Patents by Inventor Roger Hassell

Roger Hassell 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).

  • Patent number: 5487753
    Abstract: A rate responsive pacemaker measures a metabolic demand parameter of a patient. The metabolic demand parameter is converted to a corresponding metabolic indicated rate which determines the pulse rate of the pacer. The converting is based on a profile dependent on the predicted anaerobic threshold level of the patient, as well as his or her age and physical fitness.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: January 30, 1996
    Assignee: Telectronics Pacing Systems, Inc.
    Inventors: Dean J. MacCarter, Don Hopper, Daniel Cooper, Roger Hassell