ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,975, issued on March 31, was assigned to KONE Corp. (Helsinki).

"Method and an arrangement for aligning elevator guide rails" was invented by Harri Makinen (Helsinki), Mikael Haag (Helsinki), Joonas Jokela (Helsinki) and Markku Haivala (Helsinki).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and arrangement for aligning elevator guide rails includes a measuring step and a separate aligning step. The alignment of guide rails supported with adjustable fastening members in the shaft is measured in several measurement points along the height of the guide rail line based on at least one reference line provided in the vicinity of the guide rails...