Patents by Inventor Wilfried Beckervordersandforth

Wilfried Beckervordersandforth 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).

  • Acoustic element and method for producing an acoustic element
    Patent number: 8720642
    Abstract: An acoustic element has at least two board-shaped elements (1, 2). A dampening element (3), preferably a nonwoven element, is arranged between the two board-shaped elements (1, 2). The board-shaped elements (1, 2) exhibit bore holes (1c, 1d, 2c, 2d). The bore holes each exhibit a diameter of not more than 3 mm.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: May 13, 2014
    Inventor: Wilfried Beckervordersandforth