I saw some dipes on ebay that said they were made under the Fuzzi Bunz patent. What does that cover? Can you make pocket dipes... I know other wahms do it, and I've never heard it was under the patent. Does it just have to meet certain criteria....I'm curious just for information's sake, and also because I make pockets (but I don't sell them; I just use them, but what if I wanted to sell them someday?) Thanks!