Patents by Inventor Regine J. A. Mazars

Regine J. A. Mazars 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).

  • Medicinal products and pure preparations of melarsomine dihydrochloride, process for obtaining them and intermediate products obtained
    Patent number: 5459263
    Abstract: The medicinal product comprises as active principle a melarsomine hydrochloride preparation having a purity of between 98.5 and 100%. The process for obtaining this preparation is stated essentially as follows:step 1, trichlorotriazine (TCT) is converted to diaminochlorotriazine (DCT) in an ammoniacal medium;step 2, the DCT is converted to melarsen acid hydrochloride (MAH) in the presence of arsanilic acid;step 3, the MAH is reduced to melarsen oxide dihydrate; andstep 4, the melarsen oxide dihydrate is converted to melarsomine dihydrochloride in the presence of cysteamine hydrochloride. In each step, a purified preparation of the corresponding intermediate product, or final product in step 4, is obtained.
    Type: Grant
    Filed: December 2, 1992
    Date of Patent: October 17, 1995
    Assignee: Rhone Mereiux
    Inventors: Robert Floc'H, Jean-Pierre Etchegaray, Gerard Wolf, Patrick Lubert, Regine J. A. Mazars