Patents by Inventor John P. Carr

John P. Carr 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).

  • Long-term delivery device with early startup
    Patent number: 5223266
    Abstract: The present invention is directed to an improvement in a delivery device, the device comprising a wall that surrounds an internal lumen or compartment which contains a beneficial agent or medicament formulation, an expandable driving member and an optional density member, and having an a exit means, and wherein the improvement comprises prehydrating the delivery device as a means for advancing the beginning or startup of agent delivery from the delivery system to give earlier release of beneficial agent to the environment of use. An embodiment of the invention concerns a fluid reservoir in contact with the expandable driving member to provide prehydration of the device.
    Type: Grant
    Filed: April 27, 1992
    Date of Patent: June 29, 1993
    Assignee: Alza Corporation
    Inventors: James B. Eckenhoff, Terry L. Burkoth, John P. Carr, Jeremy C. Wright