Patents by Inventor Michael D. Howerton

Michael D. Howerton 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).

  • Combinational valve system
    Patent number: 7647944
    Abstract: A combinational valve system for efficiently controlling the flow of a fluid through a valve. The combinational valve system includes a channel member including a first port and a second port fluidly connected to the first port, a first valve member attached to the channel member and a second valve member attached to the channel member. The first valve member regulates a flow of the fluid through the first port and the second valve member regulates a flow of the fluid through the second port.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: January 19, 2010
    Inventor: Michael D. Howerton