Patents by Inventor Franz Herzig

Franz Herzig 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).

  • Finely divided, highly pure neutral zinc oxide powder, a process for its preparation and its use
    Patent number: 5527519
    Abstract: The invention relates to finely divided, highly pure neutral zinc oxide powder used for UV protection in cosmetic sun screen preparations and daytime skin care preparations as well as in lacquers and plastics, and to a process for its preparation.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: June 18, 1996
    Assignees: Bayer Aktiengesellschaft, Haarmann & Reimer GmbH
    Inventors: Michael Miksits, Christoph Tiburtius, Jurgen Kischkewitz, Kai Butje, Albrecht Warth, Franz Herzig, Roland Langner