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

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

Tatiana Campello reflects on 30 years of practising at the firm, and urges women IP attorneys to think beyond the day-to-day
A David v Goliath battle involving TikTok, and Via Licensing Alliance adding new members to its Voice Codec patent pool, were also among the top talking points
Latham & Watkins bolstered its IP litigation bench in California with the addition of Kieran Kieckhefer, as partner demand for trial-ready expertise shows no sign of slowing
With the launch of a new patent eligibility AI tool, Sterne Kessler is leading a growing movement of law firms taking AI development into their own hands
UPC cases are (very) gradually becoming more distributed across other local divisions outside Germany, which can only be good news for the pan-European forum
Clarification concerning jurisdictional reach and latest stats released by the court were also among the top talking points in recent weeks
Although unanimous decision by the top court clarifies several aspects of the honest concurrent use defence, practitioners say ambiguities remain
Tristan Sherliker says he hopes to solve an access to justice issue by making the automated court bundle tool free to use
The team, comprising two partners and one senior consultant, plans to offer “highly differentiated” services to clients
HGF’s new ownership model frees it from the hiring constraints of traditional partnerships, its CEO told Managing IP
Gift this article