Patents by Inventor Albert Libke

Albert Libke 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).

  • Plug valve with improved flow capacity
    Publication number: 20060108557
    Abstract: An apparatus is provided that in some embodiments provide an improved plug valve having a plug with a curved cylindrical sealing surface and a substantially flat second surface. An inlet region of the housing has a constant cross-sectional flow area.
    Type: Application
    Filed: November 22, 2004
    Publication date: May 25, 2006
    Inventors: Albert Libke, Paranthaman Janagan