Patents by Inventor Mark L. Beer

Mark L. Beer 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).

  • Adjustable reed sounder
    Patent number: 5030159
    Abstract: A monster call is provided and consists of an elongated reed centrally positioned in a passageway between a pair of side walls and extending between a pair of end walls of a rectangular shaped body. A person can place their lips over the passageway and blow air therethrough to cause the reed to vibrate, thereby generating a simulated sound of a monster.
    Type: Grant
    Filed: December 14, 1989
    Date of Patent: July 9, 1991
    Inventor: Mark L. Beer