ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,311, issued on March 24, was assigned to Gordon Sales Inc. (Bossier City, La.).

"Suspended ceiling grid hanging system" was invented by Imack Laydera-Collins (Benton, La.), Steven Mark Ladatto (Bossier City, La.), Steven Jeremy Shugarts (Bossier City, La.), Daniel E. Smiley (Benton, La.) and Robert Ronald Rombough (Cibolo, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is a modular suspended ceiling grid system that uses joining hubs to connect tee frame members into a load-bearing framework. The tee frame members have coupling structures on each end that attach to the joining hubs. The joining hubs also have central holes th...