Patents by Inventor Steven D. Walter

Steven D. Walter 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).

  • Circuits for increasing the reliability of an iontophoretic system
    Patent number: 6678555
    Abstract: Circuits are provided for increasing the reliability of an iontophoretic drug delivery system. Such circuits detect the failure of a crystal oscillator of the system, the failure of a voltage reference of the system, or the impending failure of a battery power source of the system.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: January 13, 2004
    Assignee: Vyteris, Inc.
    Inventors: Ronald J. Flower, Kenneth E. Garde, Steven D. Walter
  • Circuits for increasing the reliability of an iontophoretic system
    Publication number: 20030067358
    Abstract: Circuits are provided for increasing the reliability of an iontophoretic drug delivery system. Such circuits detect the failure of a crystal oscillator of the system, the failure of a voltage reference of the system, or the impending failure of a battery power source of the system.
    Type: Application
    Filed: April 22, 2002
    Publication date: April 10, 2003
    Inventors: Ronald J. Flower, Kenneth E. Garde, Steven D. Walter
  • Circuits for increasing the reliability of an iontophoretic system
    Patent number: 6385488
    Abstract: Circuits are provided for increasing the reliability of an iontophoretic drug delivery system. Such circuits detect the failure of a crystal oscillator of the system, the failure of a voltage reference of the system, or the impending failure of a battery power source of the system.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: May 7, 2002
    Assignee: Vyteris, Inc.
    Inventors: Ronald J. Flower, Kenneth E. Garde, Steven D. Walter
  • METHODS FOR IMPLEMENTING CURRENT DELIVERY PROFILES USED IN AN IONTOPHORETIC SYSTEM
    Publication number: 20010009983
    Abstract: An iontophoretic system is provided, including a patch and a controller. The patch includes a plurality of electrodes electrically connectable to the controller and through which current is applied by the controller to the skin. The controller includes at least one current delivery profile, an input device, a control circuitry, and circuitry for generating the patch current. The current delivery profile is an element that can be changed independently of the other components of the controller. The control circuitry selects a current delivery profile using an input from the input device, and causes the current generating circuitry to generate and apply current to the patch electrodes in accordance with the read current delivery profile.
    Type: Application
    Filed: September 29, 1997
    Publication date: July 26, 2001
    Applicant: DRUG DELIVERY TECHNOLOGIES, INC.
    Inventors: STEVEN D. WALTER, KENNETH E. GARDE, RONALD J. FLOWER