Patents by Inventor Lawrence J. Exner

Lawrence J. Exner 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).

  • Asymmetric skein dyeing
    Patent number: 4112714
    Abstract: Chevroning of fabrics made from skein dyed yarns is avoided or controlled by dyeing the yarns such that the color repeat length is greater than the circumference of the skein. In practice this is achieved by horizontally dyeing only a portion of the width of a skein as the skein is held vertically.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: September 12, 1978
    Assignee: Rohm and Haas Company
    Inventors: Isadore Rosenthal, Lawrence J. Exner, Gregory J. Niksa, Warren I. Weiss, Maurice G. Young
  • Asymmetric skein dyeing
    Patent number: 4052155
    Abstract: Chevroning of fabrics made from skein dyed yarns is avoided or controlled by dyeing the yarns such that the color repeat length is greater than the circumference of the skein. In practice this is achieved by horizontally dyeing only a portion of the width of a skein as the skein is held vertically.
    Type: Grant
    Filed: December 17, 1975
    Date of Patent: October 4, 1977
    Assignee: Rohm and Haas Company
    Inventors: Isadore Rosenthal, Lawrence J. Exner, Gregory J. Niksa, Warren I. Weiss, Maurice G. Young