Patents by Inventor Hillard W. Johnson

Hillard W. Johnson 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).

  • Delivery system for pharmaceutical agents encapsulated with oils
    Patent number: 5853740
    Abstract: The present invention provides a uniform dispersion in aqueous medium of droplets comprising: (a) a core comprising water, a non-toxic C.sub.2 -C.sub.5 alkanol, a water-soluble drug, and a surfactant, and (b) a coating surrounding the core comprising one or more pharmaceutically acceptable oils. The compositions of the present invention are particularly useful for the oral delivery of therapeutic agents because of their potential for taste masking, prolonged action, and protection of the drug against the external environment and enzyme entrapment.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: December 29, 1998
    Assignee: Abbott Laboratories
    Inventors: Mou-Ying Fu Lu, Akwete L. Adjei, Hillard W. Johnson