Patents by Inventor Larry A. LaPree

Larry A. LaPree 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).

  • Portable emissions measurement adapter device
    Patent number: 7946160
    Abstract: A portable emissions measurement adapter device (PEMAD) for a vehicle exhaust system having an first exhaust pipe coupled to a second exhaust pipe defining an air inlet opening therebetween, includes an elongated tube having a first and a second end and adapted to fit through the second exhaust pipe to sealingly mate with the first exhaust pipe at the first end. The second end is adapted for operative connection to an emissions testing unit. No modification of the production vehicle is required to use the PEMAD.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: May 24, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Larry A. LaPree, Robert L. Brendel