Patents by Inventor James F. Graf, Jr.

James F. Graf, Jr. 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).

  • Airtight waste solution sampling apparatus
    Patent number: 6793819
    Abstract: An airtight sampling apparatus for effectively and accurately sampling a waste solution including volatile organic compounds (VOC's) from a main waste solution conduit having a first pressure P1, is provided.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: September 21, 2004
    Assignee: Xerox Corporation
    Inventors: Thomas B. Glenwright, Warren R. Smith, Brian L. Spencer, James F. Graf, Jr.