Patents by Inventor Jean-Pierre Duclos

Jean-Pierre Duclos 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).

  • Heparin compositions freed of mineral salts, particularly oxalates, and process for obtaining same
    Patent number: 4652555
    Abstract: This invention relates to oxalate-free preparations of heparin, particularly in the form of calcium salts of heparin, which can be used for the preparation of injectable solutions of heparin which have long storage life.The invention is also directed to a process for freeing heparin from its oxalate content, such as by fractional precipitations by alcohol in the presence of adjusted amounts of mineral salt, until the heparin precipitated contains less than about 70 ppm of oxalate but may contain less than about 30 ppm, preferably even less than 20 ppm.
    Type: Grant
    Filed: December 22, 1982
    Date of Patent: March 24, 1987
    Assignee: Choay S.A.
    Inventors: Jean Goulay, Jean Choay, Jean-Pierre Duclos