Patents by Inventor Willibald Giesen

Willibald Giesen 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).

  • Method of making a sanitary basin
    Patent number: 5624517
    Abstract: A foamed plastic basin body for a sanitary basin is provided with a die in which a shell of thermoplastic foil, previously heated to a bonding temperature above the deep-drawing temperature is bonded by a deep-drawing die which serves to shape the shell.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: April 29, 1997
    Assignee: Roth Werke GmbH
    Inventors: Willibald Giesen, Michael Schroder, Franz Kind