Patents by Inventor James E. Chastain

James E. Chastain 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).

  • Counter pressure device for ophthalmic drug delivery
    Patent number: 7402156
    Abstract: A counter pressure device for ophthalmic drug delivery. The device includes a handle and a head coupled to a distal end of the handle. The head comprises a curved, concave surface for contacting the conjunctiva and having a notch for removably receiving a cannula. The device minimizes or prevents drug reflux and facilitates drug placement during ophthalmic drug delivery.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: July 22, 2008
    Assignee: Alcon, Inc.
    Inventors: Charles C. Kiehlbauch, James E. Chastain, Daniel P. Leavitt, Randal L. Berardi