3, because patents cost a bloody packet and people often just say they've filed for a patent when in fact they havent, in an attempt stop people from copying an idea - so the patent may never be in existance. Unless hes got a lawyer friend, it will cost him a small fortune...
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Hypocritical Signature I tried to delete: Procooling: where scientific principles are ignored because big corporations are immune to mistakes and oversights.
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