Patents by Inventor Knut H. Chmil

Knut H. Chmil 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).

  • Method of preparing a thiophene-containing or furan-containing conjugated compound and precursor compound used therein
    Patent number: 6124475
    Abstract: The invention relates to a method of preparing thiophene-containing or furan-containing conjugated compounds such as polythiophene. The method uses a precursor compound having tetrahydrothiophene or tetrahydrofuran precursor units having arylthio or alkylthio substituents. The precursor units can be thermally converted into thiophene or furan units. Due to the presence of the precursor units the precursor compound is soluble and can, unlike the corresponding conjugated compound, be processed from solution.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: September 26, 2000
    Assignee: U.S. Philips Corporation
    Inventors: Knut H. Chmil, Adam R. Brown, Dagobert M. De Leeuw, Edsko E. Havinga, Anita Pomp, Wolter Ten Hoeve, Hans Wijnberg