Patents by Inventor Greg Walcott

Greg Walcott 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).

  • Dual capacitor biphasic defibrillator waveform generator employing selective connection of capacitors for each phase
    Patent number: 6047211
    Abstract: An implantable defibrillator/cardioverter which generates a biphasic defibrillation/cardioversion waveform including a pulse generator comprising two capacitors and a pair of switches for connecting the capacitors in parallel during a first phase and in series during a second phase. The first phase has a small "tilt" between the leading edge voltage and the trailing edge voltage. The second phase has a leading edge voltage which is approximately twice the trailing edge voltage of the first phase.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: April 4, 2000
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: David K. Swanson, Raymond E. Ideker, Greg Walcott
  • Dual capacitor biphasic defibrillator waveform generator employing selective connection of capacitors for each phase
    Patent number: 5411525
    Abstract: An implantable defibrillator/cardioverter which generates a biphasic defibrillation/cardioversion waveform including a pulse generator comprising two capacitors and a pair of switches for connecting the capacitors in parallel during a first phase and in series during a second phase. The first phase has a small "tilt" between the leading edge voltage and the trailing edge voltage. The second phase has a leading edge voltage which is approximately twice the trailing edge voltage of the first phase.
    Type: Grant
    Filed: January 30, 1992
    Date of Patent: May 2, 1995
    Assignees: Cardiac Pacemakers, Inc., Duke University
    Inventors: David K. Swanson, Raymond E. Ideker, Greg Walcott