Patents by Inventor Jochem Kerres

Jochem Kerres 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).

  • Modified polymer and modified polymer membranes
    Patent number: 6509441
    Abstract: The present invention provides novel, economic processes for preparing nitrated and sulfonated polymers and aminated and sulfonated polymers. Also provided are the polymers prepared by these processes. The invention also provides for membranes comprising the polymers, methods for preparing the membranes and their use in electromembrane processes, particularly in fuel cells.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: January 21, 2003
    Assignee: Universitat Stuttgart
    Inventor: Jochem Kerres