Patents by Inventor W. Craig Marx

W. Craig Marx 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).

  • Coated clumping litter comprising non-swelling particles
    Patent number: 7429421
    Abstract: A clumping animal litter is disclosed that includes a non-swelling particle and a swelling agent coated on the surface of the non-swelling particle. In one embodiment, agglomerated non-swelling clay fines are coated.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: September 30, 2008
    Assignee: Nestec, S.A.
    Inventors: Phillip Brent Greene, James Dean Job, James Max Kearbey, Cesar J. Mauras, W. Craig Marx