Patents by Inventor Karl Michael Schumann

Karl Michael Schumann 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).

  • Liquid transport member for high flux rates between two port regions
    Patent number: 6811842
    Abstract: The present invention is a Liquid transport member with significantly improved liquid handling capability, which has at least one bulk region and a wall region that completely circumscribes said bulk region, and which comprises a port region, whereby the bulk region has an average fluid permeability kb which is higher than the average fluid permeability kp of the port regions.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: November 2, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Bruno Johannes Ehrnsperger, Mattias Schmidt, Karl Michael Schumann, Fred Naval Desai, Gary Dean Lavon, Gerald Alfred Young, Donald Carroll Roe
  • High flux liquid transport members comprising two different permeability regions
    Patent number: 6673057
    Abstract: The present invention is a liquid transport member with significantly improved liquid handling capability, which has at least one bulk or inner region with a high average permeability, completely circumscribed by a wall region. The wall region further comprises at least one port region with a lower permeability than the inner region, and with a ratio of its permeability to its thickness of at least 10−7 m.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: January 6, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Bruno Johannes Ehrnsperger, Mattias Schmidt, Karl Michael Schumann, Fred Naval Desai, Gary Dean Lavon, Gerald Alfred Young, Donald Carroll Roe
  • Liquid transport member for high flux rates between a port region and an opening
    Patent number: 6579457
    Abstract: The present invention is a liquid transport member with significantly improved liquid handling capability, which has at least one bulk region and a wall region that completely circumscribes said bulk region, and which comprises a membrane port region and an open port region, whereby the bulk region has an average fluid permeability kb which is higher than the average fluid permeability kp of the membrane port region.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: June 17, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Bruno Johannes Ehrnsperger, Mattias Schmidt, Karl Michael Schumann, Fred Naval Desai, Gary Dean Lavon, Gerald Alfred Young, Donald Carroll Roe
  • Disposable absorbent articles with controlled skin hydration effect
    Publication number: 20020087135
    Abstract: A disposable absorbent article covering certain parts of the body of the wearer and comprising a loading area, a storage area as well as chassis area, whereby the absorbent article has a specific Skin Hydration Value, calculated from the individual Skin Hydration values of the respective areas.
    Type: Application
    Filed: January 17, 2002
    Publication date: July 4, 2002
    Applicant: The Procter & Gamble Company
    Inventors: Mathais Kurt Herrlein, John Peter Lankhof, Muir Charles Robertson, Jose Dominguez-Staedke, Ivan Jean Olliver, Karl Michael Schumann
  • Disposable absorbent articles with controlled skin hydration effect
    Patent number: 6388166
    Abstract: This invention is a disposable absorbent article (20) covering certain parts of the body of the wearer and comprising a loading area, a storage area, as well as a chassis area, whereby the absorbent article has a specific skin hydration value, calculated from the individual skin hydration values of the respective areas.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: May 14, 2002
    Inventors: Mathais Kurt Herrlein, John Peter Lankhof, Muir Charles Robertson, Jose Dominguez-Staedke, Ivan Jean Olliver, Karl Michael Schumann
  • DISPOSABLE ABSORBENT ARTICLES WITH CONTROLLED SKIN HYDRATION EFFECT
    Publication number: 20020032423
    Abstract: This invention is a disposable absorbent article (20) covering certain parts of the body of the wearer and comprising a loading area, a storage area, as well as a chassis area, whereby the absorbent article has a specific skin hydration value, calculated from the individual skin hydration values of the respective areas.
    Type: Application
    Filed: September 29, 1998
    Publication date: March 14, 2002
    Inventors: MATHAIS KURT HERRLEIN, JOHN PETER LANKHOF, MUIR CHARLES ROBERTSON, JOSE DOMINGUEZ-STAEDKE, IVAN JEAN OLLIVER, KARL MICHAEL SCHUMANN