Australia: Genes ruled unpatentable by High Court

Managing IP is part of Legal Benchmarking Limited, 1-2 Paris Gardens, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Cookies Settings

Australia: Genes ruled unpatentable by High Court

The High Court in D'Arcy v Myriad Genetics [2015] HCA 35 has unanimously found that isolated naturally-occurring nucleic acids coding for mutant or polymorphic genes does did not amount to patentable subject matter in Australia.

The Court overturned the findings of all the lower courts judges and diverged from its own expansive earlier authorities on patentable subject matter, preferring instead to follow US Supreme Court authority on the same case.

The court used emotive arguments in attacking the claim breadth. The majority citing "the chilling effect of the claims ... which would lead to the creation of an exorbitant and unwarranted de facto monopoly…". The jurisprudential reasons for having the patent system and the patentee's right to the broadest possible claim were not given significance.

The basis of rejection of the patent further included "the far reaching questions of public policy ... best left for legislative determination". The Court failed to recognise that its own actions are likely to lead to confusion and uncertainty as to the metes and bounds of the "new gene" patent exclusion.

In a manner reminiscent of US Supreme Court practice, a number of judges also incorporated obviousness arguments into the concept of patentable subject matter.

Of course, the net effect is that it is now more difficult to obtain protection for innovative research in the genetics area, likely leading to the serious consideration of secrecy regimes where protection is no longer available.

Peter Treloar


Shelston IPLevel 21, 60 Margaret StreetSydney NSW 2000AustraliaTel: +61 2 9777 1111Fax: +61 2 9241 4666email@shelstonip.comwww.shelstonip.com

more from across site and SHARED ros bottom lb

More from across our site

Law firms continue to sell clients on international footprints, but sprawling office networks count for little if financial structures discourage internal collaboration
Via's Qi pool expands its footprint in Asia with the addition of Chinese smartphone giant and Japanese auto company
Matthew Cassie becomes the tenth partner to join the firm’s London outpost, and the second since it opened its new headquarters in May this year
A&O Shearman and Fish & Richardson invested in German talent, meanwhile, major firms have assembled for an on the merits case pitting KeeeX against OpenAI and Adobe
Julia Bishop is director of IP at Twilio in the US
Hellberg is an IP director at Essity in Sweden
Palińska is the business & IP law lead at CD Projekt Red in Poland
Teemu Itälä is head of legal and compliance for technology standards at Nokia in Finland
David Degen is senior IP counsel at Novartis, Switzerland
Demetrio Roberto Cavicchia is an IP director at Angelini Pharma in Italy
Gift this article