I have mentioned this a few times here already, but I will mention it again, even if I risk looking like a spammer, as it seems this point hans't been made strongly enough in this thread: This discovery is not new.

A different company published almost an identical product more than 3 years ago (see https://web.archive.org/web/20190119032121/http://br.craftwo... as well as my top-level comment).

So I am absolutely against patenting something that is 1) not new 2) that has a very simple implementation and could thus easily be disseminated widely if patents weren't "protecting" it. Reminds me strongly of the various patent wars regarding scrolling on the smartphone and other simple user interface gestures; in the end everyone looses out.