Laboratory Corp. of America Holdings v. Metabolite Laboratories, Inc.
Supreme Court of the United States
1Per curiam
The writ of certiorari is dismissed as improvidently granted.
The Chief Justice took no part in the consideration or decision of this case.
2DissentJustice Breyer, joined by Justice Stevens and Justice Souter
This case involves a patent that claims a process for helping to diagnose deficiencies of two vitamins, folate and cobalamin. The process consists of using any test (whether patented or unpatented) to measure the level in a body fluid of an amino acid called homocysteine and then noticing whether its level is elevated above the norm; if so, a vitamin deficiency is likely.
The lower courts held that the patent claim is valid. They also found the petitioner,…
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- Diamond v. DiehrSupreme Court of the United States · 1981
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