ALEXANDRIA, Va., June 9 -- United States Patent no. 12,649,405, issued on June 9, was assigned to Titan Trailers Inc. (Delhi, Canada).
"Cylindrical semi-trailer" was invented by Michael Kloepfer (Delhi, Canada), James Bult (Monee, Ill.) and Andrew Joseph Maertens (Delhi, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cylindrical cargo container is formed of longitudinal, extruded arcuate panels joined pairwise at abutting edges to form a cylindrical tube. The container is mountable on a separate wheeled chassis to form a semi-trailer or railcar, or a chassis integral with a truck. The container may be substantially smooth on inner and outer surfaces, to provide optimal aerodynamics and freedom of mo...