US Patent Issued to Sachem on June 17 for "Strong binding metal-chelating resins using macrocycle molecules" (Texas, Indiana Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,155, issued on June 17, was assigned to Sachem Inc. (Austin, Texas).

"Strong binding metal-chelating resins using macrocycle molecules" was invented by Barry L. Haymore (Avon, Ind.), Sara S. Moghaddam (Dripping Springs, Texas), Charles B. Little (Austin, Texas) and Ari K. Kar (Bee Cave, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A metal-chelating resin includes (a) a compound represented by Formula (I):or a stereoisomeric form thereof or a salt thereof, wherein R1, R2, R3, R4, Ra, Rb, Rc and Rd are as defined herein; and (b) an organic polymer resin having at least one complementary reactive functional group covalently linked with at least...