Patents by Inventor Karin Hakanson

Karin Hakanson 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).

  • Method of skewing twill fabric to avoid leg twist
    Patent number: 4015318
    Abstract: Leg twist in jeans made of twill fabrics may be avoided by skewing the fabric clockwise or counterclockwise depending on the twill direction before making the garment so that when the garment is laundered the positions of the warp and filling yarns will remain unchanged with respect to each other. For denim an 8% skew based on fabric width introduced in manufacturing the denim gives straight seams throughout the life of the garment.
    Type: Grant
    Filed: March 4, 1976
    Date of Patent: April 5, 1977
    Assignee: Levi Strauss & Co.
    Inventor: Karin Hakanson
  • Method of skewing twill fabric to avoid leg twist
    Patent number: 3959826
    Abstract: Leg twist in jeans made of twill fabrics may be avoided by skewing the fabric clockwise or counterclockwise depending on the twill direction before making the garment so that when the garment is laundered the positions of the warp and filling yarns will remain unchanged with respect to each other. For denim an 8% skew based on fabric width introduced in manufacturing the denim gives straight seams throughout the life of the garment.
    Type: Grant
    Filed: May 15, 1974
    Date of Patent: June 1, 1976
    Assignee: Levi Strauss & Co.
    Inventor: Karin Hakanson