Patents by Inventor Ronald Hollister

Ronald Hollister 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).

  • Apparatus for controlling the flow of fluids
    Patent number: 6321782
    Abstract: An apparatus for controlling the flow and measuring the pressure of fluids comprising at least one fluid inlet portion adapted for fluid connection to a fluid source, at least one fluid outlet portion fluidly connected to the fluid inlet portion, a first device for controlling the flow and measuring the pressure of fluid flowing into the fluid inlet portion, and a second device for controlling the flow and measuring the pressure of fluid flowing through the fluid outlet portion.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: November 27, 2001
    Inventor: Ronald Hollister