Patents by Inventor William John Mittelsteadt

William John Mittelsteadt 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).

  • Crush resistant latex topcoat composition for fiber cement substrates
    Patent number: 8202578
    Abstract: A coated fiber cement article in the form of an unattached fiber cement board substrate having a first major surface at least a portion of which is covered with a crush resistant final topcoat composition comprising a multistage latex polymer, and a method for making a crush resistant coated fiber cement article by coating a fiber cement board substrate with such a composition and stacking the coated boards.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: June 19, 2012
    Assignee: Valspar Sourcing, Inc.
    Inventors: T. Howard Killilea, Carl Lewis Cavallin, Shane Wesley Carter, William John Mittelsteadt, Glen Otto Vetter