ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,393, issued on June 17, was assigned to ProtonVDA LLC (Naperville, Ill.) and Board Of Trustees Of NIU (Naperville, Ill.).

"Method to register an optical tracking system with a particle detector system" was invented by Don F. DeJongh (Naperville, Ill.), Ethan A. DeJongh (Naperville, Ill.), Victor Rykalin (Naperville, Ill.), Nicholas Karonis (DeKalb, Ill.), Kirk Duffin (DeKalb, Ill.), Caesar Ordonez (DeKalb, Ill.) and John Winans (DeKalb, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A novel method and a related system are configured to place measured trajectories into a voxel space, which moves with respect to a particle detector system. The tr...