Patents by Inventor Jeffrey D. Matthews

Jeffrey D. Matthews 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).

  • Absorbent article containing a foam-formed unitary stratified composite
    Patent number: 6518479
    Abstract: A unitary stratified composite composed of a first stratum and a second stratum integrally connected by a transition zone is disclosed. The first stratum serves as a liquid acquisition stratum that rapidly acquires and then transfers liquid to the second stratum. The second stratum serves to withdraw liquid from the first stratum and further serves as a temporary storage stratum. Methods for forming the unitary stratified composite are also disclosed.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: February 11, 2003
    Assignee: Weyerhaeuser Company
    Inventors: Peter A. Graef, Colin Elston, Daniel T. Bunker, Fred B. Howard, Jeffrey D. Matthews, Shahrokh A. Naieni, Charles E. Miller