Patents by Inventor Michael P. Webster

Michael P. Webster 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).

  • Acoustical control media
    Patent number: 4441580
    Abstract: An acoustical control media includes an air impervious septum adjacent which there is positioned a relatively thick layer of low density filler material on the outside of which there is provided a relatively thin panel of medium density perforated material. The acoustical media so formed can be used in acoustical panels employed to separate work areas in an office and in such applications decorative coverings can be provided over the perforated layer. The structure so formed provides improved broad bandwidth absorption of acoustical energy.
    Type: Grant
    Filed: October 17, 1980
    Date of Patent: April 10, 1984
    Assignee: Steelcase Inc.
    Inventor: Michael P. Webster