>You can't do that IIRC, because it is based on prior art in the public domain. Just like you can't patent a chair with 5 legs.
A point she made in the video (and at least partially confirmed by a quick patent search by me) is that there really isn't one of these in the prior art.
> There's also no reason to patent that many things for the same thing. You only need to be sufficiently vague to how it folds.
As far as patents are concerned, those are the same. Getting a patent broad enough to cover all her embodiments of the invention is the same as getting a patent that covers all the prototypes. In the US you get up to three "free" independent claims per patent application, that can cover different approaches that are non-overlapping. But they can't be addressed to different inventions. In other words, you can get a single patent on three reasonable variations of a folding coat hanger and slight variations thereof. You cannot get a single patent that covers a folding coat hanger, and precision timing device, and a popcorn maker.
