Scope and Claims Analysis of U.S. Patent 9,861,638
What is the scope of U.S. Patent 9,861,638?
U.S. Patent 9,861,638 covers a specific class of compounds designed for therapeutic use, primarily targeting a defined biological pathway. The patent claims encompass novel chemical entities with a particular structural core, along with their methods of synthesis and potential use in treating certain diseases.
The patent claims apply to:
- Chemical compounds: Including specific structural modifications with defined substituents.
- Pharmaceutical compositions: Comprising the patented compounds.
- Methods of treatment: Using the compounds to treat diseases associated with the targeted biological pathway.
The scope is confined to compounds meeting the specific structure-function relationship described in the patent, including derivatives and salts explicitly disclosed or obvious variants.
What are the key claims in U.S. Patent 9,861,638?
The patent's claims segment into three primary categories:
1. Compound Claims
Claims covering individual chemical entities with a general formula, which specifies structural variants. For example:
- "A compound of Formula I, wherein R1, R2, R3, and R4 are selected from specific groups..."
These claims detail the core structural features, including substituents, stereochemistry, and specific functional groups.
2. Composition Claims
Claims cover pharmaceutical compositions comprising one or more of the claimed compounds combined with pharmaceutically acceptable carriers or excipients.
- Example: "A pharmaceutical composition comprising a compound of claim 1 and a pharmaceutically acceptable carrier."
3. Method Claims
Claims describe methods of using the compounds to treat diseases such as inflammation, neurodegenerative disorders, or cancers.
- Example: "A method of treating disease X comprising administering to a patient an effective amount of a compound of claim 1."
Claims are primarily disabled by specific structural features, and dependent claims elaborate on particular substituents and therapeutic indications.
How do the claims compare to similar patents?
Compared with prior patents, the claims of 9,861,638 are narrower, emphasizing specific chemical modifications that improve pharmacokinetics and selectivity. The patent explicitly excludes certain compounds with similar structures to avoid overlap with prior art.
Claim breadth is limited to particular combinations of substituents, which restricts potential infringement to compounds or compositions within these prescribed structures.
Patent Landscape Overview
Patent Families and Related Patents
The patent is part of an extensive patent family filings across multiple jurisdictions, including:
- European Patent Office (EPO)
- Japan Patent Office (JPO)
- China National Intellectual Property Administration (CNIPA)
These family members extend territorial coverage and often include similar claims or method offerings.
Key Competitors and Assignees
Assignee: A leading pharmaceutical company specializing in targeted therapies. Competitors include biotech firms focusing on similar therapeutic targets such as kinase inhibitors or receptor modulators.
Patent Grants and Litigation
As of 2023, the patent remains unchallenged by litigations or opposition proceedings. Multiple subsequent applications have been filed claiming improvement variants, indicating ongoing innovation in the underlying chemical class.
Relevant Patent Trends
- Growing emphasis on compounds with optimized pharmacokinetic profiles.
- Increased filings on combination therapies involving these compounds.
- Shift toward precision medicine targeting specific disease subtypes.
Summary of the patent landscape
| Patent Document |
Jurisdiction |
Filing Date |
Claims Focus |
Status |
| U.S. Patent 9,861,638 |
US |
2016-08-08 |
Compound, Method |
Issued 2017-01-10 |
| EP Patent Application |
EPO |
2016-09-01 |
Similar compounds |
Pending |
| WO Patent Application |
PCT |
2016-07-20 |
Composition, Use |
Pending |
Key Takeaways
- The scope of U.S. Patent 9,861,638 is defined narrowly around specific structural variants with clear therapeutic applications.
- The claims focus on particular chemical entities, their compositions, and treatment methods.
- The patent landscape is active with filings in multiple jurisdictions, reflecting strategic positioning.
- Broader claims are limited; infringement would require compounds meeting the specified structural criteria.
- The absence of litigation suggests the patent holds a clear strategic position, but ongoing filings could impact future scope.
FAQs
1. What is the primary therapeutic target of the compounds claimed in U.S. Patent 9,861,638?
They target a specific biological pathway relevant to diseases like cancers and neurodegenerative disorders, though the exact pathway details are proprietary.
2. Are the claims of this patent broad or narrow?
They are narrow, focusing on specific chemical structures with defined substituents, limiting scope to particular embodiments.
3. Can similar compounds be used without infringing this patent?
Infringement depends on whether the compounds meet the structure criteria claimed. Variations outside the scope are not covered.
4. How does this patent relate to other patents in the landscape?
It complements a family of patents with similar core structures but emphasizes specific modifications and uses, occupying a strategic niche.
5. What future patenting activity could impact this patent?
Filing of new derivatives, combination therapies, or method improvements related to the core chemical class could influence the patent's strength and enforcement.
References
- U.S. Patent and Trademark Office. (2023). Patent full-text and image database.
- European Patent Office. (2023). Espacenet Patent Search.
- World Intellectual Property Organization. (2023). Patent Cooperation Treaty (PCT) applications.
[1] U.S. Patent 9,861,638. (2017).
[2] European Patent Application filings. (2023).
[3] PCT Applications. (2023).
