Filing a patent in Australia is one of the most effective ways to protect an invention and secure exclusive commercial rights. Whether you are an individual inventor or a business with a new product or process, understanding how to file a patent in Australia is essential to making informed decisions about your IP strategy. This guide walks through the complete patent filing process in Australia, including provisional applications, complete applications, and international PCT filings managed through IP Australia.
Step 1: Determine Whether Your Invention Is Patentable
Before filing a patent in Australia, the first step is to assess whether your invention qualifies for patent protection. Under Australian patent law (Patents Act 1990), an invention must be:
- Novel — not previously disclosed in any prior art anywhere in the world
- Inventive — not obvious to a person skilled in the relevant field
- Useful — capable of industrial application
- Patentable subject matter — not excluded (e.g. purely mental steps, human biological materials, abstract mathematical algorithms)
ipReNewAl can assist with coordinating a prior art search to assess novelty before you commit to filing fees.
Step 2: Conduct a Prior Art Search
A prior art search examines existing patents, published patent applications, and scientific literature to determine whether your invention has already been disclosed. IP Australia provides free access to AusPat, its patent database, where you can search published Australian and international patent documents. A professional prior art search conducted by an experienced patent searcher gives a more thorough assessment and helps identify potential obstacles before filing.
Step 3: Choose the Right Patent Filing Pathway
Australia offers two main patent application types plus the international PCT route:
Provisional Patent Application
A provisional application is the most common first step for inventors in Australia. It establishes a priority date and gives you 12 months to develop your invention, seek investment, and prepare a complete application. The provisional does not get examined and cannot be granted — its sole purpose is to lock in a filing date. Government fees for a provisional application start from approximately AUD $110.
Complete (Standard) Patent Application
A complete application is the main application that, once examined and accepted, results in a granted patent. You can file a complete application directly (without a prior provisional) or as a follow-on within 12 months of a provisional filing. Standard patents last up to 20 years from the filing date. The examination process involves IP Australia assessing your claims for novelty and inventiveness.
PCT International Application
If you intend to seek patent protection in multiple countries, the Patent Cooperation Treaty (PCT) route allows a single international application to cover more than 150 countries simultaneously. A PCT application filed from Australia claims the same priority date as your original Australian filing. After the international phase (typically 30 months from priority date), you enter the national phase in each target country. ipReNewAl coordinates PCT filings and national phase entries for Australian applicants.
Step 4: Prepare the Patent Specification
The patent specification is the most important document in any patent application. It describes the invention in full technical detail and contains the patent claims — the legal statements that define the scope of protection being sought. A well-drafted specification must:
- Describe the invention fully and clearly
- Enable a person skilled in the field to reproduce the invention
- Include claims that are novel, inventive, and supported by the description
- Satisfy IP Australia formatting requirements
Patent specification drafting is technically complex and typically requires specialist knowledge of both the relevant technology and patent law. ipReNewAl supports applicants through its patent application drafting service, coordinating with experienced IP professionals to prepare specifications to the required standard.
Step 5: File the Application with IP Australia
Patent applications in Australia are lodged with IP Australia through the AusPat online portal. Filing can be done electronically 24 hours a day. Upon lodgement, IP Australia issues an official filing receipt and assigns a patent application number. You will receive immediate confirmation that your priority date has been established.
Key fees payable at filing include the application fee, claims fee (if more than a specified number of claims), and any additional pages fee. ipReNewAl coordinates the preparation and submission of all documentation required for filing on behalf of clients. For a complete overview of our patent filing service in Australia, visit our dedicated service page.
Step 6: Request Examination
For standard patents, examination must be requested within 5 years of the filing date (or 2 years from filing if the application was filed before April 2024). A request for examination triggers IP Australia to assign an examiner who assesses the application against the requirements of the Patents Act. The examination fee is payable at this stage. It is generally advisable to request examination sooner rather than later to move the application toward grant.
Step 7: Respond to Examination Reports
IP Australia may issue one or more examination reports (office actions) raising objections to the claims or specification. Common objections include lack of novelty, lack of inventiveness, insufficient disclosure, and claims that are too broad. Applicants have the opportunity to respond with written arguments and/or amendments to the claims. Skilled handling of examination responses is critical to achieving broad, enforceable patent claims.
Step 8: Acceptance, Publication, and Grant
Once the examiner is satisfied, the application is accepted and published in the Australian Official Journal of Patents. A 3-month opposition period follows, during which third parties may oppose the grant. If no valid opposition is filed (or an opposition is resolved in favour of the applicant), the patent is formally granted and the applicant receives a letters patent certificate. Annual renewal fees are then payable to keep the patent in force for up to 20 years from the filing date. ipReNewAl assists with ongoing patent and trademark renewals to ensure your IP portfolio remains active.
How Long Does It Take to File a Patent in Australia?
Filing itself takes only minutes once documents are prepared. However, the overall timeline from filing to grant typically takes 3 to 5 years for standard patents, depending on examination complexity. A provisional application establishes a priority date immediately. Requesting early examination, filing well-drafted claims, and responding promptly to examination reports all help to reduce the timeline.
How Much Does It Cost to File a Patent in Australia?
IP Australia fees vary depending on the application type and stage. Provisional application fees start from approximately AUD $110. Complete application filing fees, examination fees, acceptance fees, and annual renewal fees apply separately. Professional fees for specification drafting and prosecution support vary based on the complexity of the invention. ipReNewAl provides transparent cost guidance before clients commit to filing.
Frequently Asked Questions: How to File a Patent in Australia
Do I need a patent attorney to file a patent in Australia?
You can self-represent before IP Australia, but given the technical and legal complexity of patent specification drafting, most applicants work with IP professionals. ipReNewAl coordinates with experienced patent attorneys and IP professionals to support applicants through the filing and prosecution process.
Can I file a patent online in Australia?
Yes. IP Australia accepts online filings through the AusPat portal 24 hours a day, 7 days a week. Electronic filing provides immediate acknowledgement of receipt and confirms your priority date.
What is the difference between a provisional and a standard patent in Australia?
A provisional application establishes a priority date and gives 12 months to file a complete application. It is never examined and cannot be granted as a patent. A standard (complete) patent application is examined and, once accepted, results in a granted patent with enforceable rights for up to 20 years.
Can an Australian patent protect me internationally?
An Australian patent provides protection in Australia only. For international protection, you can file a PCT application (covering 150+ countries) or file separately in each country of interest. The priority date from your Australian application can be used in international filings if done within 12 months of your Australian priority date.
What happens if someone infringes my Australian patent?
Once a patent is granted, the patent holder can take legal action against infringers through the Federal Court of Australia or the Federal Circuit and Family Court. ipReNewAl supports clients with IP portfolio management, renewals and compliance monitoring, but legal proceedings should be pursued with the assistance of a qualified patent attorney.
