Patents by Inventor Merkle Holger

Merkle Holger 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).

  • Process for making antistatic or electrically conductive polymer compositions
    Patent number: 5476612
    Abstract: Polymeric compositions rendered antistatic or electrically conductive showing increased conductivity are obtained by incorporating into a matrix polymer a combination ofA. a first finely divided conductive material, namely conductive carbon black with a BET surface area of more than 80 m.sup.2 /g or an intrinsically conductive organic polymer in complexed form, andB. a second finely divided conductive material, namely graphite or an intrinsically conductive polymer in complexed form, which is different from the material used as material A, or a metal powder and/orC. a finely divided non conductive material having an average particle size below 50 microns.
    Type: Grant
    Filed: November 9, 1992
    Date of Patent: December 19, 1995
    Assignee: Zipperling Kessler & Co., (GmbH & Co.).
    Inventors: Bernhard Wessling, Merkle Holger, Susanne Blattner