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

Tarun Khurana at Khurana & Khurana says corporates must take the lead if patent filing activity is to truly translate into innovation
Michael Moore, head of legal at Glean AI, discusses how in-house IP teams can use AI while protecting enforceability
Counsel for SEP owners and implementers are keeping an eye on the case, which could help shape patent enforcement strategy for years to come
Jacob Schroeder explains how he and his team secured victory for Promptu in a long-running patent infringement battle with Comcast
After Matthew McConaughey registered trademarks to protect his voice and likeness against AI use, lawyers at Skadden explore the options available for celebrities keen to protect their image
The Via members, represented by Licks Attorneys, target the Chinese company and three local outfits, adding to Brazil’s emergence as a key SEP litigation venue
The firm, which has revealed profits of £990,837, claims it is the disruptive force in the IP-legal industry
In the first of a two-parter, lawyers at Santarelli analyse the patentability of therapeutic inventions where publication of clinical trial protocols occurs before the application's filing date
Arun Hill at Clarivate assesses the Top 100 Global Innovators 2026 list, including why AI has assumed a strategic importance for innovation
Practitioners and law firms should keep their eyes peeled for the shortlists for our annual awards
Gift this article