Sad to see this, if patent law is not working right it can actually make negative impact. I am curious why topping did not patent it in the first place? Maybe it costs a bit but topping is selling quite a lot. Is it because the design is actually not innovative enough so you guys don't bother, but patent office mistaken it to be innovative? That probably happened a lot of times given they probably are not experts in any field.......After my NFCA circuit got copied and supposedly patented(in China) by a different company and even there are clear errors in the patent filing, it drove me mad like no tomorrow. I of course would go extra mile protecting all the hours that went in.