Patents by Inventor David Lollar

David Lollar 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).

  • Brazed plate fin heat exchanger
    Publication number: 20050155750
    Abstract: A fin collar having a shape that enhances flux application and brazing clad flow into the tube to fin joint to provide an improved thermal and structural bond.
    Type: Application
    Filed: January 20, 2004
    Publication date: July 21, 2005
    Inventors: Paul Mitchell, Michael Heidenreich, Roger Loomis, James Harris, David Davis, David Lollar