ALEXANDRIA, Va., June 16 -- United States Patent no. 12,654,083, issued on June 16.

"Sensor backstop system" was invented by Johnathon P. Brasseur (Barrington, N.H.) and Heather E. Brasseur (Barrington, N.H.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A training device for baseball and other sports includes layers for detecting different zones of contact. The device can detect position of impact and the velocity of impact of an object such as a baseball, lacrosse ball or hockey puck by a change in voltage due to the compression or pressuring of an interlayer positioned between two conductors. The device is used for individual training as well as for competition over a network."

The patent was filed on Oc...