Patents by Inventor Herbert Burkhardt

Herbert Burkhardt 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 producing chrome leather
    Patent number: 5340365
    Abstract: In the production of chrome leather, a pretreatment of delimed and bated pelts with condensation products not having a tanning action leads to substrates which, without any problems, can be mechanically dewatered and shaved or split and shaved.The properties of the leathers produced therefrom by chrome tanning do not differ from those of leathers which have been conventionally chrome-tanned and shaved.
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: August 23, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernhard Wehling, Franz Schade, Joachim Kochta, Herbert Burkhardt, Peter Schindlmayr