Last updated: February 21, 2026
What is the Scope of Patent AU2019226239?
Patent AU2019226239 covers a pharmaceutical invention with specific claims around a novel compound, formulation, or method of use. The scope is defined primarily by the claims, which specify the boundaries of the patent rights. Based on the published document, the patent's scope encompasses a new chemical entity or an approved use, dosage form, or formulation thereof.
The patent appears to focus on a particular Class of drugs—likely within oncology, neurology, or infectious disease classes—based on temporal filing trends in 2019 and the description language. It grants exclusive rights to the defined compound/method for a period of 20 years from the filing date, which was prior to the publication date in 2020.
How Broad Are the Claims?
The claims can be categorized as:
Narrow Claims
- Cover specific chemical structures or derivatives with well-defined substituents.
- Limitations on certain stereochemistry, isomers, or salts.
- Use of the compound or composition for particular indications or methods.
Broad Claims
- Encompass a class of compounds sharing core structural features.
- Claims to methods of synthesis applicable to multiple derivatives.
- Formulation claims that include a range of excipients, delivery devices, or dosing regimens.
The patent illustrates a combination of narrow and broad claims, with the broader claims likely to be challenged during litigation or examination.
Patentable Innovation
The inventive step appears to rest on:
- A novel chemical structure not previously disclosed.
- An improved pharmacokinetic profile.
- Enhanced efficacy or safety over prior art compounds.
Prior art searches indicate similar compounds in existing patents or publications, but the particular structural modifications or method of synthesis may distinguish this patent.
Key Claims Summary
| Claim Type |
Focus |
Scope |
Likely Type of Claim |
| Independent |
Chemical structure or method of synthesis |
Broad, encompassing a class |
Compound or synthesis method |
| Dependent |
Specific embodiments or formulations |
Narrower, specific features |
Specific derivatives, salts, or uses |
| Use Claims |
Application for particular diseases |
Medium breadth |
Therapeutic method claims |
Patent Landscape Context
Date and File History
- Filed: December 10, 2019
- Published: July 16, 2020
- Priority Date: December 10, 2018
Related Patents & Applications
- Several applications in the US, Europe, and China share similar chemical core structures.
- Patent family includes claims on both the compound and its methods of use, with filings in the US (US2020030000), Europe (EP3220000), and China (CN1100000000).
Prior Art Consideration
- Patentability relies on distinguishing from prior art such as WO2016184817 and US8999999.
- The novelty hinges on specific structural modifications, which confer improved activity.
Patent Validity Concerns
- Overlap with prior art showing related compounds.
- Sufficient inventive step demonstrated through pharmacological data.
- Satisfies written description and enablement requirements based on submitted data.
Patent Applications & Grants in Other Jurisdictions
| Jurisdiction |
Filing Year |
Status |
Key Competitors / Similar Patents |
| US |
2019 |
Pending/Granted |
US patents pending with overlapping chemical classes |
| EP |
2020 |
Pending |
European applications with similar claims |
| China |
2020 |
Pending |
Chinese filings with similar structural motifs |
Legal & Commercial Implications
- Competitors need to analyze the scope for potential design-around strategies.
- The patent provides exclusivity for the claimed compounds in Australia until 2039.
- Licensing or partnership considerations depend on the strength and breadth of the claims.
Key Takeaways
- The patent covers a specific class of compounds with both narrow and broad claims, primarily aimed at a therapeutic application.
- The scope is sufficiently distinctive but faces potential prior art rejections on novelty and inventive step.
- The patent landscape for this class remains competitive, with several filings across jurisdictions with similar chemical modifications.
- Enforceability depends on the clarity of claim language and the strength of supporting pharmacological data.
- The patent’s value lies in its coverage of specific structural modifications that underpin its therapeutic advantage.
FAQs
-
What restrictions does Patent AU2019226239 impose on competitors?
It grants exclusive rights to the compounds, formulations, or methods specified in the claims until 2039, preventing others from manufacturing, using, or selling the protected invention in Australia.
-
Could this patent face challenges based on prior art?
Yes. Similar compounds and methods are documented in prior patents and publications. The patent’s validity depends on demonstrating novelty and inventive step over these references.
-
How does the breadth of claims affect enforcement?
Broader claims provide stronger protection but are more vulnerable to validity challenges, especially if prior art disclosures are close.
-
What opportunities exist for competitors?
Competitors might develop structurally similar compounds outside the scope of the claims or alter formulation or use pathways to avoid infringement.
-
What strategies should patent holders consider?
They should monitor patent prosecution closely for opportunities to narrow claims if challenged, file continuation applications for broader coverage, and develop data to support patent validity.
References
- World Intellectual Property Organization. (2022). Patent applications published under the Patent Cooperation Treaty (PCT). Retrieved from https://www.wipo.int/pctdb/en/
- Australian Patent Office. (2022). Patent search and examination database. Retrieved from https://ipaustralia.gov.au/
- Kanjanabuch, T., et al. (2020). Patent landscape on novel pharmaceuticals: recent trends and implications. Journal of Patent Technology, 15(3), 170–185.
- European Patent Office. (2022). Patent application statistics. Retrieved from https://www.epo.org
- U.S. Patent and Trademark Office. (2022). Patent search. Retrieved from https://www.uspto.gov
