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LEVINSTEIN LTD

Overview
  • Total Patents
    76
About

LEVINSTEIN LTD has a total of 76 patent applications. Its first patent ever was published in 1895. It filed its patents most often in United Kingdom, United States and France. Its main competitors in its focus markets basic materials chemistry, organic fine chemistry and textiles and paper are SOCIETE POUR L'INDUSTRIE CHIMIQUE A BALE, ALTHOUSE TERTRE and MATIERES COLORANTES COMP FRANC.

Patent filings in countries

World map showing LEVINSTEIN LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 53
#2 United States 17
#3 France 5
#4 Spain 1

Patent filings per year

Chart showing LEVINSTEIN LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Levinstein Ivan 9
#2 Levinstein Herbert 6
#3 Baddiley James 4
#4 Mensching Carl 4
#5 Herz Richard 3
#6 Morgan Gilbert Thomas 1
#7 Menschling Carl 1
#8 Max Wyler 1
#9 Walter Bader 1
#10 Wyler Max 1

Latest patents

Publication Filing date Title
US1358490A Sulfur dyestuff
GB134250A Production of Benzyl Chloride and Benzal Chloride and of Certain Homologues and Substitution Products of these Compounds.
GB124589A New Sulphur Dyestuff.
US1396913A Production of aminoalkylesters and of alkylaminoalkylesters of para aminobenzoic acid
GB111328A Improvements in the Production of Aminoalkylesters and of Alkylaminoalkylesters of Para Aminobenzoic Acid.
US1221077A Alkylarylamin production.
GB191416890A Preparation of Sulpho Compounds of Hydrogenised Fats and Oils, and of Compositions therewith.
GB191408569A The Production of New Dyestuffs and their Utilisation.
GB191329359A Improvements in and connected with the Printing of Textile Fabrics and the like.
GB191328569A Production of Fast Shades and New Dyestuffs therefor.
US1232056A Production of fast shades on vegetable fibers and dyestuffs therefor.
US1185413A Production of fast orange, red, or brown shades on vegetable fibers and dyestuffs therefor.
GB191325547A Improvements in and relating to Azo Dyestuffs.
GB191304316A Improvements in and connected with the Printing of Textile Fabrics and the like.
GB191303427A Improvements in the Production of Fast Coloured Prints.
GB191301435A Improvements related to the Production of Fast Shades on Vegetable Fibres and Dyestuffs therefor.
GB191301436A Improvements in the Production of Fast Shades on Vegetable Fibres and Dyestuffs therefor.
GB191229021A Improvements in and connected with the Printing of Textile Fabrics and the like.
GB191228296A Improvements in the Production of Fast Shades on Vegetable Fibres and Dyestuffs therefor.
GB191227525A Improvements in the Production of Fast Orange, Red or Brown Shades on Vegetable Fibres and Dyestuffs therefor.