[FROM OP:] The specific question the Court will decide is: "Whether the court of appeals erred in holding that Microsoft’s [patent] invalidity defense must be p

[FROM OP:] The specific question the Court will decide is: "Whether the court of appeals erred in holding that Microsoft’s [patent] invalidity defense must be proved by clear and convincing evidence." (From http://www.scribd.com/doc/36934612/Microsoft-i4i-Cert-Petition-patent-2010. http://www.scribd.com/doc/36934612/Microsoft-i4i-Cert-Petiti...) For more on the presumption of validity in patent cases, see http://271patent.blogspot.com/2009/08/revisiting-presumption-of-validity.html http://271patent.blogspot.com/2009/08/revisiting-presumption... For more about how cert petitions work, see http://en.wikipedia.org/wiki/Certiorari http://en.wikipedia.org/wiki/Certiorari. Hat tip: Stanford law prof Mark Lemley http://www.law.stanford.edu/directory/profile/38/ http://www.law.stanford.edu/directory/profile/38/