Patents by Inventor Harald Faika

Harald Faika 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).

  • Process for imparting wet strength to paper
    Patent number: 6143132
    Abstract: The novel AOX-free process for imparting wet strength to paper with water-dispersible polyisocyanates is distinguished by a good wet-strength effect, even under mild drying conditions, and does not affect the activity of optical brighteners used at the same time.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: November 7, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Harro Traubel, Hans-Josef Laas, Helmut Reiff, Joachim Konig, Jurgen Reiners, Harald Faika