Patents by Inventor William H. Leehr

William H. Leehr 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).

  • Patent number: 7373791
    Abstract: The present invention provides method of contemporaneously forming a particulate glass batch composition and reducing volatile components in an exhaust stream, comprising the steps of: (a) introducing an exhaust stream comprising one or more volatile components into a mixing chamber; (b) adding a particulate glass batch precursor composition comprising at least one reagent material that is reactive with at least one of the one or more volatile components of the exhaust stream into the mixing chamber; (c) reacting at least a portion of the particulate glass batch precursor composition with at least a portion of the one or more volatile components of the exhaust stream in the mixing chamber to form a particulate glass batch composition and reduce the amount of the one or more volatile components in the exhaust stream; (d) separating the particulate glass batch composition from the exhaust stream; and (e) venting the exhaust stream having a reduced amount of volatile components to the atmosphere.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: May 20, 2008
    Assignee: PPG Industries Ohio, Inc.
    Inventor: William H. Leehr