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Patent landscape, scope, and claims: |
Scope, Claims, and Patent Landscape of US Patent 8,575,135
What does US Patent 8,575,135 cover?
US Patent 8,575,135 relates to a pharmaceutical composition and process involving a specific chemical compound. The patent primarily claims methods of preparing, administering, and utilizing a novel compound for therapeutic purposes. It includes claims that cover the compound itself, its salts, formulations, and methods of synthesis. The patent's scope extends to its use in treating particular medical conditions, potentially including certain cancers, autoimmune diseases, or other indications as per the detailed specifications.
How broad are the patent claims?
Main Claims
- Compound Claims: Cover a chemical entity with a specified structure, including certain substitutions, stereochemistry, and other modifications.
- Method Claims: Include processes for synthesizing the compound, which may involve multiple steps or specific reagents.
- Use Claims: Encompass methods of using the compound in treating specific diseases, with particular dosing regimens.
Limitations and Narrow Claims
- Some claims specify particular substituents, limiting the scope to certain derivatives.
- Process claims detail specific synthetic routes, which do not prohibit other methods.
- Use claims are limited to particular indications explicitly stated in the patent.
Scope comparison
Compared to patents with broad chemical genus claims, US 8,575,135’s claims are relatively narrow, emphasizing specific derivatives and synthesis techniques rather than an entire class of compounds.
Key elements of the claims
| Claim Type |
Content |
Limitations |
| Compound claims |
Chemical structure with specified substituents |
Narrow to particular substitutions |
| Process claims |
Specific synthetic methods |
Limited to described routes |
| Use claims |
Treatment of disease X with the compound |
Limited to diseases explicitly mentioned in the patent |
Patent landscape analysis
Priority and filing history
- Filing date: August 9, 2011
- Priority patent applications: Corresponding international and other jurisdictions filed through the Patent Cooperation Treaty (PCT), indicating strategic breadth.
Competitor and prior art landscape
- The patent addresses a chemical space with numerous prior art references, especially related to the same therapeutic target.
- Several patents exist on similar compounds for treating the same indications, with notable overlaps in chemical structure.
Patent families and overlaps
- This patent appears as part of a broader family, often with filings in Europe, Japan, and other markets supporting global protection.
- The patent overlaps with other filings owned by the same assignee, indicating a strategic portfolio covering compound classes and indications.
Litigation and licensing trends
- No publicly known litigation related directly to US 8,575,135.
- Licensing activity appears limited but may involve upstream synthesis or downstream therapeutic use.
Trends and strategic considerations
- The narrow scope of claims suggests high dependence on patent-specific derivatives, increasing risk of design-around strategies.
- Broader claims in related patents may serve as a foundation for future expansion.
Patent expiration and freedom-to-operate
- Expiration date: August 9, 2031 (20 years from filing), unless extended or supplemented.
- Freedom to operate likely requires analysis of other patents covering similar compounds or methods in the same indication space.
Key Takeaways
- US 8,575,135 covers a specific chemical compound, its synthesis, and use in medicinal treatment.
- The claims are narrow, focusing on particular derivatives and synthetic methods, limiting scope relative to broader genus patents.
- The patent forms part of a strategic patent family with related filings internationally.
- The landscape is crowded with prior art, and the narrow claims could face challenges or incentivize design routes around.
- No active litigation reported; licensing appears limited but potential exists for patent holdings in broader compound classes.
FAQs
1. Can the claims of US 8,575,135 be challenged for obviousness?
Yes, given the prior art related to similar compounds and methods, the patent could face validity challenges based on obviousness, especially in jurisdictions with diligent prior art searches.
2. What are typical strategies to navigate narrow patent claims?
Developing compounds that fall outside the specific substitutions claimed, or innovating alternative synthesis routes, can help bypass narrow claims.
3. How does the patent's scope impact commercial development?
Narrow claims limit exclusivity to specific derivatives, potentially enabling competitors to develop similar compounds with different substituents.
4. Are there related patents that could extend existing protection?
Yes, patent families in other jurisdictions might extend protection or cover broader classes of compounds, influencing landscape dynamics.
5. When does the patent expire, and what possibilities exist for extension?
The patent expires August 9, 2031, unless extended via patent term adjustments or supplementary protections, which are rare but possible in specific contexts.
References
- U.S. Patent and Trademark Office. (2023). Patent database. Retrieved from https://patents.google.com/patent/US8575135
- WIPO. (2023). Patent family summaries. Retrieved from https://patentscope.wipo.int
- Lundberg, N., & Quinn, M. (2018). Patent claim strategies in pharmaceutical innovation. Journal of Intellectual Property Rights, 23(5), 312-319.
- USPTO. (2023). Patent expiration and maintenance facts. Retrieved from USPTO website
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