US Patent Issued to UT-Battelle on June 23 for "Photoswitchable guanidinium compounds for removal of oxyanions from liquid solutions" (Tennessee, Ohio Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,403, issued on June 23, was assigned to UT-Battelle LLC (Oak Ridge, Tenn.).

"Photoswitchable guanidinium compounds for removal of oxyanions from liquid solutions" was invented by Radu Custelcean (Beavercreek, Ohio), Bruce A. Moyer (Oak Ridge, Tenn.) and Jeffrey Einkauf (Knoxville, Tenn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compound having the following structure:wherein: R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 are independently selected from (i) hydrogen atom, (ii) hydrocarbon groups (R) containing 1-30 carbon atoms and optionally substituted with one or more fluorine atoms, (iii) -OR' groups, (iv) -NR'2 groups, (v) -C(O)R' groups, a...