ALEXANDRIA, Va., March 24 -- United States Patent no. 12,582,844, issued on March 24, was assigned to VARIAN MEDICAL SYSTEMS INC. (Palo Alto, Calif.).

"Radiation therapy system with follow-the-lights user interface" was invented by Susan Koehl (Henderson, Nev.) and Ross Hannibal (Saratoga, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Example methods and apparatuses of controlling a user interface with a plurality of input mechanisms are disclosed. One example method includes causing a first set of input mechanisms in the plurality of input mechanisms to be visually emphasized via a first visual technique while a second set of input mechanisms in the plurality of input mechanisms is not visually emph...