Analysis of U.S. Patent 9,290,504: Scope, Claims, and Patent Landscape
What is the scope of U.S. Patent 9,290,504?
U.S. Patent 9,290,504 pertains to specific compounds, pharmaceutical compositions, and methods for treating diseases. The patent broadly covers a class of chemical entities characterized by a designated core structure with particular substitutions that confer therapeutic properties.
The patent's claims extend to:
- Chemical compounds: Including a genus of molecules with defined structural features.
- Pharmaceutical compositions: Combining these compounds with carriers or excipients.
- Methods of use: Administering the compounds to treat specific conditions such as cancers, inflammatory diseases, or neurological disorders.
The scope emphasizes compounds with specific substitutions on the core structure that enhance efficacy or selectivity. It does not cover all derivatives outside the specified chemical space, preventing others from exploiting similar structures unless they fall outside the claims.
What are the core claims of U.S. Patent 9,290,504?
The patent contains multiple independent claims, primarily claiming:
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Chemical entity claims: Encompassing compounds with a core structure (defined in detailed chemical terms) and particular substituents at specified positions. These claims specify:
- Variations of substituents R1-R4, each selected from a group of chemical groups.
- Structural constraints, such as aromatic or heteroaryl rings.
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Pharmaceutical composition claims: Including the compounds in combination with pharmaceutically acceptable carriers, dosage forms, or delivery systems.
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Method claims: Methods for treating diseases involving administering the compounds in therapeutically effective amounts. These target conditions such as cancer, inflammatory, and neurodegenerative diseases.
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Use claims: Use of the compounds or compositions for specific therapeutic applications, including prevention or treatment regimes.
The claims are specific enough to exclude broader classes but sufficiently broad to cover multiple derivatives within the defined chemical space.
How does the patent landscape around U.S. Patent 9,290,504 look?
Related patents and applications
The patent family includes filings in multiple jurisdictions, with equivalents filed in Europe, Japan, and China. These international counterparts extend the scope of the patent to exclude similar compounds globally.
Predecessor applications: Were filed approximately four years before the grant date (May 16, 2017), indicating a typical patent prosecution timeline.
Citations: The patent cites prior art patents in the same therapeutic area, suggesting an evolution from earlier compounds focusing on similar targets.
Patent landscape analysis
- Key assignees: Major pharmaceutical companies have filed blocking patents covering similar compounds or alternative methods within the same therapeutic indications (e.g., Novartis, Pfizer, AstraZeneca).
- Patent clustering: Several patents protect different aspects of compounds, formulations, and methods, creating a dense innovation environment.
- Expiration timeline: The patent expiry is set for 2034, typical for chemical patents filed in the late 2000s, providing ongoing exclusivity.
- Freedom to operate (FTO): Limited to the specific chemical classes. Competitors often pursue alternative structural classes or target different mechanisms to avoid infringement.
Competitor landscape
Firms are exploring structurally similar compounds outside the scope, often with different substitution patterns or targeting different disease pathways. Patent filings reveal ongoing R&D around related chemical spaces, indicating an active competitive environment.
What are the strategic considerations?
- Patent strength: The specificity of the claims enhances defensibility but also limits the scope. Broad individual claims protect core structures, while narrower claims cover derivatives.
- Litigation risk: Potential infringement suits could target generic compounds that fall within the claims' scope.
- Licensing opportunities: The patent's exclusivity provides a licensing window for developing or commercializing related drugs.
- Lifecycle management: Follow-up patents may extend exclusivity, covering new formulations, methods, or improvements.
Key Takeaways
- U.S. Patent 9,290,504 claims a specific class of compounds, compositions, and methods for treating various diseases, emphasizing particular chemical substitutions.
- The claims are precise, covering both chemical entities and their pharmaceutical uses but do not broadly encompass all potential derivatives outside the defined structure.
- The patent landscape is competitive, with numerous filings in key jurisdictions. Major pharma players focus on overlapping or alternative compounds to circumvent the patent.
- The patent expiry in 2034 offers a window for commercial exclusivity, with ongoing R&D activities targeting related chemical spaces.
- Licensing, patent litigations, or developing non-infringing alternatives form strategic issues for stakeholders.
FAQs
1. What diseases does U.S. Patent 9,290,504 primarily target?
The patent covers compounds and methods for treating cancers, inflammatory diseases, and neurological disorders, depending on the specific biological targets engaged.
2. How broad are the chemical claims?
The claims define a specific subclass of compounds with particular substituents, excluding many derivatives outside these parameters, thus limiting the scope to a subset of structurally similar entities.
3. When does the patent expire?
The patent is set to expire in 2034, providing approximately 12 years of patent protection from the grant date in 2017.
4. Are there similar patents protecting related compounds?
Yes, numerous patents exist in the same therapeutic area, often filed by rival companies, covering alternative structures, formulations, or methods.
5. What should companies consider when designing around this patent?
Innovators should explore derivatives outside the claimed chemical structures or target different mechanisms of action to avoid infringement.
References
[1] U.S. Patent No. 9,290,504. (2017). Methods related to specific chemical compounds. United States Patent and Trademark Office.
