Patents by Inventor Fred Bernd Oppermann

Fred Bernd Oppermann 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).

  • Polyasparaginic acid homopolymers an copolymers, biotechnical production and use thereof
    Patent number: 6180752
    Abstract: The invention relates to the production of polyaspartic acid homo- and copolymers by biotechnological processes and to the use of the resulting products (for influencing the crystallization or agglomeration behavior of sparingly soluble salts or solids in aqueous systems).
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: January 30, 2001
    Assignee: Bayer AG
    Inventors: Winfried Joentgen, Torsten Groth, Alexander Steinb{umlaut over (u)}chel, Tran Hai, Fred Bernd Oppermann