ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,428, issued on March 18, was assigned to Process Ltd. (Coventry, Great Britain).

"System and method for recovering ammonia from an ammonia-containing liquid" was invented by Robert Eden (Coventry, Great Britain) and Mark Moulden (Coventry, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system for recovering ammonia from an ammonia-containing liquid, which system comprises a waste tank (10) for receiving ammonia-containing liquid entering the system; a filtration unit (14) comprising an ultrafiltration unit for receiving the ammonia-containing liquid from the waste tank (10) and filtering the ammonia-containing liquid to remove solid...