Holding: The process patent that Prometheus Laboratories had obtained for correlations between blood test results and patient health is not eligible for a patent because it incorporates laws of nature.
Judgment: Reversed, 9-0, in an opinion by Justice Breyer on March 20, 2012.
Merits Briefs for the Petitioners
Amicus Briefs in Support of the Petitioners
Amicus Briefs in Support of Neither Party
Merits Briefs for the Respondent
Amicus Brief in Support of the Respondent