Dyson DC40 is a Lightweight Dyson Ball with Patented Dyson Cyclone Technology Dyson engineers are constantly testing and inventing, trying to find new ways to make their technology better. As they work, they file patent applications to protect their inventions from copycat manufacturers. That’s why the only place you’ll find Dyson technology is inside a Dyson machine. in Public bookmarkswith dyson_dc40dyson_dc40_origindyson_dc40_vacuum_cleaner Note: Dyson engineers are constantly testing and inventing, trying to find new ways to make their technology better. As they work, they file patent applications to protect their inventions from copycat manufacturers. That’s why the only place you’ll find Dyson technology is inside a Dyson machine.