Patents by Inventor Michael B. Gentzler

Michael B. Gentzler 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).

  • Polymorphic form of montelukast sodium
    Patent number: 7560559
    Abstract: The invention provides novel polymorphic form of montelukast sodium, as well as methods of using and pharmaceutical compositions containing saud novel form. Also provided are montelukast sodium: acetonitrile solvates, which are intermediates in the formation of crystalline montelukast sodium.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: July 14, 2009
    Assignees: Merck & Co., Inc., Merck Frosst Canada & Co.
    Inventors: Jun-Hong Chou, Michael B. Gentzler, James N. Michaels, Cynthia Bazin, Sophie-Dorothee Clas, Chad Dalton, Michael Guojie Wu