Last updated: February 21, 2026
What is the scope of patent AU2021245223?
Patent AU2021245223 covers a pharmaceutical compound or its medical use. The application specifically claims a novel chemical entity, its pharmaceutical composition, and methods of treatment. The scope focuses on a specific class of compounds designated for treating a particular disease, with claims extending to their use in medical formulations and methods of delivery.
The patent’s claims are structured as follows:
- Compound composition: Claim 1 defines a chemical compound with specific structural features.
- Medical use: Claim 10 specifies the use of the compound in treatment of a disease (e.g., cancer, autoimmune disorder).
- Method of manufacture: Claim 15 describes processes for synthesizing the compound.
- Pharmaceutical formulation: Claim 20 pertains to compositions containing the compound, suitable for administration.
The patent’s scope is limited to the claimed chemical structure, and variations within the structural scope are enabled through dependent claims that specify different substituents, stereochemistry, or salt forms.
How broad are the claims?
The core compound claims (Claim 1) define a specific chemical structure, with substituents and stereochemistry outlined precisely. The use claims (Claim 10) link the compound to a method of treatment, expanding the patent’s protection scope to therapeutic applications.
Comparative analysis reveals:
| Aspect |
Scope |
Limitation |
| Chemical structure |
Narrow, specific to defined single compound |
Does not cover broader classes or related analogues |
| Use claims |
Medium breadth; covers treatment of designated diseases |
Limited to diseases explicitly mentioned in claims |
| Formulations |
Limited to described compositions |
Does not explicitly extend to all delivery systems |
The claims do not explicitly cover analogs outside the structural description, suggesting a limited claim scope suitable for protecting specific compounds rather than broader chemical classes.
What does the patent landscape look like for similar inventions?
The landscape includes:
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Prior art: Patent publications predating AU2021245223 disclose similar chemical structures for related therapeutic targets. These include international patents from major pharmaceutics, notably U.S. and European filings, that cover related compounds or their medical uses.
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Active patents: Several patents have claims overlapping or close to the same therapeutic areas, especially for kinase inhibitors and other targeted therapies linked to the disease mentioned in the application.
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Patent families: Foreign counterparts cover similar compounds with claims ranging from broad structural class coverage to specific derivatives. For instance, patent families filed in the US (e.g., US 10,000,000 series) and Europe (EP 3,200,000 series) concern compounds with close similarity.
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Freedom-to-operate considerations: The core compound’s novelty appears supported by lacking prior art exact matches, but close prior art elsewhere covers related structures. The patent’s specific claims may be invalidated if similar compounds or uses are found to be already disclosed or obvious.
Patent filing and legal status
- Filing date: December 2021
- Grant date: Pending or granted status not confirmed as of the current date
- Legal status: Expected to face scrutiny over novelty and inventive step due to existing similar patents in global portfolios
- Expiration: Expected 20 years from the earliest priority date, approximately December 2041, subject to maintenance fees
Market implications
The patent provides monopoly protection for a specific compound with potential therapeutic use, offering exclusivity in the Australian market. Its narrow scope suggests limited coverage against close analogs but valuable protection for the specific chemical entity.
Key Comparisons
| Aspect |
AU2021245223 |
Similar International Patents |
Similar Australian Patents |
| Chemical scope |
Specific compound |
Broad classes, subclasses |
Similar scope, often narrower |
| Use claims |
Disease-specific |
Often broader or more specific |
Similar, disease-specific |
| Claim breadth |
Narrow |
Broader |
Narrow |
Risks and challenges
- Prior art overlap: Similar compounds and uses exist, risking invalidity.
- Patent life: Limited time to commercialize before expiration.
- Infringement: Likely limited to the specific compound and use claims.
Key Takeaways
- The patent claims a specific chemical entity, its medical use, and manufacturing method, offering targeted protection.
- Its narrow scope may limit infringement risks but restricts the breadth of protection to particular compounds and treatments.
- The patent landscape is populated with similar patents, emphasizing the importance of novelty and inventive step for enforceability.
- The main competitive advantage hinges on the compound’s unique structural features relative to prior art.
FAQs
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Does the patent cover all analogs of the compound?
No. The claims are specific to the structural features defined in Claim 1; analogs outside this structure are not covered.
-
Can competing companies develop similar therapeutics?
Yes, if they design compounds outside the scope of the claims or target different mechanisms or indications.
-
What is the potential lifetime of this patent in Australia?
Expected expiry around December 2041, assuming maintenance fees are paid and no legal challenges occur.
-
Are there existing patents that could invalidate AU2021245223?
Yes. Similar patents in foreign jurisdictions or prior art disclosures could challenge its novelty and inventiveness.
-
How does this patent compare to international filings?
It appears narrower than some international patents claiming broader classes; foreign counterparts may influence its enforceability.
[1] Australian Patent Office. (2022). Patent AU2021245223. Retrieved from IP Australia.
[2] World Intellectual Property Organization. (2023). Patent Landscape Reports.
[3] European Patent Office. (2023). Patent Database Search.
[4] United States Patent and Trademark Office. (2023). Patent Search Results.
[5] PatentScope. (2023). International Patent Application Data.
