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WOLFFENSTEIN RICHARD

Overview
  • Total Patents
    18
About

WOLFFENSTEIN RICHARD has a total of 18 patent applications. Its first patent ever was published in 1894. It filed its patents most often in United Kingdom, United States and Austria. Its main competitors in its focus markets organic fine chemistry, basic materials chemistry and materials and metallurgy are SHANGHAI CHEMSPEC CORP, J D RIEDEL E DE HAEEN A G and FAIRMOUNT CHEM.

Patent filings in countries

World map showing WOLFFENSTEIN RICHARDs patent filings in countries
# Country Total Patents
#1 United Kingdom 11
#2 United States 5
#3 Austria 1
#4 Spain 1

Patent filings per year

Chart showing WOLFFENSTEIN RICHARDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wolffenstein Richard 17
#2 Boeters Oskar 3

Latest patents

Publication Filing date Title
ES110927A1 A process for obtaining quinoline derivatives.
GB191416585A Process for the Manufacture of Esters of Oxyquinolines.
GB191305811A Process for the Manufacture of Esters of Polyhalogen-substituted Alcohols with Therapeutically Active Acids.
US1072289A Esters for polyhalogen compounds of alcohols with therapeutically-active acids.
GB191127562A Improvements relating to Esters of Acidyl-salicylic Acids.
US1063099A Acidylsalicylic acid ester and process of making same.
GB191019494A Improvements relating to Soaps suitable for Washing and Bleaching.
GB190816823A Process for the Manufacture of Soaps containing Peroxides.
GB190717521A Improvements in the Manufacture of Nitro-compounds.
US864217A Process of concentrating nitric acid.
GB190628449A Improvements in Process for the Concentration of Dilute Nitric Acid.
GB190613828A Process for the Manufacture of Hydrogen Peroxide.
US870148A Process of producing hydrogen peroxid.
US800197A Process for the preservation of feathers.
GB190311712A Process for the Preservation of Ornamental Bird's Feathers.
GB190100754A Improvements in the Manufacture of Peroxide Preparations.
GB189404423A Improvements in the Development or Preparation of High Percentage and of Chemically Pure Super-oxide of Hydrogen.