Vivos Inc (RDGL)

[Musical Shares]

Almost all patents are based off of prior art. It's why in a patent document you see the section called "background of the invention" where it discusses prior art.

https://patents.google.com/patent/US6869588B2/en?inventor=darrell+fisher&oq=darrell+fisher

That's why I said:

original patent expired years ago and that any weak "improvements" will not stop someone from creating their own that is newer, different, and/or better.

Trying to "extend" an original patent with weak "improvements" will not hold up.

It also doesn't help when it says, "status expired - lifetime." That was 2018.