Patents by Inventor Jean-Claude Michel

Jean-Claude Michel 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).

  • Selenohydroxy acids and their derivatives, applications in nutrition, cosmetics and pharmaceutics
    Patent number: 7381416
    Abstract: The purpose of this invention is: new selenohydroxy acid compounds and their derivatives; their process for the preparation; use of the new compounds as precursors of L(+)-selenomethionine and/or source of selenium in human or animal nutrition, in cosmetics and pharmaceutics; and nutritional, cosmetic and pharmaceutical compositions containing them.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: June 3, 2008
    Assignee: Tetrahedron SAS
    Inventors: Irène Erdelmeir, Jean-Claude Michel, Marc Moutet, Jean-Claude Yadan
  • New selenohydroxy acids and their derivatives, applications in nutrition, cosmetics and pharmaceutics
    Publication number: 20060105960
    Abstract: The purpose of this invention is: new selenohydroxy acid compounds and their derivatives; their process for the preparation; use of the said new compounds as precursors of L(+)-selenomethionine and/or source of selenium in human or animal nutrition, in cosmetics and pharmaceutics; and nutritional, cosmetic and pharmaceutical compositions containing them.
    Type: Application
    Filed: July 22, 2005
    Publication date: May 18, 2006
    Inventors: Irene Erdelmeir, Jean-Claude Michel, Marc Moutet, Jean-Claude Yadan
  • Process for the preparation of lactames through oxime isomerization
    Patent number: 4211700
    Abstract: The invention relates to a process for the preparation of lactames according to the so-called "Beckmann rearrangement" which consists in isomerizing oximes in a sulfuric solution, the weight ratio percentage of sulfuric acid to the combined amount of sulfuric acid and water being raised to a value above that of the sulfuric solution feed.
    Type: Grant
    Filed: February 15, 1979
    Date of Patent: July 8, 1980
    Assignee: Ato Chimie
    Inventors: Jean-Claude Michel, Philippe Potin