Myriad Genetics had argued it held the patent over the BRCA-1 and BRCA-2 genes which, if present, dramatically increase a woman’s chance of developing breast and ovarian cancer.
But Yvonne D’Arcy, 69, argued the genes existed in nature, so were discovered rather than invented.
The company succeeded twice in the Federal Court, but the High Court today overturned those decisions as it ruled unanimously in Ms D’Arcy’s favour.
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