Patents by Inventor Wolfram V. Langenthal

Wolfram V. Langenthal 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).

  • Heat-sensitive polyurethane dispersions
    Patent number: 4888379
    Abstract: This invention relates to heat-sensitive polyurethane dispersions and their use in the preparation of hollow articles by the dipping-process, for coating webs and the production of elastomeric filaments.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: December 19, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Henning, Wolfram V. Langenthal, Hermann Perrey, Hellmut Striegler