Dyson's Vacuum Cleaner

Dyson, along with elon musk, is among the most famous living inventors. He's worked on wheel rows and hand dryers - but his best-selling invention was a vacuum gleaner. Dyson says he built five thousand, 127 prototypes over five years. The dyson company has annual revenues of more than three billion dollars. And dyson himself has a net worth of more than five billion dollars.