Patents by Inventor Hans-Klaus Muller

Hans-Klaus Muller 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).

  • Radical anion salts of derivatives of 1,4,5,8-naphthalenetetracarboxylic acid and their use
    Patent number: 4841073
    Abstract: The invention relates to crystalline, stable radical anion salts of derivatives of 1,4,5,8-naphthalenetetracarboxylic acid of the formula ##STR1## in which p1 k, n, s, x, m, p, B, R and c have the meaning given in the description,to processes for their preparation and to their use as electrically conductive compounds.
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: June 20, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Tillmann Hassel, Jurgen Hocker, Gerhard Heywang, Hans-Klaus Muller, Hans G. Fitzky