Patents by Inventor Curt Muller

Curt 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).

  • Cationic polycondensates useful for improving the fastness of dyeings on textiles
    Patent number: 4764585
    Abstract: Cationic fixing agents based on the reaction products of(a) a monofunctional or polyfunctional amine having one or more primary and/or secondary and/or tertiary amino groups and(b) cyanamide, dicyandiamide, guanidine or bisguanidinegive improved results when the reaction takes place in the presence of a catalyst (K) selected from metals, metal salts and heterocyclic nitrogen-containing organic bases, particularly zinc chloride.
    Type: Grant
    Filed: September 15, 1987
    Date of Patent: August 16, 1988
    Assignee: Sandoz Ltd.
    Inventors: Jurg Heller, Bruno Kissling, Curt Muller, Tibor Robinson, Salvatore Valenti