Patents by Inventor Michael J Brandenstein

Michael J Brandenstein 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).

  • Patent number: 9940912
    Abstract: The invention relates to a sound hole covering that prevents foreign items from entering into the body of an instrument, while minimizing the effects the covering may cause to the sound quality of the instrument. One such device for preventing a plectrum from entering into a body of an instrument may include, but is not limited to, a sound hole covering having a grid-like structure and a base clip, where one end of the base clip enters into the sound hole and pushes against a back surface of the soundboard while the covering is pressed against a top surface of the soundboard the other end of the base clip to enters into the sound hole in a similar fashion.
    Type: Grant
    Filed: December 4, 2016
    Date of Patent: April 10, 2018
    Inventor: Michael J Brandenstein