Copyright is a funny thing - as I understand it, you can copyright an idea, but not the expression of an idea. I set up a business in Hong Kong (so essentially UK law) with my own intellectual property working across Asia and approached a copyright lawyer about how I could protect myself. He basically said forget it. Anyone can take, for example, your Powerpoint, alter three words and it's theirs.
With something physical - like a mouthpiece - you might be in with a better chance of proving plagiarism but in China???? If Rolex can't stop copies coming out of Asia, then Morgan - with great respect - has no chance!