ALEXANDRIA, Va., July 9 -- United States Patent no. 12,351,267, issued on July 8, was assigned to JackRabbit Mobility Inc. (La Jolla, Calif.).
"Bicycle stem" was invented by Thomas M. Piszkin (Santee, Calif.), D'Arcy O'Connor (Victoria, Canada), Jason B. Kenagy (La Jolla, Calif.) and Jan K. Lezny (La Jolla, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A stem includes a quill with a quill length extending along an axis. A first quill end has a cradle configured to couple to a handlebar, and a second quill end has helical slots opposite one another. A base has a base length extending along the axis. The base is configured to receive the quill. A first base end has a bracket configured to couple to a s...