How to File a Patent in Australia with IP Australia
To file a patent in Australia, lodge an application with IP Australia for an invention that is novel, involves an inventive step and is useful. You can file a provisional first to secure a priority date, then a complete application within the priority year. Australia is first-to-file, and examination must be separately requested.
Filing a patent in Australia means dealing with IP Australia, the federal authority that administers patents, trade marks and designs, under the Patents Act. The process will look broadly familiar to anyone who has filed elsewhere, but Australia has a few features worth understanding up front: it is first-to-file, it lets you start with a provisional application to lock in a priority date, and it treats examination as a step you must separately request rather than something that happens automatically. One change matters in particular for newcomers: the innovation patent, Australia's old second-tier patent right, has been phased out and is no longer available for new filings, so the standard patent is now the route for most applicants. This guide walks through that route from filing to grant, and the two main ways foreign applicants reach Australia: the Patent Cooperation Treaty (PCT) national phase and the Paris Convention priority route. For the wider picture of protecting an invention in Australia, see our Australia patents overview.
This is general information rather than legal advice. Australian patent practice is procedural and strict on deadlines, and most applicants act through a registered Australian patent attorney. Treat the timelines below as orientation and confirm the current periods and fees with IP Australia or local counsel before you act.
What you can protect, and the core requirements
A standard patent in Australia protects an invention, which must be a manner of manufacture, a long-standing statutory concept developed by the courts rather than a simple checklist. It does not reduce to producing a tangible result, and the patentability of software-implemented inventions, business methods and biological materials in particular is contested and highly fact-specific, so whether your subject matter qualifies is a point to settle with counsel rather than assume. Beyond eligible subject matter, a patentable invention generally needs to be novel, involve an inventive step and be useful, and these are assessed by an examiner during examination rather than at filing.
Novelty means the invention must not already form part of the prior art base, so it must not have been publicly disclosed, used or published anywhere before the priority date. Australia applies an absolute (worldwide) novelty standard, which means the prior art is not limited to local disclosures and that a disclosure you make yourself, anywhere and before filing, can count against you. The inventive step requirement asks whether the invention would have been obvious to a person skilled in the relevant field in light of what was already known. Usefulness requires that the invention does what the specification says it will. Beyond these, the specification must disclose the invention clearly and completely enough for a skilled person to perform it, and the claims must be clear, supported and not broader than what has been disclosed.
It is worth noting that patents are not the only form of protection and that Australian practice differs from some other systems on related rights. Copyright in Australia arises automatically and there is no copyright registration system, so written, artistic and software works are protected without any filing. Registered designs protect the visual appearance of a product, are filed nationally because Australia is not a member of the Hague designs system, and importantly a registered design must be examined and certified before it can be enforced. Which right fits your situation is a point to discuss with counsel rather than assume the patent route is the only option.
First-to-file, and the provisional then complete route
Australia is a first-to-file jurisdiction, so where two applicants independently reach the same invention, the one who files first generally has priority regardless of who invented it first. The practical lesson is to file early and to file before you disclose.
The most common way to manage this is to start with a provisional application. A provisional secures a priority date for the invention it describes without itself proceeding to a granted patent. It buys time, generally around twelve months (confirm the current period with IP Australia), during which you can develop the invention commercially, assess its value and prepare a fuller filing. To obtain a patent you must then file a complete application, either a standard complete application directly or one that claims priority from the provisional, within the priority period. If you let the priority period lapse without filing complete, you lose the benefit of the provisional's date. The priority year is the same window that the Paris Convention uses internationally, which is why the two fit together neatly for applicants filing abroad; for the treaty itself, see our Paris Convention guide.
A complete application can also be filed first, without a provisional, where you are ready to proceed and do not need the extra time.
The specification and claims
The heart of any patent application is the specification. It must describe the invention fully, including the best method known to the applicant of performing it, and it must end with one or more claims that define the scope of the monopoly you are seeking. The claims are what an examiner assesses for novelty and inventive step and what a court would later interpret in any infringement dispute, so claim drafting is the part of the process where professional help most clearly earns its keep.
A provisional specification can be lighter than a complete one, but it still needs to disclose the invention well enough to support the priority claim you later rely on. A common and costly mistake is to file a thin provisional and then find that the complete application's claims are not adequately supported by it, which can undermine the priority date for the parts that matter most. The safer approach is to make the provisional as complete as the state of the invention allows.
Requesting examination
Lodging a complete application does not by itself put it into substantive examination. In Australian practice you must separately request examination and pay the associated fee, and IP Australia may also direct you to request examination, after which a deadline applies. There is a period within which the request must be made, and if it is not requested in time the application can lapse, so this is a deadline to diary carefully and confirm with IP Australia or your attorney rather than rely on a remembered figure. Applicants sometimes defer the request within the allowed window to keep options open while assessing the commercial value of the invention.
