Patents by Inventor Sigrid Lang

Sigrid Lang 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).

  • Fine-grained coated laminate in continuous web form
    Patent number: 4892777
    Abstract: A coated laminate in web form, having a fine-grained surface, consists of a nonwoven fabric with a coating, with a plain knit or woven fabric situated between the coating and the nonwoven fabric. Its production is performed by a reverse procedure on a release paper.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: January 9, 1990
    Assignee: Firma Carl Freudenberg
    Inventors: Hanns J. Wald, Wilfried Getrost, Sigrid Lang