Jan. 28: Patent Patentability SKH
From Bill Goodwine's Wiki
Hotchkiss, A&P
Hotchkiss talks about the nonpatentability of a device which merely substitutes one material for another and the A&P decision restricts what can be patented to those things which are already known to prior art and says that combinations of prior art does not necessarily warrant patent protection, saying "commercial success without invention will not make patentability."
