So what comes to mind when you hear the phrase "innovative company"? Apple (Nasdaq: AAPL)? Garmin (Nasdaq: GRMN)? Google (Nasdaq: GOOG)? Sirius (Nasdaq: SIRI)? In this installment of "Fool Video," Motley Fool analysts Bill Barker, Tim Hanson, and Bill Mann take stock of some of their favorite innovators, including CarMax (NYSE: KMX), Cemex (NYSE: CX), and MannKind (Nasdaq: MNKD).