Posts Tagged: "justice cardozo"

icrosoft wanted to see that changed, with prior art not considered by the Patent Office requiring a lower evidentiary threshold to invalidate. To rule in Microsoft’s favor would have required the Supreme Court to throw away 30 years of well-settled Federal Circuit law, as well as overruling Supreme Court precedent in effect since at least 1934, but which traces back in some form from that date a further 100 years. That was a bridge too far for the Supreme Court, who ruled today 9-0 (with concurring opinions but no dissents) that in order to invalidate patent claims 35 U.S.C. 282 requires clear and convincing evidence regardless of whether the prior art was known by the Patent Office during prosecution of the patent application.