Patents by Inventor Derek V. Stern

Derek V. Stern 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).

  • Ventilator
    Patent number: D270276
    Type: Grant
    Filed: January 23, 1981
    Date of Patent: August 23, 1983
    Assignee: Flettner Ventilator Limited
    Inventors: Derek V. Stern, Noel W. Fleury