Patents by Inventor Douglas A. Rich

Douglas A. Rich 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).

  • Patent number: 11969424
    Abstract: This invention relates to the treatment of Pulmonary Hypertension with heart failure with preserved ejection fraction (PH-HFpEF). More specifically, embodiments of the invention provide compositions and methods useful for the treatment of PH-HFpEF employing the use of levosimendan.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: April 30, 2024
    Assignee: TENAX THERAPEUTICS, INC.
    Inventors: Stuart Rich, Douglas Randall, Douglas Hay
  • Patent number: 4885010
    Abstract: An improved scrubbing apparatus is disclosed which is particularly well suited for use in spray booths for extracting particulate matter entrained in a gas stream flowing therethrough. The scrubbing apparatus of the present invention combines an elongated throat and an elongated trough positioned therebelow which cooperate to define a first elongated constriction through which the gas stream is drawn. The trough also includes an angularly extended portion which defines a second constriction through which the gas stream is subsequently directed. Flood sheets are also provided across which a continous flow of liquid is passed which becomes atomized as it flows through the first and second constrictions so as to thereby effect a scrubbing of the gas stream and removal of the entrained particulate matter. The first constriction also serves to substantially reduce passage of air or gas thereacross when the apparatus is not in operation.
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: December 5, 1989
    Assignee: Gallagher-Kaiser Corporation
    Inventors: Douglas A. Rich, Paul N. Rick, James N. Bournias, Robert E. Lyons
  • Patent number: D619188
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: July 6, 2010
    Inventors: David Omley, Douglas Rich