[quote name='mcgraham' timestamp='1364460655' post='2026684']
Thanks.
Yes and no. It's a complicated point both in terms of physics AND patent law, and so not black and white by any stretch. In any case it doesn't matter. From a quick search you can see they ONLY have a US patent granted, so anyone anywhere else in the world can make it and not infringe, regardless of whether the patent is sound.
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Not quite true, they can sue you for infringement and you'd have to defend yourself in a US court. Whether they can afford to take action, or would bother, is another question
I did this for my dissertation in my law degree. Also US patents are famously lax in their view of prior art and also the kind of things that can be patented - see diamond v chakrabarty for instance