Patents by Inventor Leopold Cop

Leopold Cop 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 a non-polar polymeric material dyeable with an acid dye
    Patent number: 4744860
    Abstract: Process for treating at least one surface of a non-polar polymeric material to improve the receptivity of that surface to coloration with an acid dye, which comprises treating said surface of the material with a low temperature microwave plasma from a chemical compound which is capable of creating receptor sites for acid dye on said surface.
    Type: Grant
    Filed: April 14, 1987
    Date of Patent: May 17, 1988
    Assignee: Shell Oil Company
    Inventors: Leopold Cop, Jan Jordaan, Henry P. Schreiber, Michael R. Wertheimer