US Patent Issued to GM Global Technology Operations on Nov. 3 for "Lightweight magnesium-based composite brake rotor" (Michigan Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,819, issued on Nov. 3, was assigned to GM Global Technology Operations LLC (Detroit).

"Lightweight magnesium-based composite brake rotor" was invented by Ratandeep S. Kukreja (Auburn Hills, Mich.), Zhongyi Liu (Troy, Mich.) and Heewook Lee (Oakland Township, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A brake rotor for a motor vehicle having a composite structure may include an annular body defining opposite friction surfaces of the brake rotor. The annular body may include a core made of a lightweight, magnesium-based alloy; a thermal barrier layer made of a thermally insulating material disposed on the core; and a wear-resistant layer made...