Patents by Inventor William C. Emheiser

William C. Emheiser 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).

  • Self-priming intravenous filter
    Patent number: 4906260
    Abstract: This invention is directed to a membrane-type filter device. Vents located opposite the hydrophilic membrane remove entrapped gases in the inlet chamber of the housing. There are preferably two such vents on either end of the inlet chamber, of which the corners are preferably non-rectangular, and which remove entrapped gases from the fluid without regard to filter device orientation.
    Type: Grant
    Filed: April 12, 1989
    Date of Patent: March 6, 1990
    Assignee: Gelman Sciences, Inc.
    Inventors: William C. Emheiser, Robert Corbett