Patents by Inventor Vivian Rose MacKenzie

Vivian Rose MacKenzie 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).

  • Synthesis of imidazole 2-thiones thiohydantoins
    Patent number: 7919630
    Abstract: The present invention provides a method of making an imidazole 2-thione which comprises the step(s) of reducing a thiohydantoin to said imidazole-2-thione.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: April 5, 2011
    Assignee: Allergan, Inc.
    Inventors: Michael E. Garst, Lloyd J. Dolby, Shervin Esfandiari, Alfred A. Avey, Jr., Vivian Rose MacKenzie, Charles David Muchmore
  • Process for preparing isomerically pure prodrugs of proton pump inhibitors
    Patent number: 7294716
    Abstract: Synthetic methods for preparing isomerically pure N-arylsulfonyl derivatives of proton pump inhibitors which include a substituted benzimidazole nucleus are shown by the synthetic schemes and experimental description.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: November 13, 2007
    Assignee: Allergan, Inc.
    Inventors: Michael E. Garst, Lloyd Jay Dolby, Shervin Esfandiari, Vivian Rose MacKenzie, Alfred Arthur Avey, Jr., David Charles Muchmore, Geoffrey Kenneth Cooper, Thomas C. Malone