The grant in Australia is for the process underlying the company’s treatment of nano materials, known as the Haydale plasma process.
Crucially, Haydale added, the Australian patent is not limited to graphene materials but also covers all nano particles, which means its technology can be extended in the country to a wide range of alternative materials.
The company will also be able to license its plasma process throughout Australia.
The European patent, granted last month, has also now been received from the European Patent Office. The company already has patent protection for the process in China.
Ray Gibbs, chief executive, said: “Part of our strategy for growth is the continual development of our technology and the protection of this IP through patent applications.
“I am pleased that we now have our IP protected in China, Australia and Europe.”