Patents by Inventor James L. Heckman

James L. Heckman 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).

  • Liquid ventilator
    Patent number: 6105572
    Abstract: A liquid ventilator having a dual loop, single pump configuration is disclosed. The liquid ventilator preferably utilizes two three-way valves for routing liquid from a reservoir in a regeneration apparatus and to a patient's pulmonary system, and back to the reservoir again. A controller controls the configuration of the three-way valves and the pump speed of the motor to allow user control over the parameters of inspiration and expiration.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: August 22, 2000
    Assignees: Alliance Pharmaceutical Corp., Temple University of the Commonwealth System of Higher Education
    Inventors: Thomas H. Shaffer, Marla R. Wolfson, James L. Heckman, John Hoffman