ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,708, issued on Nov. 25.

"Lift system for contaminant mitigation" was invented by John A. Eisler (Ruskin, Fla.), Elwood A. Eisler (Cape Coral, Fla.) and Charles Barber (Minerva, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A contaminant mitigation system for a lift includes a set of vertical panels configured to be attached to a platform and guardrails of the lift to form a bottom enclosure and a set of vertical walls is arranged to slidingly correspond with the set of vertical panels. In this way, the set of vertical panels and the set of vertical walls cooperate to form a vertically-extendable enclosure. A controller is configured to extend ...