ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,811, issued on June 17.

"Gear arrangement" was invented by Estebane Geoffrey Joseph Champ-Locatelli Ep. Saltapes (La Balme, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gearbox comprising an internal-external gear pair having a small tooth-difference, the internal-external gear pair comprising: an internal gear arranged about an internal gear axis and having a first number of internal gear teeth; and an external gear having an external gear axis arranged to orbit the internal gear axis and having a second number of external gear teeth, the external gear being arranged to engage with the internal gear teeth; wherein the small tooth-differe...