Patents by Inventor Jean P. Maffrand

Jean P. Maffrand 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).

  • Xylane sulfates, process for their preparation, and anti-thrombosis and hypolipemic activity thereof
    Patent number: 4699900
    Abstract: This invention relates to new xylane sulfates having an apparent molar weight comprised between 7000 and 12000.This invention relates also to a process for their preparation by fractionation, and to the therapeutic application thereof as anti-thrombosis and hypolipemic agents.
    Type: Grant
    Filed: March 23, 1984
    Date of Patent: October 13, 1987
    Assignee: Sanofi S.A.
    Inventors: Alain Bayol, Jacqueline Lansen, Jean P. Maffrand, Jean-Marie Pereillo, Eric Vallee
  • Process for the preparation of thieno(2,3-c)- and thieno(3,2-c)pyridines
    Patent number: 4161599
    Abstract: This invention relates to a process for the preparation of derivatives having the formula: ##STR1## in which R is hydrogen or the carboxy group, comprising reacting a compound of the formula ##STR2## with nitrous acid, to give, respectively, the compounds of the formulae: ##STR3## and then removing the nitroso group from the compounds of the formulae (V) and (VI), respectively, either by reaction with an acid, to give the derivatives of the formulae (I) and (II), respectively, in which R is hydrogen, or by reaction with an alkali metal hydroxide and subsequent neutralization, to give the derivatives of the formulae (I) and (II), respectively, in which R is the carboxy group.
    Type: Grant
    Filed: May 23, 1978
    Date of Patent: July 17, 1979
    Assignee: PARCOR
    Inventor: Jean P. Maffrand