ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,173, issued on April 14, was assigned to Innovative Building Technologies LLC (Seattle).
"Multi-story building having prefabricated stair and elevator modules" was invented by Arlan E. Collins (Seattle), Mark L. Woerman (Seattle), Mark D'Amato (Seattle), Eric P. Hinckley (Superior, Colo.), Calder Danz (Seattle), Christopher J. Allen (Aloha, Ore.) and Dale V. Paul (Poulsbo, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A building includes a prefabricated modular stair or elevator module. The prefabricated stair or elevator module may form either a fully functional stairwell with an internally supported internal landing and handrails, or a ful...