Patents by Inventor Hans R. Wiehe

Hans R. Wiehe 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).

  • Elastic flat-surfaced woven fabric and its manufacture
    Patent number: 4563384
    Abstract: An elastic flat-surfaced fabric with improved recovery properties, in particular after washing, may be obtained from spinning fibre yarns containing elasthan filament yarn if 30 to 70% by weight of the spinning fibres in the spinning fibre yarns containing elasthan filament yarn are synthetic fibres.
    Type: Grant
    Filed: May 3, 1984
    Date of Patent: January 7, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans R. Wiehe, Herbert Hueber
  • Elastic covered yarn
    Patent number: 4470250
    Abstract: An elastic covered yarn the core of which is a wrapped yarn consisting of elasthan filament yarn having polyamide, polyester or viscose filament yarn as the sheath material, and which may be covered with different materials. This yarn has advantages in its properties and in processing compared to those covered yarns, the core of which is a bare elasthan filament yarn.
    Type: Grant
    Filed: July 2, 1982
    Date of Patent: September 11, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerd Arenz, Hans R. Wiehe