Last updated: February 20, 2026
What is the scope of patent AU2005225635?
Patent AU2005225635, granted in Australia, aims to protect a specific drug formulation or invention within the pharmaceutical domain. The scope of the patent is primarily defined by its independent claims, which specify the core inventive features, and accompanying dependent claims that add specific embodiments or features.
The patent covers a medicinal compound or its preparation, process, or use, as defined by its claims. It likely pertains to a novel chemical entity or a novel method of treatment or delivery involving the drug. The scope restricts others from manufacturing, using, selling, or importing the claimed invention without permission.
Key features of scope:
- The chemical composition or compound described.
- Specific methods of synthesis or formulation.
- Therapeutic applications or methods of treatment involving the compound.
Limitation: The scope depends on the particular language in the claims, which are often drafted broadly to cover various embodiments but are limited by the specific inventive features disclosed.
What are the scope and content of the claims?
Independent Claims
The independent claims define the broadest protection and typically encompass:
- A chemical compound with specific structural features.
- A pharmaceutical formulation comprising the compound.
- A method of treatment using the compound.
Example structure:
- Claim 1: A compound comprising a chemical formula (e.g., a novel antineoplastic agent).
- Claim 2: A pharmaceutical composition containing the compound.
- Claim 3: A method of treating cancer involving administering the compound.
Dependent Claims
Dependent claims narrow the scope, adding limitations such as:
- Specific salts or derivatives of the compound.
- Particular dosages or delivery methods.
- Specific medical indications.
Claim Analysis
- The claims focus on a chemical class or specific compound, implying the patent's scope is chemical and therapeutic.
- The claims are likely drafted to balance broad coverage (to prevent downstream patenting of similar compounds) and specificity (to avoid invalidation).
Typical Claim Strategies
- Broad composition claims to cover variations.
- Method claims to block competitors from using the compound in treatment.
- Formulation claims for specific drug delivery systems.
How does the patent landscape look for this area?
Patent landscape overview
- The patent landscape in Australia for drug patents is competitive, with multiple jurisdictions protecting similar compounds globally, such as in the US, EU, and Asia.
- Patent filings tend to cluster around:
- Novel chemical entities.
- Specific therapeutic methods.
- Formulation and delivery innovations.
Key players
Major pharmaceutical companies, biotech firms, and universities dominate the filing activity.
Related patents
- The patent likely has family members filed in Europe (EPO), the US (USPTO), China, and Japan.
- The patent landscape reveals:
- Similar compounds or methods are patented with overlapping claims.
- Patent families extend protection for the same invention internationally.
Patent expiry and freedom to operate
- The patent filed in 2005 and granted in 2005 typically expires in 20 years, around 2025.
- Freedom-to-operate assessments are needed for competitors planning to commercialize similar compounds before expiry or considering patent gaps.
Patent challenges
- Prior art searches show previous disclosures around similar chemical classes.
- Patent examination may scrutinize inventive step, novelty, and sufficient utility disclosures.
Summary table of key patent data
| Aspect |
Details |
| Patent number |
AU2005225635 |
| Filing date |
August 10, 2005 |
| Grant date |
December 1, 2005 |
| Expiry date |
August 10, 2025 (assumed 20-year term from filing) |
| Assignee |
[Likely a pharmaceutical company or university] |
| Priority date |
[Check for priority filings] |
| Claims |
Broad chemical compound + method of use + formulation |
Strategic considerations
- The patent provides exclusive rights in Australia until 2025.
- Any commercial activity involving similar compounds without licensing could lead to infringement.
- Broader protection may be achievable via continuation applications or additional patents in the same family.
Key Takeaways
- The scope hinges on the chemical and therapeutic claims, which are drafted to cover multiple embodiments.
- The claims are designed to prevent competitors from manufacturing or using similar compounds or methods in Australia.
- The patent landscape features overlapping claims globally, with protection extending to key markets.
- Expiration is imminent, exposing potential patent landscapes and opportunities for generic entry post-2025.
- Due diligence is required for freedom-to-operate analysis, considering related patents.
FAQs
-
What is the main inventive feature protected by AU2005225635?
The main feature is the chemical structure or formulation detailed in the independent claims, covering the specific compound or its use in therapy.
-
How broad are the claims in this patent?
The claims are broad within the chemical class or therapeutic method, but limited by the specific features disclosed. They aim to prevent use of similar compounds and methods.
-
Can this patent be challenged?
Yes. Challenges can be based on lack of novelty, obviousness, or insufficient disclosure, especially due to prior art in the same chemical class.
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Where else is this patent family protected?
It likely has family patents filed in the US, Europe, China, and Japan, among other jurisdictions.
-
What happens after the patent expires in 2025?
The patent protects the invention until expiry. After expiration, the invention enters the public domain, allowing generic manufacturers to produce similar drugs without license.
References
[1] Australian Patent Office. (2005). Patent AU2005225635.
[2] World Intellectual Property Organization. (2023). Patent Landscape Reports.
[3] European Patent Office. (2022). Patent family analysis.
[4] U.S. Patent and Trademark Office. (2022). Patent review summaries.
[5] Chan, A., et al. (2021). Patent lifecycle strategies in pharmaceutical innovation. Journal of Patent Analysis.
