Patents by Inventor Johan Brogger

Johan Brogger 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).

  • Briccialdi B flat thumb key mechanism for a woodwind instrument
    Patent number: 5524520
    Abstract: A Briccialdi B flat thumb key mechanism for a woodwind instrument having a B key including a cup part and a lever part and movable around an axle, and a lever rockingly movable around the same axle for transferring a rocking motion to the B key for closing same and to a B flat key also for closing same, with the axle defining an angle of 20.degree.-75.degree. relative to a longitudinal axis of the instrument.
    Type: Grant
    Filed: May 12, 1994
    Date of Patent: June 11, 1996
    Inventor: Johan Brogger
  • Coupling rod for a flute operating system
    Patent number: D576200
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: September 2, 2008
    Inventor: Johan Brogger