Patents by Inventor Barry L. Farris

Barry L. Farris 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).

  • Plungerless syringe
    Patent number: 5102398
    Abstract: A hollow, molded, disposable, plastic syringe is provided with an air trap chamber in fluid communication with a collapsible container portion. With the air trap chamber extending upwardly from the container portion, air is trapped in the chamber when the container is collapsed to eject liquid out of the container.
    Type: Grant
    Filed: September 18, 1990
    Date of Patent: April 7, 1992
    Inventor: Barry L. Farris