Patents by Inventor Klaus-Wilhelm Liener

Klaus-Wilhelm Liener 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).

  • Wire enamels containing polyesterimides and/or polyamideimides with polyoxyalkylenediamines as molecular elements
    Patent number: 6316046
    Abstract: The invention relates to wire enamels comprising as binders polyesterimide and/or polyamideimide, the binders comprising as monomeric building blocks polyoxyalkylenediamine having terminal amino groups. The polyoxyalkylenediamines are preferably selected from the group polyoxyethylenediamine, polyoxypropylenediamine and polyoxyethylenepropylenediamine. The invention also encompasses the use of the novel wire enamels for coating copper wires, especially thick round wires or profiled wires.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: November 13, 2001
    Assignee: Schenectady International
    Inventors: Klaus-Wilhelm Liener, Gerold Schmidt, Helmut Lehmann