Patents by Inventor Matthew Engstrom

Matthew Engstrom 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).

  • Pair of earphones
    Patent number: D532770
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: November 28, 2006
    Assignee: Shure Acquisiton Holdings, Inc.
    Inventors: Matthew Engstrom, Scott Belliveau, Anne Moser, Daniel Perez
  • Control assembly for audio device
    Patent number: D579918
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: November 4, 2008
    Assignee: Shure Acquisition Holdings, Inc.
    Inventors: Matthew Engstrom, Scott Belliveau, Daniel Perez, Ki Bok Song, Tianzhu Wang