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

The move marks the latest step in Temu’s push to protect brands’ intellectual property by collaborating with industry groups and enforcement agencies. Managing IP learns about a rapidly scaling strategy and two success stories
A counterfeiting crackdown targeting fake FIFA World Cup merchandise and new partner hires by CMS, HGF and Winston Strawn were also among the top talking points
Law firms need to accept the hard truth: talent migration isn't personal; it's business as usual
Judge Alan Albright is to leave his role at the Western District of Texas, and could return to private practice
Stobbs has successfully seen off a contempt of court application filed against the firm and two of its lawyers
After almost a quarter of a century, Marshall Gerstein has a new managing partner
Abbott winning another round against Sinocare and Menarini, and 'long arm' clarification on the UK's position within the UPC, were also among major developments
Maria Peyman, head of IP at Birketts, explains why the firm is adopting a ‘seamless approach’ for clients by integrating two of its practice areas
Matthew Swinn, who leads the firm’s IP practice, discusses why Mallesons is well-placed to remain a major IP force
Lawyers at A&O Shearman analyse developments regarding UPC’s long-arm jurisdiction, including its scope and jurisdictional limits
Gift this article