Welcome to Patent Products Australia Pty Ltd

Patent Products is a specialist Australian Manufacturer of Galvanised Steel and Stainless Steel Grates and Frames and has been in business since 1970.

We make Grates and Frames to all different sizes and class, from Class A to Class G (A B C D E F G) and from different material – galvanised steel, stainless steel and aluminium.

Our grates are made to the Australian Standard AS3996 for load ratings and safety. All products are Australian made, manufactured in our Northgate factory, Brisbane, Queensland.

We have a standard range and can make custom grates, lids and frames.
We send grates all over Brisbane, Queensland, Sydney, NSW, Melbourne and Australia wide.

About Us



About Our Products

We have a standard range of grates and frames in stock and can custom make for a variety of projects and applications.

Our products include driveway grates, concrete channels, trench grates, pedestrian heel proof grates, dome and surcharge grates, stainless steel grates and frames, road gully grates and heavy-duty grates and frames for either industrial, commercial or domestic applications.

Our turnaround time is normally one to two weeks, even for custom orders. We can make any length, depth and width. If you need to replace existing grates, we can help. We can send Australia wide.

With over 50 years of experience in design and manufacture, customers can rest assured, our products meet and exceed quality and safety requirements.


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6 Frederick St,
Northgate QLD 4013

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