Patents by Inventor Elizabeth M. Schornak

Elizabeth M. Schornak 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).

  • Inorganic fiber substrates for exhaust systems and methods of making same
    Publication number: 20030165638
    Abstract: A method for rigidifying a fiber-based paper substrate for use in the exhaust system of a combustion device. In the method, a green ceramic fiber-based paper substrate is impregnated with an impregnating material. The impregnated substrate is fired to form a rigidified substrate that is suitable for use in the exhaust system of a combustion device. This rigidification process is performed at least once and, preferably, two or more times.
    Type: Application
    Filed: January 8, 2003
    Publication date: September 4, 2003
    Inventors: John W. Louks, Thomas E. Wood, Zhongshu Tan, Elaine M. Yorkgitis, Timothy J. Femrite, Elizabeth M. Schornak, Juan A. Munoz, Paul S. Werner
  • Pocket photo album page
    Patent number: D526681
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: August 15, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Charles R. Kleissler, Donald L. Pochardt, Elizabeth M. Schornak
  • Pocket photo album page
    Patent number: D530369
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: October 17, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Charles R. Kleissler, Donald L. Pochardt, Elizabeth M. Schornak
  • Pocket photo album page
    Patent number: D532819
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: November 28, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Charles R. Kleissler, Donald L. Pochardt, Elizabeth M. Schornak