Patents by Inventor Friedrich Vohwinkel

Friedrich Vohwinkel 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).

  • Resin system
    Patent number: 6468659
    Abstract: The resin system comprises at least two components which can be stored separately and crosslinked with one another at room temperature, preferably without curing accelerators. The first component comprises at least one compound of the formula (I) where A is an unsubstituted or substituted aromatic radical. The second component comprises at least one cyclic anhydride of an organic acid.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: October 22, 2002
    Assignee: ABB Schweiz AG
    Inventors: Friedrich Vohwinkel, Stefan Foerster, Jens Rocks