ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,426,592, issued on Sept. 30, was assigned to ARDISAM INC. (Cumberland, Wis.).

"Portable ladder and stand systems" was invented by Bryant Haakenson (Amery, Wis.), Michael Furseth (Cumberland, Wis.), Jeremy Horst (Cumberland, Wis.), Lincoln Cullen (Menomonie, Wis.), Alexandra Huf (Houlton, Wis.) and Cynthia Nesgoda (Rice Lake, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A portable ladder and stand system includes a platform assembly, a plurality of nestable ladder portions, a pack portion, and a carrying assembly. A central compartment of the pack portion may be positioned in the nested ladder portions to carry the ladder portions. The pack porti...