Patents by Inventor Jonathan L. Benumof

Jonathan L. Benumof 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).

  • Double lumen tube adaptor and valve system for medical anesthesia circuits
    Patent number: 4489721
    Abstract: A double lumen tube adaptor and valve control system for lung anesthesia includes a housing having a pair of outlet ports with a pair of inlet ports aligned with the outlet ports and a common central inlet port communicating with a central passageway that is controllable by two separate valves for selectively communicating the common inlet port with both outlet ports, one outlet port for communicating the in line outlet and inlet ports.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: December 25, 1984
    Assignee: The Regents of the University of California
    Inventors: George T. Ozaki, Jonathan L. Benumof, Henrik W. Andersen