Patents by Inventor Shawn D. Keener

Shawn D. Keener 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: 6618949
    Abstract: A system and method for adjusting sighting pins in an archery sight for multiple target distances after the uppermost pin has been adjusted for a target distance such as 20 yards. An archery target is utilized with a horizontal reference indicator. Vertical offset distances from the reference indicator are determined for various target distances and arrow velocities, indicating where an arrow destined for the reference indicator on an imaginary target at a longer range such as 30 yards would strike the target at 20 yards. A vertical offset impact point is marked on the target at the offset distance from the reference indicator. A second pin corresponding to 30 yards is adjusted to visually overlie the reference indicator when the first pin is aimed at the offset impact point. By determining and marking offset distances corresponding to multiple target distances, multiple sighting pins can be adjusted in a similar manner.
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: September 16, 2003
    Inventor: Shawn D. Keener