Level 4 19 Gouger Street, ADELAIDE, South Australia



Madderns is an independently owned and operated Australian patent and trade mark attorney firm which services clients across Australian and around the globe.

From designing and advising on appropriate searches, through to the creation and enforcement of new patent, trade mark, design and domain name rights in Australia and overseas, Madderns provides a comprehensive range of services spanning the entire intellectual property (IP) life cycle. Madderns’ services also include assisting clients with managing their IP portfolios by conducting audits to identify and capture IP assets and providing strategic advice to help identify and manage risks associated with third party IP rights.

Madderns’ patent team has a breadth of capability across all relevant technical areas, including chemistry, ICT, mechanical engineering, mechatronics, life sciences, plant breeding rights and circuit layout rights.  Notably, Madderns’ ICT team has been recognised as one of the leading teams in this field in Australia.

Our trade marks team has particular experience in conducting contested trade mark opposition proceedings and non-use cancellation actions before the Australian Trade Mark Office.

Most of our attorneys are also registered to practice in New Zealand. Our New Zealand services include filing and prosecuting patent, trade mark and design applications directly with the Intellectual Property Office of New Zealand (IPONZ). Madderns also has an in-house Asian-focus group which includes a team of Chinese speaking patent and trade mark attorneys.

Members of Madderns’ team are active members of international professional organisations, such as IPSANZ, INTA and FICPI.

Our team is your team.