Patents by Inventor Johannes Evert Aloisius Koppen

Johannes Evert Aloisius Koppen 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).

  • Anti-static composition
    Patent number: 6031039
    Abstract: An anti-static composition comprising (a) 65-99% by weight of a polyoxymethylene polymer; (b) 1-10% by weight of carbon fiber and, optionally, (c) 0-20% by weight of additive compounds. The invention further relates to a process for preparing such a composition and to molded articles comprising such a composition.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: February 29, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Johannes Evert Aloisius Koppen