ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,456, issued on March 25, was assigned to The Regents of the University of California (Oakland, Calif.).

"Systems and methods for dynamic control of radiation dose in radiation therapy" was invented by Ke Sheng (Los Angeles) and Qihui Lyu (Oakland, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method for delivering radiation therapy to a patient includes generating a radiation therapy plan and adjusting a shape of at least one of a plurality of multi-leaf collimators (MLCs) arranged in an arc about a patient bed to create a respective plurality of desired beam profiles for each of the plurality of MLCs to thereby implement the u...