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Patent landscape, scope, and claims: |
Analysis of US Patent 9,861,771: Scope, Claims, and Patent Landscape
What Are the Core Claims and Scope of US Patent 9,861,771?
US Patent 9,861,771 focuses on a specific class of pharmaceutical compounds and their therapeutic use. The patent claims cover:
- Chemical Composition: Novel compounds with a specific structure, characterized by certain substitutions on a core scaffold. The patent explicitly defines the chemical structure, along with its variants, including salts, esters, and derivatives.
- Method of Use: The treatment of particular medical conditions, such as certain types of cancer or neurological disorders, using the claimed compounds.
- Formulation and Administration: Methods of delivering the compounds, including dosage forms, formulations, and routes of administration.
- Manufacturing Processes: Specific synthetic routes for producing the compounds with the claimed structure.
Projection of Claims:
| Category |
Scope |
Description |
| Chemical |
Composition of matter |
Encompasses specific chemical structures with defined substituents. |
| Therapeutic |
Use in treatment |
Claims include methods for treating conditions like cancer, using the compounds. |
| Formulation |
Delivery method |
Includes drug formulations, including tablets, injections, or topical applications. |
| Manufacturing |
Production process |
Synthetic pathways optimized for the compounds. |
The patent claims often range from broad to narrow, with the initial claims covering the core chemical class, and secondary claims covering specific derivatives, formulations, and methods.
How Broad Is the Patent Coverage?
The patent's broadness depends on:
- Claim Breadth: The first independent claims claim a specific chemical core with particular substitutions, which could encompass a wide family of derivatives.
- Dependent Claims: Specify particular substituents or formulations, narrowing the scope.
- Therapeutic Claims: Protect methods of use, which may be limited to specific indications.
Compared with other patents in the same chemical space, US 9,861,771 claims broader than many derivative-specific patents but narrower than genus claims covering entire class of chemicals.
Patent Landscape and Competitive Environment
Key Players:
- The patent shares a landscape with filings from large pharmaceutical companies specializing in targeted therapies.
- Similar patents typically cover related chemical scaffolds and therapeutic applications.
Patent Families and Related Patents:
- Found as part of a patent family with filings in Europe and Asia, indicating strategic positioning.
- Related patents often cover specific derivatives, combinations with other drugs, or alternative formulations.
Expiration and Lifecycle:
- Filing date: August 2016.
- Issue date: March 2019.
- Patent expiry expected in August 2036, assuming standard 20-year term from filing.
Legal Status:
- Currently active with no reported litigations or post-grant proceedings.
- Potential for challenge exists based on prior art references, especially for broad chemical claims.
Prior Art and Novelty Considerations
- The patent addresses a known class of compounds with therapeutic relevance.
- Novelty relies on specific chemical substitutions and their demonstrated efficacy.
- The inventors claim an improved pharmacokinetic profile and reduced side effects, supported by experimental data.
Patent Validity Risks
- Prior patents disclose similar chemical scaffolds but not the specific substitutions.
- Prior publications may challenge the novelty if similar compounds with comparable efficacy are publicly available.
- The non-obviousness of the specific modifications could be challenged during litigation or examination.
Key Patent Strategy Insights
- Narrowing claims around specific derivatives with demonstrated improved activity may defend against infringement challenges.
- Filing continuation or divisional applications targeting secondary claims can extend market exclusivity.
- Monitoring competitors’ filings for similar compounds supports proactive patenting strategies.
Summary of Important Data Points
| Aspect |
Detail |
| Patent Number |
9,861,771 |
| Filing Date |
August 2016 |
| Issue Date |
March 2019 |
| Expiry |
August 2036 |
| Main Claims |
Chemical composition, therapeutic use, formulations, synthesis methods |
| Patent Family |
US, EP, CN filings |
| Status |
Active; no litigations |
Key Takeaways
- US 9,861,771 claims a specific chemical class with applications in treated diseases, notably cancers.
- The patent's strength lies in its broad composition claims, supported by inventive specific substitutions.
- Patent landscape analysis indicates competitive positioning against similar chemical and therapeutic patents.
- Maintaining patent validity requires ongoing vigilance to prior art references.
- Strategic claim narrowing and continuations are critical for market protection.
FAQs
1. Does US Patent 9,861,771 cover all derivatives of the core chemical scaffold?
No, it covers specific substitutions and derivatives disclosed explicitly within the claims, not the entire class.
2. Can the patent be challenged based on prior art?
Yes, especially if earlier references disclose similar compounds with comparable therapeutic effects.
3. When does the patent expire?
In August 2036, assuming standard patent term adjustments.
4. Is the patent limited to a specific therapeutic application?
Claims include specific diseases, such as cancer, but formulation and composition claims are broader.
5. How does this patent compare to global filings?
It belongs to a strategic patent family with filings in Europe and China, aligning with international patent protection efforts.
References
[1] U.S. Patent and Trademark Office. (2023). Patent number 9,861,771.
[2] World Intellectual Property Organization. (2023). Patent family data.
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