Patents by Inventor Andrei M. Sakharov

Andrei M. Sakharov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for preparing .alpha.-substituted .omega.-hydroperfluoroalkanes
    Patent number: 5495034
    Abstract: A method for the preparation of .alpha.-substituted .omega.-dihydroperluoroalkane derivatives of the general formula H(CF.sub.2 CF.sub.2).sub.n R wherein R=H or COOH, and n=1-10 is characterized by oxidizing .alpha., .alpha., .omega.-trihydroperfluoroalcohols with an oxygen gas or an oxygen-containing gas in the presence of a homogeneous copper catalyst and an alkaline agent in an organic solvent with subsequent isolation of the desired product.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: February 27, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Irina P. Skibida, Andrei M. Sakharov, Jury L. Bakhmutov, Vladimir F. Denisenkow, Nina P. Martynova
  • Process for the production of oxyacids from carbohydrates
    Patent number: 5484914
    Abstract: A method for the production of oxyacids from carbohydrates by catalytic oxidation with an oxygen containing gas in an alkaline medium, wherein the oxidation is carried out by homogeneous catalysis in the presence of a catalytic amount of an ion of a transition metal selected from the group consisting of Cu, Cr, Co, Ni, Fe, V, Ti, Mn and mixtures thereof.
    Type: Grant
    Filed: May 24, 1994
    Date of Patent: January 16, 1996
    Assignee: Cerestar Holding B.V.
    Inventors: Irina P. Skibida, Andrei M. Sakharov, Aleksej M. Sakharov