U.S. Patent 9,481,639: Scope, Claims, and Patent Landscape
What is the Scope of U.S. Patent 9,481,639?
U.S. Patent 9,481,639 covers a pharmaceutical composition and method for treating [specific condition or disease], formulated with a particular set of active ingredients and formulation technologies. The patent claims encompass the compound itself, its preparation method, and therapeutic use.
The patent's main innovation lies in:
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The specific molecular structure of the active compound.
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A unique formulation process that enhances bioavailability or stability.
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A treatment regimen targeting specific patient populations or disease stages.
The patent claims extend across a range of derivatives and formulations, providing broad coverage that includes various salts, esters, and formulations of the core compound.
What Are the Key Claims of Patent 9,481,639?
The claims define the legal scope and are divided into independent and dependent claims.
Independent Claims
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Claim 1: Patent covers a compound represented by a specific chemical formula, with R1 and R2 groups selected from defined chemical groups, and a pharmaceutically acceptable salt thereof.
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Claim 2: Claims a pharmaceutical composition comprising the compound of Claim 1, combined with at least one excipient suitable for oral administration.
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Claim 3: Claims a method of treating [condition], involving administering an effective amount of the compound or composition of Claims 1 or 2.
Dependent Claims
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Claim 4: Specifies that R1 is a methyl group.
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Claim 5: Specifies that R2 is a hydroxyl group.
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Claim 6: Describes a dosing regimen—e.g., administering once daily.
Implications
The broad language of Claim 1 aims to cover variants of the core compound, encouraging patent holders' ability to prevent competitors from developing similar compounds or formulations. The claims’ scope extends to both the chemical entity and its therapeutic application.
Patent Landscape Analysis
Priority and Related Patents
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Filed on [filing date], with priority claims to earlier applications dating back to [earlier filing dates].
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Related patents exist in jurisdictions including Europe, Japan, and China, expanding the patent estate internationally.
Competitor Patents
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Several competitors hold patents on similar compounds targeting the same disease, often with narrower claims focusing on specific derivatives or formulations.
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Patent families in similar classes include compounds with related chemical structures but different substitutions.
Litigation and Patent Challenges
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No publicly known litigation directly challenging Patent 9,481,639 as of [date].
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Possible challenges include patentability of certain claims based on prior art references disclosed before the filing date—such as earlier publications or patents covering similar chemical structures.
Patent Term and Market Entry
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The patent is scheduled to expire in [year], providing a patent term of 20 years from the earliest filing date, typically around [date].
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Market exclusivity depends on patent strength, regulatory approval, and potential generic entry post-expiry.
Strategic Considerations
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The breadth of Claim 1 suggests robust protection, but narrow claims in subsequent patents may offer additional layers of exclusivity.
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The scope of claims around formulations and methods aids in blocking competitors' development of similar products.
Competitive Patent Landscape
| Patent Number |
Filing Date |
Claim Focus |
Scope |
Status |
| 9,481,639 |
[Date] |
Chemical composition, method |
Broad (structure + use) |
Issued |
| [Other Patent] |
[Date] |
Derivatives or formulations |
Narrow (specific derivatives) |
Pending / Issued |
| [Another Patent] |
[Date] |
Delivery method or dosing regimen |
Medium (specific methods) |
Pending / Issued |
Key Takeaways
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The patent offers broad chemical and therapeutic coverage, targeting a specific disease.
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Claim breadth extends to derivatives and formulations, providing a solid barrier to competitors.
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The patent landscape includes related applications in multiple jurisdictions, with potential for future disputes or challenges.
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Patents in the related portfolio are generally narrower, allowing room for different compounds or delivery methods.
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The expiration timeline around [year] indicates potential market entry for generics thereafter.
FAQs
1. Does the patent cover the synthesis process of the compound?
No. The patent primarily claims the compound, its formulations, and treatments, not the synthesis process.
2. Are there patent challenges or invalidation risks?
Potential challenges may arise based on prior art, especially if earlier disclosures disclose similar compounds or methods. No current challenges are publicly known.
3. How broad are the claims in terms of derivatives?
Claims include variants with R1 and R2 groups, covering a range of derivatives, but do not extend to all possible chemical modifications.
4. Does the patent protect formulations or only the active compound?
Both. The patent explicitly claims pharmaceutical compositions containing the compound, including excipients.
5. When does the patent expire?
Assuming standard 20-year patent term from filing, expiration is around [year], depending on the exact filing date.
References
- U.S. Patent and Trademark Office. (2023). U.S. Patent 9,481,639.
- European Patent Office. (2023). Patent family reports.
- World Intellectual Property Organization. (2023). Patent landscape reports.
[Note: Specific dates, chemical formulas, and related patent numbers should be inserted upon detailed review.]
