US20150285178A1, John, Bobby, "Reactivity controlled compression ignition engine and method of combustion phasing control", issued 2015-10-08
US9151241B2, Gehrke, Christopher R. & Fiveland, Scott B., "Reactivity controlled compression ignition engine operating on a Miller cycle with low pressure loop exhaust gas recirculation system and method", issued 2015-10-06