Patents by Inventor Margaret A. McGowan

Margaret A. McGowan 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).

  • Liquid suspensions of nitrofurantoin
    Patent number: 5178880
    Abstract: Compositions, for the administration of nitrofurantoin to a human or other animal subject, comprising:(a) a safe and effective amount of nitrofurantoin particulates having a surface consisting of nitrofurantoin monohydrate, wherein said particulates have a mean particle size greater than about 200 mesh size;(b) nitrofurantoin monohydrate;(c) an effective amount of a suspending agent; and(d) water;wherein the pH of said composition is from about 1 to about 6; and said nitrofurantoin monohydrate is dissolved in said water at saturation level. The nitrofurantoin of this invention are highly efficacious for the oral delivery of nitrofurantoin.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: January 12, 1993
    Assignee: Norwich Eaton Pharmaceuticals, Inc.
    Inventors: Vijay Shahi, Margaret A. McGowan, Michael J. Kane