Patents by Inventor Eric D. Holland

Eric D. Holland 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).

  • Publication number: 20100212474
    Abstract: A musical system. At least some of the illustrative embodiments are systems including: a frame with an interior cavity, a tuning system coupled within the interior cavity of the frame, the tuning system configured to be accessed by way of an aperture through of the frame, and a drum head retained at a first end of the frame, wherein the tuning system configured to apply uniform pressure that circumscribes an axis of interior surface of the drum head.
    Type: Application
    Filed: February 24, 2010
    Publication date: August 26, 2010
    Applicant: SWAN PERCUSSION, LLC
    Inventors: Michael A. Wiese, Eric D. Holland, Edwin R. Barbee
  • Patent number: D803595
    Type: Grant
    Filed: October 22, 2016
    Date of Patent: November 28, 2017
    Inventor: Eric D. Holland
  • Patent number: D815976
    Type: Grant
    Filed: October 22, 2016
    Date of Patent: April 24, 2018
    Inventor: Eric D. Holland