A note of caution on disclosure timing: Australia provides a limited grace period, generally up to twelve months, that may in defined circumstances allow an applicant to file despite certain earlier disclosures of their own invention. The conditions, the precise length and the kinds of disclosure it covers are specific and easy to get wrong, so confirm them with counsel. Two points make it dangerous to rely on. First, relying on a grace period is far riskier than simply filing before any disclosure. Second, even where the Australian grace period applies, many other countries have no equivalent or a narrower one, so an earlier disclosure that Australia forgives can still destroy your rights abroad. Treat this as a confirm-with-counsel point and do not plan around it.
Examination, acceptance and opposition
Once examination is requested, an examiner reviews the application against the patentability requirements and for formal and clarity issues. If the examiner raises objections, these are set out in an examination report (an office action), to which you can respond by argument and by amending the claims or specification, within the limits on adding new matter. There is generally an overall period within which the application must be put in order for acceptance, so prosecution cannot run indefinitely; confirm the current acceptance deadline with IP Australia.
If the examiner is satisfied, the application is accepted and the acceptance is advertised. Acceptance opens a window during which a third party can oppose the grant before the patent issues. Opposition is a defined procedure with its own grounds and timing, and it is one reason grant is not always the end of the contest. If no opposition succeeds, the patent proceeds to grant.
Grant and maintenance fees
On grant the applicant becomes the patentee and the patent is recorded on the register. A standard patent runs for a maximum term measured in years from the filing date of the complete application, subject to keeping it in force, with an extension of term available in limited cases, notably for certain pharmaceutical patents where regulatory approval delayed commercial marketing. Treat the exact term and any extension rules as confirm-with-counsel, since they are set by statute.
Keeping a patent in force requires paying periodic maintenance fees, often called renewal or continuation fees, which fall due on a recurring basis and typically increase over the life of the patent. Missing a maintenance fee can cause the patent to lapse. Official fees apply at filing, on requesting examination, on grant and for maintenance; because fees change and depend on the specifics of your application, confirm the current amounts with IP Australia or local counsel rather than rely on any figure quoted second-hand.
The innovation patent is no longer available
Australia previously offered the innovation patent as a faster, second-tier right with a lower threshold and a shorter term. That right has been phased out and is not available for new filings, so it should not feature in any current filing strategy. Anyone researching older Australian guidance will still encounter references to it, which is why it is worth being clear about its status. Our guide on the innovation patent phase-out explains what happened, what it means for existing rights and what the alternatives now are.
Reaching Australia from abroad: PCT and Paris priority
Most foreign applicants reach Australia by one of two international routes, and the choice usually depends on how many countries you are targeting and your timing.
The PCT national-phase route is common where you want protection in several countries. You file a single international application under the PCT, which preserves an effective filing date across member states, then later enter the national phase in each country you choose, including Australia, by meeting that country's requirements and national fees within the prescribed national-phase deadline. Entering the Australian national phase still leaves you needing to request examination, so that step does not disappear simply because you arrived via the PCT. For how the international system works generally, see our PCT guide.
The Paris Convention priority route suits applicants filing directly in a smaller number of countries. If you file a first application in one Paris Convention country, including via an Australian provisional, you can file corresponding applications in Australia within the priority period (commonly around twelve months for patents, but confirm the current period and its calculation with IP Australia or counsel) and have them treated, for assessing prior art and intervening filings, as if filed on your original priority date. The two routes are not mutually exclusive; a PCT application itself commonly claims Paris priority from an earlier national filing.
A practical sequence
The following summarises the typical order of events. The exact periods are set by statute and should be confirmed with IP Australia or counsel.
| Stage | What happens |
|---|---|
| Priority filing | File a provisional (or a first application elsewhere) to set the priority date |
| Complete application | File a standard complete application within the priority year, claiming priority |
| Request examination | Separately request examination within the applicable period, or the application can lapse |
| Examination | IP Australia examines; respond to reports by argument or amendment, within the acceptance period |
| Acceptance and opposition | Acceptance is advertised; a third party may oppose during the opposition window |
| Grant and maintenance | Patent is granted and recorded; pay maintenance fees to keep it in force |
Where to get this right
Australian patent prosecution rewards early filing, a strong specification and disciplined diary management of two deadlines in particular: the priority or national-phase entry deadline, and the request for examination. Getting either wrong can be fatal to the application.
IPEnvoy is not a law firm and does not provide legal advice. This page is general information to help you understand the process, not a substitute for advice on your specific invention. You should confirm the current position with IP Australia's official website and instruct a qualified local IP professional. IPEnvoy can connect you with vetted local counsel in Australia and coordinate filings across multiple jurisdictions where you need protection in more than one market.