Patents by Inventor Winfried Merz

Winfried Merz 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 the production of a film combination
    Patent number: 4995930
    Abstract: A process for the production of a film combination consisting of a perforated plastic film and a fibrous material, which are laminated together by means of the pneumatic vacuum used to perforate the film when it is in a thermoplastic condition.
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: February 26, 1991
    Assignee: Lever Brothers Company
    Inventors: Winfried Merz, Theo Schmidt