Patents by Inventor Ulrich Hintz

Ulrich Hintz 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).

  • Sound-absorbing panel
    Patent number: 4143495
    Abstract: A sound-absorbing panel having a front and a rear sheet, the front sheet being corrugated and perforated; a filler of particles of elastic material lies between the sheets.
    Type: Grant
    Filed: September 26, 1977
    Date of Patent: March 13, 1979
    Assignee: Fa. Pass & Co.
    Inventor: Ulrich Hintz