I know only what I've read in the article re:this case, but I don't see enough to know the merits. In particular, if YOU import something, you are responsible

I know only what I've read in the article re:this case, but I don't see enough to know the merits. In particular, if YOU import something, you are responsible for ensuring it doesn't violate a patent, as I understand it. (See: recent Dollar Shave Club lawsuit). That the German company did this "first" is relevant for overturning the patent, but that doesn't invalidate the case until said patent is dead, regrettably. I can't tell from this article what's going on with enough detail, so it may or not be egregious behavior from either party, or just a "reasonable" legal dispute.