After Myriad Oral Argument, Supreme Court Set to Decide Patentability of Isolated Human DNA Molecules

Today, the Supreme Court of the United States heard oral argument in Association for Molecular Pathology v. Myriad Genetics, Inc. (No. 12-398) to decide the question, “Are human genes patentable?” The Court’s decision in Myriad could have broad implications for biotechnology companies. Morrison & Foerster was present at the argument. Although one must be cautious about reading tea leaves from oral argument, a majority of Justices at the argument seemed skeptical that isolated human genes are patentable subject matter.


Myriad Genetics, Inc. is the patentee of several U.S. patents with claims directed to the human genes BRCA1 and BRCA2. The presence of mutations in these genes is highly correlated with the risk of developing breast or ovarian cancer. A coalition of groups and individuals brought a declaratory-judgment action over the patentability of the BRCA1 and BRCA2 claims.

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