Patents by Inventor Wen Zyo Schroeder

Wen Zyo Schroeder 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).

  • Patent number: 6156157
    Abstract: The invention relates to tissue products having improved softness properties and methods of making them. Specifically, improved softness is achieved by incorporating one or more softeners/debonders into the fiber furnish at the wet end of the tissue machine prior to formation, followed by a topical treatment with one or more softeners/debonders after the tissue web is dried. The result is a tissue product with added bulk and a smooth surface feel, both properties contributing to improved softness characteristics.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: December 5, 2000
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Wen Zyo Schroeder, Gary Vance Anderson, Duane Gerard Krzysik, Gary Lee Shanklin, Michael John Smith
  • Patent number: 6120644
    Abstract: The invention relates to tissue products having improved softness properties and methods of making them. Specifically, improved softness is achieved by incorporating a cationic amidoamine into the fiber furnish at the wet end of the tissue machine prior to formation and/or by topical addition to the tissue web. One or more softeners/debonders can be added to the furnish and/or topically applied to the tissue web after the tissue web is dried. The result is a tissue product with added bulk and a smooth surface feel, both properties contributing to improved softness characteristics.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: September 19, 2000
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Wen Zyo Schroeder, Gary Lee Shanklin
  • Patent number: 6030675
    Abstract: The invention relates to tissue products having improved softness properties and methods of making them. Specifically, improved softness is achieved by incorporating a cationic silicone amidoamine ester or phosphate and, optionally, one or more softeners/debonders into the fiber furnish at the wet end of the tissue machine prior to formation, followed by an optional topical treatment with a cationic silicone amidoamine ester or phosphate and/or one or more softeners/debonders after the tissue web is formed. The result is a tissue product with added bulk and a smooth surface feel, both properties contributing to improved softness characteristics.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: February 29, 2000
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Wen Zyo Schroeder, Gary Lee Shanklin
  • Patent number: 5904810
    Abstract: The invention relates to tissue products having improved softness properties and methods of making them. Specifically, improved softness is achieved by incorporating a cationic amidoamine into the fiber furnish at the wet end of the tissue machine prior to formation and/or by topical addition to the tissue web. One or more softeners/debonders can be added to the furnish and/or topically applied to the tissue web after the tissue web is dried. The result is a tissue product with added bulk and a smooth surface feel, both properties contributing to improved softness characteristics.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: May 18, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Wen Zyo Schroeder, Gary Lee Shanklin
  • Patent number: 5882478
    Abstract: The softness of tissue products, such as facial and bath tissue, is improved by the addition of a carboxylic acid ester. The carboxylic acid ester can be incorporated into the tissue by addition of the ester to the furnish prior to the formation of the tissue, or it can be topically applied to the tissue web after formation, either while the tissue web is still wet or after the tissue web has been dried.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: March 16, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Wen Zyo Schroeder
  • Patent number: 5730839
    Abstract: The invention consists of soft, bulky tissue products that result from the presence of a debonder/softening agent in the outer layers of the tissue and creping under "closed" pocket conditions. The debonder/softening agents belong to a group of organic chemicals that include several imidazolinium quaternary compounds. These chemicals do not adversely interfere with adhesion, unlike most debonders, to the drying surface of the tissue machine. They can, therefore, be placed in the outer layers of the tissue that contact the dryer surface and improve creping. The tissue can then be creped off of the drying surface using a closed pocket, that is a pocket angle of less than 80 degrees. The closed pocket creping normally produces a thicker, less dense tissue but with coarse crepe. Closed pocket creping and the presence of most debonders in the dryer side layers would be expected to also produce coarse crepe structures.
    Type: Grant
    Filed: July 21, 1995
    Date of Patent: March 24, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Greg Arthur Wendt, Gary Vance Anderson, Kelly Steven Lehl, Stephen John McCullough, Wen Zyo Schroeder
  • Patent number: 5725736
    Abstract: The invention relates to tissue products having improved softness properties and methods of making them. Specifically, improved softness is achieved by incorporating a silicone betaine either into the furnish and/or topically applied to the tissue web. Optionally, one or more softeners/debonders are also incorporated into the fiber furnish at the wet end of the tissue machine prior to formation, and/or by an optional topical treatment after the tissue web is formed or dried. The result is a tissue product with added bulk and a smooth surface feel, both properties contributing to improved softness characteristics.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: March 10, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Wen Zyo Schroeder, Gary Lee Shanklin