Patents by Inventor Lothar Havenith

Lothar Havenith 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).

  • Dielectric impregnating fluid and its use
    Patent number: 4410869
    Abstract: Compositions containing ditolyl ethers have outstanding dielectric properties. They are particularly suitable for use as impregnating agents in condensers.
    Type: Grant
    Filed: March 25, 1982
    Date of Patent: October 18, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Alfons Klein, Karlfried Wedemeyer, Lothar Havenith, Rolf Kron
  • Impregnating agent and its use
    Patent number: 4294715
    Abstract: A dielectric composition comprising a mixture of monoisopropylated diphenyls and polyisopropylated diphenyls, especially a mixture of 30 to 60 parts by weight of monoisopropylated diphenyls and 70 to 40 parts by weight of polyisopropylated diphenyls, the polyisopropylated diphenyls preferably being made up in turn of 60 to 85 parts by weight of diisopropylated diphenyls, 10 to 35 parts by weight of triisopropylated diphenyls and 0.5 to 5 parts by weight of tetraisopropylated diphenyls, these latter amounts being based upon the total amount of the polyisopropylated diphenyls.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: October 13, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Alfons Klein, Rudolf Kron, Karlfried Wedemeyer, Ernst Knust, Lothar Havenith