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Quick facts
Firm - Year of Establishment

1969

Number of Partners

12

Total Number of IP Practitioners

21

Spoken at the Firm

English, German, Mandarin, Cantonese

Network Memberships

IPTA, AIPPI, FICPI

Key practice areas
Intellectual property
Trade mark
Patent
Patent prosecution
Trade mark prosecution
Trade mark - patent & trade mark attorney firms
Firm overview

Madderns is a leading, privately-owned Patent and Trade Mark Attorney firm that protects the intellectual property assets of innovative businesses, organisations and individuals. Headquartered in Adelaide but reaching across Australia and internationally, our experienced team of attorneys provides highly-specialised intellectual property services and advice to enable our clients to secure and defend their brands and technologies. As intellectual property specialists, we work closely with our local and international clients to identify their unique needs and protect their interests in Australia, New Zealand and other overseas markets. For more than 50 years, we have supported the varied needs of a diverse client base that ranges from global companies and overseas IP firms to small to medium enterprises and individual innovators. Whether it’s a patent, trade mark, a design or domain name, our experienced team, many having PhD qualifications in their field of expertise, is on-hand to provide strategic and commercially relevant advice to support you in protecting your intellectual property. At Madderns, we’re driven to help you succeed. We build long-term relationships to ensure the intellectual property assets of our clients are protected in their markets.

 

Practice Areas & Sector Specialisations

Key IP Areas
Patent prosecution, Trade mark prosecution, Life sciences IP, Designs
 
Key Sector Expertise
Biotechnology, Chemical, Computer technology & services, Automotive, Defence, Electronics, Food & beverage, ICT & software, Life sciences, Medical device, Optics & photonics, Pharmaceutical, Oil & gas, Universities & research, Telecommunication

Address:
Level 40, 140 William Street
Melbourne VIC 3000
Tel:+61883118311 Fax:+61883118300 Email:Contact Us Web Address:http://www.madderns.com.au
2026 Edition
Patent prosecution
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Overview

Founded in 1968, Madderns is an independently owned patent and trade mark attorney firm that services clients across Australia and the Asia-Pacific region. The firm focuses on technology and engineering IP matters and has several domestic clients and patent attorneys in technical fields such as electronics, computer technology, and life sciences. It also has trademark clients in other sectors, including beverage and fashion. 

Notable patent practitioners: Jeff HolmanMartin Pannalland Tom Melville. 

 
 
 
Testimonials

2026

"Personalised, professional service. Able to tailor advise for inventor understanding"

"They understand our business operations because they have acted for us for over 25 years. They are very knowledgeable in the trademark area and excellent to work with."

"Their advice is excellent and provided in a fast, timely manner."

"This team provides very timely, accurate and cost-effective services"

Louise Emmett

"She listens well & provides excellent advice. Louise carries out registrations and oppositions in a fast, timely manner."

Megan Ryder

"Megan is very approachable and takes the time to understand our needs and the complexities of our organisation.  She is able to formulate very tailored and pragmatic solutions to help us achieve our organisational goals."

 

2025

"Competence, responsiveness, and cost-effectiveness."

"Easily accessible and a great team to work with."

"Madderns provides us good quality service and good quoting on Australian patent filing."

"Professional, flexible, highly-skilled"

"Reliable and diligent."

"The firm provides a very friendly and personalised approach whilst retaining their high professional standards. 

"The team is easy to work with. Their fees are also very reasonable."

"They are legally and technically very capable. Importantly, they are also very personable, flexible and go out of their way to be helpful."

Megan Ryder

“Very responsive and diligent in her engagement with us."

Linked Reviews
Patent

Case studies show the firm represents Sparc Hydrogen in prosecuting its global patent portfolio for a novel solar hydrogen reactor, with patents already granted in several jurisdictions. Clients include Immutep and VE Motion. 

Trade mark

Case studies show the firm successfully acted for Hamilton & Co Legal in defending a trademark opposition filed by Hamilton Locke, resulting in the client's mark proceeding to registration. Clients include Ashwood Estate and Torbreck Vintners. 

IP firm leaders share why they remain positive in the face of falling patent applications from US filers, and how they are meeting a rising demand from China
Managing partner Mark O’Donnell explains why people are at the centre of the Australian outfit’s investment focus and how being independent benefits the firm
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