Patents by Inventor Kenneth Paul Shephard

Kenneth Paul Shephard 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).

  • Crystalline ceftiofur free acid
    Patent number: 5721359
    Abstract: Anhydrous and crystalline free acid form of the cephalosporin antiobiotic ceftiofur, processes for its manufacture, and pharmaceutical composition containing it are provided.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: February 24, 1998
  • Process for the preparation of 17.alpha.-hydroxyprogesterones and corticoids from androstenes
    Patent number: 4041055
    Abstract: This invention discloses a general process for the production of corticoids from androstenes. This invention provides an economically viable alternative synthesis of 17.alpha.-hydroxyprogesterones and the corticoids.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: August 9, 1977
    Assignee: The Upjohn Company
    Inventors: Kenneth Paul Shephard, Verlan H. Van Rheenen