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Doesn't seem to say there's a functional human trial. https://patents.google.com/patent/US9040302B2/en https://patents.google.com/patent/US9040302B2/en suggests
by contingencies 5y ago
Doesn't seem to say there's a functional human trial. https://patents.google.com/patent/US9040302B2/en https://patents.google.com/patent/US9040302B2/en suggests patent expires 2031.