Patents by Inventor David Gryspeerd

David Gryspeerd 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).

  • Arrow accessories, arrows having such accessories and methods of their manufacturing and operations
    Patent number: 8668606
    Abstract: An accessory for use with an arrow having an arrowhead and an arrow shaft. The arrowhead having a shank extending therefrom. The shaft having an open end operative to receive the shank. The accessory including a plate having a hole therethrough. The hole sized such that the shank is able to pass therethrough. The accessory further including a skirt depending from the plate. The accessory also including a plurality of fins downwardly depending from the skirt. The fins having forward-facing serrated edges.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: March 11, 2014
    Inventor: David Gryspeerd
  • Technologies for archery
    Patent number: 8663041
    Abstract: A device for use in archery. The device includes a cap defined via a plate and a skirt depending from the plate. The plate has a hole therethrough. The hole is sized such that a coupling shank is able to pass therethrough. The device further includes a spine depending from the skirt. The device also includes a fin extending from the spine.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: March 4, 2014
    Inventor: David Gryspeerd
  • Arrow accessory
    Patent number: D704787
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: May 13, 2014
    Inventor: David Gryspeerd