Patents by Inventor Patrick Pachih Chen

Patrick Pachih Chen 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).

  • Surface treating tissue webs via patterned spraying
    Patent number: 7988828
    Abstract: Tissue webs, such as are useful for making bath tissue, can be surface-treated in a pattern with selected papermaking chemicals, such as debonders and strength agents, to selectively improve the directional properties of the resulting tissue product, particularly the cross-machine direction strength properties. The pattern can be applied to the tissue sheet by spraying the selected chemical outwardly through a pattern of open areas in the shell of a rotating hollow roll, where the pattern of open areas corresponds to the desired pattern of chemical deposited on the surface of the tissue web.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: August 2, 2011
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Michael Alan Hermans, Patrick Pachih Chen, Claudia H. Javenkoski, Robert Eugene Krautkramer, Daniel Robert Sprangers
  • Surface treating tissue webs via patterned spraying
    Publication number: 20100078141
    Abstract: Tissue webs, such as are useful for making bath tissue, can be surface-treated in a pattern with selected papermaking chemicals, such as debonders and strength agents, to selectively improve the directional properties of the resulting tissue product, particularly the cross-machine direction strength properties. The pattern can be applied to the tissue sheet by spraying the selected chemical outwardly through a pattern of open areas in the shell of a rotating hollow roll, where the pattern of open areas corresponds to the desired pattern of chemical deposited on the surface of the tissue web.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 1, 2010
    Inventors: Michael Alan Hermans, Patrick Pachih Chen, Claudia H. Javenkoski, Robert Eugene Krautkramer, Daniel Robert Sprangers
  • Soft durable tissue
    Patent number: 7377995
    Abstract: Single-ply throughdried tissue sheets, particularly suitable as bath tissue, are produced with at least three layers. One or both of the outer layers suitably contain predominantly softwood fibers and a chemical bonding agent. One or more of the inner layers suitably contains a chemical debonder. The resulting tissues have a high level of durability and softness.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: May 27, 2008
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Patrick Pachih Chen, Michael Alan Hermans, Pau-Lin Pawar, Thomas Gerard Shannon