Patents by Inventor Jonathan B. Zung

Jonathan B. Zung 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).

  • Spirostanyl glycosidal crystals
    Patent number: 5804562
    Abstract: Crystalline spirostanyl glycosides and processes for making them are disclosed. The crystalline spirostanyl glycosides are useful for treatment of hypercholesterolemia or atherosclerosis.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: September 8, 1998
    Assignee: Pfizer Inc.
    Inventors: Douglas John Allen, Richard A. Buzon, Michael P. Deninno, Harry Austin Watson, Jr., Jonathan B. Zung
  • Spirostanyl glycosidal crystalline monohydrate
    Patent number: 5760009
    Abstract: A crystalline monohydrate of (3.beta.,5.alpha.,25R)-3-?(.beta.-D-cellobiosyl)oxy!spirostan-11-one that is useful as a hypocholesterolemic or antiatherosclerosis agent.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: June 2, 1998
    Assignee: Pfizer Inc.
    Inventors: Douglas J. M. Allen, Harry A. Watson, Jr., Jonathan B. Zung