and shaped structures therefrom
GB470746A Improvements in and relating to the manufacture of artificial structures and other useful articles from cellulose derivatives
GB469007A Manufacture of compositions containing cellulose derivatives and of shaped structures therefrom
GB462712A Manufacture of cellulose derivatives and of artificial filaments, films and other shaped structures therefrom
GB462713A Manufacture of cellulose derivatives and of artificial filaments, films and other shaped structures therefrom
GB462283A Manufacture of cellulose derivatives and of artificial filaments, films and other shaped structures therefrom
GB462456A Manufacture of cellulose derivatives and of artificial filaments, films and other shaped structures therefrom
GB459124A Manufacture of cellulose derivatives and of artificial filaments, film and other shaped structures therefrom
GB459122A Manufacture of cellulose derivatives and of artificial filaments, films and other shaped structures therefrom
GB459123A Manufacture of cellulose derivatives and of artificial filaments, films and other shaped structures therefrom
GB457031A Manufacture of shaped structures from cellulose derivatives
US2103952A Carbohydrate derivatives and processes for making the same