Patents by Inventor John VanNice

John VanNice 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).

  • Process for mixing modified bitumen by extrusion
    Patent number: 7967905
    Abstract: Provided is a method of mixing a modified bitumen composition and feeding one or more polymeric materials to an extruder, together with asphalt fed at more than one location along a length of the extruder. Improved mixing and elimination of asphalt melting in the production of rolled goods and other products is improved.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: June 28, 2011
    Assignee: Johns Manville
    Inventors: Raymond C. Swann, Klaus Friedrich Gleich, Walter Alexander Johnson, Michael John Block, John VanNice
  • Process for mixing modified bitumen by extrusion
    Publication number: 20090145331
    Abstract: Provided is a method of mixing a modified bitumen composition and feeding one or more polymeric materials to an extruder, together with asphalt fed at more than one location along a length of the extruder. Improved mixing and elimination of asphalt melting in the production of rolled goods and other products is improved.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 11, 2009
    Inventors: Raymond C. Swann, Klaus Friedrich Gleich, Walter Alexander Johnson, Michael John Block, John VanNice