ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,115, issued on Sept. 23, was assigned to ABL IP Holding LLC (Atlanta).
"Lighting device with battery backup" was invented by Michael Hanley (Lawrenceville, Ga.) and Bradley Dobbs (Villa Rica, Ga.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lighting device controller includes a power supply, a switch, a battery, and a status indicator. The switch can be set to either an AC only or battery backup position, indicating whether the lighting device controller provides a battery backup signal to the lighted sign. When set to the battery backup position, the lighting device controller powers the lighted sign and charges the battery. If AC power is los...