Patents by Inventor Timo Kokkonen

Timo Kokkonen 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 for preparing a conductive polymer
    Patent number: 5279769
    Abstract: The invention relates to a method for preparing a conductive polymer product by doping a conductor polymer. The conductor polymer or a mixture of the conductor polymer and a matrix polymer is in a molten state brought into contact with a doping agent, whereafter the mixture is treated into a product.
    Type: Grant
    Filed: December 2, 1991
    Date of Patent: January 18, 1994
    Assignee: Neste Oy
    Inventors: Timo Kokkonen, Toivo Karna, Jukka Laakso, Per Nyholm, Jan-Erik sterholm, Henrik Stubb