Patents by Inventor Andrea Kollwitz

Andrea Kollwitz 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).

  • Shaped tampon
    Patent number: 6932805
    Abstract: Shaped tampons having varying perimeters are provided. Tampons disclosed comprise a mass of absorbent material formed into a self-sustaining shape comprising an insertion end, a withdrawal end, and a center region. The center region has at least one perimeter which is less than a largest insertion end perimeter and is less than a withdrawal end perimeter. The shaped tampons may also have varying average fiber density regions. The shaped tampons may be wrapped in tightly conforming wrappers which optionally aid in maintaining the self-sustaining shape prior to use. Optionally, the shaped tampons may utilize tampon applicators which enable a user to visually see the shape of the tampon prior to use.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: August 23, 2005
    Assignee: The Procter & Gamble Company
    Inventors: Andrea Kollwitz, Nanda Christine Almond, Catherine Jean Randall, Charles John Berg, Jr., Wolfgang Werner Hans Domeier
  • Substantially serpentine shaped tampon
    Patent number: 6824536
    Abstract: Shaped tampons having varying volumes are provided. A tampon which is formed into a self-sustaining shape has an outer surface, which is substantially serpentine. The tampon also has continually changing volume. The shaped tampons may also have varying average fiber density regions. The shaped tampons may be wrapped in tightly conforming wrappers which optionally aid in maintaining the self-sustaining shape prior to use. Optionally, the shaped tampons may utilize tampon applicators which enable a user to visually see the shape of the tampon prior to use.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: November 30, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Catherine Jean Randall, Charles John Berg, Jr., Andrea Kollwitz, Angela Alexa Schäfer, Rachel Ann Lawton, Nanda Christine Almond, Wolfgang Werner Hans Domeier, Sybille Fuchs
  • Substantially serpentine shaped tampon
    Publication number: 20030176844
    Abstract: Shaped tampons having varying volumes are provided. A tampon which is formed into a self-sustaining shape has an outer surface, which is substantially serpentine. The tampon also has continually changing volume. The shaped tampons may also have varying average fiber density regions. The shaped tampons may be wrapped in tightly conforming wrappers which optionally aid in maintaining the self-sustaining shape prior to use. Optionally, the shaped tampons may utilize tampon applicators which enable a user to visually see the shape of the tampon prior to use.
    Type: Application
    Filed: May 16, 2002
    Publication date: September 18, 2003
    Applicant: The Procter & Gamble Company
    Inventors: Catherine Jean Randall, Charles John Berg, Andrea Kollwitz, Angela Alexa Schafer, Rachel Ann Lawton, Nanda Christine Almond, Wolfgang Werner Hans Domeier, Sybille Fuchs
  • Shaped tampon
    Publication number: 20030176845
    Abstract: Shaped tampons having varying perimeters are provided. Tampons disclosed comprise a mass of absorbent material formed into a self-sustaining shape comprising an insertion end, a withdrawal end, and a center region. The center region has at least one perimeter which is less than a largest insertion end perimeter and is less than a withdrawal end perimeter. The shaped tampons may also have varying average fiber density regions. The shaped tampons may be wrapped in tightly conforming wrappers which optionally aid in maintaining the self-sustaining shape prior to use. Optionally, the shaped tampons may utilize tampon applicators which enable a user to visually see the shape of the tampon prior to use.
    Type: Application
    Filed: May 16, 2002
    Publication date: September 18, 2003
    Applicant: The Procter & Gamble Company
    Inventors: Andrea Kollwitz, Nanda Christine Almond, Catherine Jean Randall, Charles John Berg, Wolfgang Werner Hans Domeier