Patents by Inventor Hans-Joachim Rehberg

Hans-Joachim Rehberg 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).

  • Dental compositions and appliances containing anti-carious ion exchange resins
    Patent number: 3978206
    Abstract: Tooth pastes, tooth filling and repair materials, tooth lacquers, dental prostheses and other products and appliances coming into contact with live teeth and tooth surfaces are rendered anti-carious by incorporating therein ion exchange resins containing fluorine, phosphate or calcium ions.
    Type: Grant
    Filed: August 9, 1971
    Date of Patent: August 31, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gunther Naumann, Gustav Pieper, Hans-Joachim Rehberg