ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,602, issued on June 10.
"Truck ramp" was invented by Chad Windsor (Tiffin, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "A ramp system for transporting a vehicle between a trailer and a truck includes a first ramp having a first end extending into the trailer and a second end configured to be detachably secured to a horizontal rail of the trailer, a second ramp that can be pivotally secured to the first ramp, and a hinge assembly including a first ramp knuckle disposed on the first ramp, a second ramp knuckle disposed on the second ramp, and a hinge pin configured to be disposed through a first ramp bore and a second ramp bore to pivotally sec...