Patents by Inventor Stephen P. Henney

Stephen P. Henney 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 toxic vapor analyzer
    Patent number: D367234
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: February 20, 1996
    Inventors: Stephen P. Henney, Joel Lieblein