US Patent Issued to YARA INTERNATIONAL ASA on July 28 for "Absorption column comprising a feed box having a serrated weir and a structured packing and process for the production of nitric acid" (Norwegian Inventor)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,156, issued on July 28, was assigned to YARA INTERNATIONAL ASA (Oslo, Norway).

"Absorption column comprising a feed box having a serrated weir and a structured packing and process for the production of nitric acid" was invented by Halvor Oien (Porsgrunn, Norway).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vertical absorption column comprising a liquid distributor comprising a feed box having a serrated weir for distribution of a liquid through upward-pointing serrations of the serrated weir into perforated trays of the liquid distributor and located directly above a structured packing, a structured packing, a plate packing comprising a plurality...