Patents by Inventor Winfried Kochersperger

Winfried Kochersperger 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).

  • Curing agent mixture for curing alkaline phenol/formaldehyde resins
    Patent number: 5071940
    Abstract: A curing agent mixture for curing alkaline phenol/formaldehyde resins containsA) a pulverulent or fibrous filler andB) a carbonic ester.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: December 10, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Dormeyer, Winfried Kochersperger, Franz Wolf, Eberhard Pfuetze