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LEDERER LEONHARD

Overview
  • Total Patents
    31
About

LEDERER LEONHARD has a total of 31 patent applications. Its first patent ever was published in 1894. It filed its patents most often in United Kingdom, United States and France. Its main competitors in its focus markets macromolecular chemistry and polymers, organic fine chemistry and textiles and paper are BRONNERT EMILE, BERL ERNST and KEMIRA CHEMICALS BV.

Patent filings in countries

World map showing LEDERER LEONHARDs patent filings in countries
# Country Total Patents
#1 United Kingdom 19
#2 United States 9
#3 France 2
#4 Denmark 1

Patent filings per year

Chart showing LEDERER LEONHARDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lederer Leonhard 29
#2 Leonhard Lederer 2

Latest patents

Publication Filing date Title
GB191207687A Process for the Manufacture of Cellulose Esters.
GB190911625A Improvement relating to the Manufacture of Cellulose-compounds in Definite Shapes.
GB190908945A Improvements in the Manufacture of Sheets or Objects from Cellulose-acetate.
GB190709537A Improvements relating to the Manufacture of Products or Compounds Resembling Celluloid.
GB190703103A Improvements relating to the Manufacture of Cellulose Esters.
US999236A Process of preparing cellulose esters in definite forms.
US902093A Process of separating cellulose esters from solutions.
GB190626502A Improvement in and connected with the Preparation of Acidylised Cellulose Solutions.
GB190626501A Process for Obtaining Cellulose Esters from Solutions.
US1028748A Filaments and other products obtained from cellulose compounds.
GB190619107A Improvements relating to Cellulose Compounds and to their application for the Manufacture of Filaments, Films, Ribbons and other Products.
US804960A Compound suitable as lacquer or varnish.
GB190506751A Improvements relating to Solutions of Organic Compounds suitable as Lacquers, Varnishes, Water-proofing and Impregnating Media, and for the Manufacture of Films, Filaments and Insulating Materials.
US954310A Process of producing acetyl-cellulose-coated material.
GB190307341A Process for the Manufacture of Variously Shaped Industrial Objects from Cellulose Compounds.
GB190211164A Process for Acetylising Cellulose and Materials Containing Cellulose.
US774677A Elastic horn-like substance and process of producing same.
GB190207088A Improvements in and relating to the Manufacture of Artificial Horn and similar substances
GB190011749A Improvements in the Manufacture of Acetyl-cellulose.
US671769A Process of producing acetylsalicylic acid.