Last updated: February 25, 2026
What are the core claims and scope of JP2009528272?
Patent JP2009528272, filed in Japan by a pharmaceutical entity (specific assignee not provided here), relates to a drug composition purportedly targeting a specific medical condition. The patent's claims focus on a composition comprising a specific active ingredient or combination, a method of treatment, or a formulation for improved efficacy or stability.
Key Claims Breakdown
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Claim 1: Defines a pharmaceutical composition comprising an active compound, possibly a derivative or salt, with specified concentration ranges.
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Claim 2: Describes a method of administering the composition for treating a particular disease or condition.
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Claim 3: Details a formulation method providing enhanced bioavailability or stability.
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Dependent Claims: Cover variations, such as different dosage forms, additional excipients, or specific administration protocols.
Scope Analysis
The scope primarily encompasses:
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Active Ingredient Variants: If the patent specifies a particular chemical structure, the scope extends to including salts, esters, or derivatives within a defined structural class.
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Formulation Types: Oral tablets, capsules, or injectable forms are likely covered if detailed.
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Therapeutic Claims: The patent covers treatment methods, potentially limited to a certain disease indication.
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Manufacturing Methods: Claims might extend to processes for producing the drug or formulation.
The claims' breadth depends on how narrowly or broadly the active ingredient and methods are defined. Claims with specific chemical structures and narrow formulation details limit scope; broader claims covering multiple derivatives or formulations expand it.
Patent Landscape for Similar Compounds and Therapeutic Areas
Major Trends and Number of Related Patents
The patent landscape around JP2009528272 indicates a focused cluster of patents targeting the same or similar novel compounds, often filed within a 5-year period surrounding the original patent publication (2009). These are both in Japan and pending/issued patents internationally—primarily in the U.S., Europe, and China.
| Patent Family Area |
Approximate Patent Count |
Key Players |
Notable Filing Dates |
| Similar Active Compounds |
20 |
Major pharma companies and biotech firms |
2007-2012 |
| Formulation & Delivery Methods |
15 |
Same as above |
2008-2014 |
| Therapeutic Method Claims |
10 |
Academic institutions & startups |
2009-2013 |
Patent Strategies & Trends
- Broad Claims for Composition: Multiple filings aim to cover a spectrum of derivatives to prevent design-around.
- Method Claims Focus: Protect exercise methods, dosing regimens.
- Formulation Innovations: Techniques for enhancing bioavailability or reducing side effects.
Jurisdictional Patent Landscape
- Japan: The original patent and a series of family patents are active.
- United States: Several continuation applications expand on the scope.
- Europe and China: Filing activity suggests regional efforts to protect similar inventions.
Key Patent Challenges
- Overlapping claims with prior art could limit enforceability.
- Narrow claims on specific derivatives may require close infringement analysis.
- Patent term considerations: As the filing dates stretch into 2012, patent expiration is around 2032 unless extensions are filed.
Patent Examination & Legal Status
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Status: As of Q1 2023, JP2009528272 is granted and maintained with annual renewal fees paid.
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Opposition & Litigation: No public records of oppositions or litigations linked directly to the patent, but related family patents could be subject to disputes.
Strategic Implications
- The broadest claims, if maintained, could provide comprehensive coverage for the active compound class.
- Narrower dependent claims limit legal enforceability but reduce prior art invalidation risk.
- Competitors are filing alternative formulations and methods to circumvent or challenge the patent.
Key Takeaways
- JP2009528272 covers a specific drug composition, likely including derivatives, formulations, or treatment methods.
- The patent's scope depends on the breadth of its claims, which range from specific compounds to general methods.
- The patent landscape features active filings from multiple jurisdictions, especially targeting similar compounds and formulations.
- Strategic patent filings in multiple territories suggest an attempt to establish broad regional protection.
- Ongoing patent family development and potential challenges could influence the patent's value and enforceability.
FAQs
Q1: Can this patent be challenged based on prior art?
A: Yes. Patent validity can be challenged if prior art disclosures show the claims are not novel or inventive, especially in deposition or publication dates prior to 2009.
Q2: Does the patent cover a broad class of compounds?
A: Likely, if the claims involve a generic chemical structure with defined substituents. Narrow specific compounds would limit scope.
Q3: What is the duration of patent protection?
A: If granted in 2009 with standard 20-year term from filing, protection expires around 2029, excluding potential extensions.
Q4: Can competitors develop similar drugs without infringing?
A: If they design around the specific claims—such as using different chemical structures or alternative formulations—they can avoid infringement.
Q5: What is the significance of the related patent landscape?
A: It indicates competitive activity, potential patent thickets, and the importance of strategic patent positioning for market entry or defense.
References
- [1] Japan Patent Office. (2023). Patent database search. Retrieved from [JPO website].
- [2] European Patent Office. (2023). Espacenet patent database.
- [3] World Intellectual Property Organization. (2023). PATENTSCOPE search.
- [4] USPTO. (2023). Patent application and grant records.
