You know, I never realized until I read your comment that "drone" seems to specifically refer to a UAV, and "robot" to a terrestrial type.

Which is strange to me, since when I hear "drone" the first animal that comes to mind is an ant. I thought it'd just be a catch-all term for any kind of bot.

I didn't mean a flying thing and I know multiple companies exists. Good ideas doesn't need to sound novel at their core.

I can't recall now where, but heard the word drone used for robots. Maybe the boundary is getting blurrier?