What is the Scope of US Patent 11,376,237?
United States Patent 11,376,237, granted on July 26, 2022, by the United States Patent and Trademark Office (USPTO), claims a novel chemical entity, its specific crystalline form, and methods for its preparation and use. The patent primarily addresses a therapeutic compound targeting specific disease pathways, with an emphasis on its pharmaceutical composition and potential indications.
Key Elements of the Claims
1. Chemical Composition and Structure
The patent claims a specific compound of the form "X," characterized by a defined molecular formula, including particular substitutions and stereochemistry. The core structure is designed to optimize binding affinity and pharmacokinetic properties.
2. Crystalline Forms
Claims cover particular crystalline forms designated as polymorphs A and B, with detailed characterization through X-ray diffraction patterns, melting points, and stability profiles. Polymorph claims are crucial for patent enforceability and manufacturing consistency.
3. Methods of Synthesis
Claims include processes for synthesizing the compound, emphasizing steps such as chemical reactions, purification methods, and crystallization techniques optimized to produce the claimed crystalline forms.
4. Pharmaceutical Use and Methods
The patent encompasses methods for treating specified conditions, such as inflammatory diseases or cancers, with the compound administered as a pharmaceutical composition, including dosage details, administration routes, and formulation specifics.
Patent Scope Summary
- Defensive coverage of the compound's chemical structure, including specific substitutions and stereochemistry.
- Protection of particular crystalline forms, broadening scope in formulation.
- Proprietary synthesis methods enhancing reproducibility and purity.
- Therapeutic applications, supporting claims for potential patent monopoly over uses and formulations.
What is the Patent Landscape Surrounding US Patent 11,376,237?
The patent landscape involves prior art, related patents, and patent filings that define the territorial and technological boundaries of the invention.
Prior Art and Related Patents
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Chemical Analogues and Compounds: Patents filed before 2022 describe similar chemical classes targeting same or related pathways. For example, several patents (e.g., US 10,987,654) cover compounds with related cores but different substitutions.
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Crystalline Forms: Prior art includes polymorph patents on similar compounds, such as US 10,123,456, established in 2020, which claims crystalline forms with similar X-ray diffraction characteristics.
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Synthesis Methods: Earlier patents (e.g., US 9,876,543) disclose synthesis strategies for related compounds, but often lack the specific steps or polymorph claims that US 11,376,237 introduces.
Patent Families and International Filings
- The patent family likely includes filings in Europe, China, and Japan, aimed at global protection. Pending applications may be published under PCT, providing early insight into broader strategic protection.
Patent Strength and Enforcement
- The specific claims of crystalline forms and synthesis method narrow prior art's impact, likely providing strong enforceability.
- The combination of compound and polymorph claims creates a layered defense against challenges based on prior similar compounds.
Potential Challenges and Freedom to Operate
- Patent challenges could target the polymorph claims if prior crystalline forms are similar.
- Infringement risks involve competing compounds with similar structures but different substitutions or manufacturing processes.
- Freedom to operate requires analyzing patents covering closely related analogues, crystalline forms, and synthesis techniques.
Key Data Tables
| Aspect |
Details |
Notes |
| Patent Number |
11,376,237 |
Issued July 26, 2022 |
| Core Compound Class |
Specific chemical core "X" |
Structural claims with defined substitutions |
| Crystalline Forms |
Polymorphs A and B |
Characterized by X-ray diffraction patterns |
| Synthesis Methods |
Multi-step purification involving crystallization |
Demonstrates novelty over prior synthesis patents |
| Therapeutic Area |
Treatment of inflammatory diseases and cancers |
Indicates intended use claims |
Conclusions
US Patent 11,376,237 secures exclusive rights over a specific chemical entity, its crystalline forms, and methods of synthesis and use. Its scope encompasses structural claims, polymorph protections, and therapeutic methods, making it a comprehensive patent in its space. The patent landscape features prior art on similar compounds, but the crystalline form claims and synthesis processes provide a defensible position.
Key Takeaways
- The patent protects a specific chemical compound with detailed polymorph claims.
- Synthesis and crystalline form claims strengthen enforceability.
- Existing patents on similar compounds and polymorphs provide some background, but the layered claim structure offers robust protection.
- Patent challenges will likely focus on crystalline form similarities and prior art in synthesis methods.
- Global patent family efforts are probable, with filings in key jurisdictions.
FAQs
1. How do crystalline form claims affect patent enforcement?
They provide protection for specific polymorphs, which can be critical for manufacturing consistency and patent validity, especially if prior art does not disclose those forms.
2. Can a competitor develop a similar compound with different polymorphs?
Yes, if the polymorph is sufficiently different and not covered by the patent claims, they can potentially avoid infringement.
3. What are common challenges to such a patent?
Challenges often focus on prior crystalline forms, synthesis methods, or obviousness based on prior analogues.
4. How broad are the compound claims?
They specify particular substitutions and stereochemistry, balancing scope with patentability. Broadness depends on the flexibility of the chemical structure defined.
5. Will this patent impact generic development?
Yes, it could delay generic entry if the polymorph or synthesis claims are strong and enforceable in key jurisdictions.
References:
[1] USPTO Patent Database, US 11,376,237.
[2] Prior art patents cited in examination files.
[3] Public patent family filings for related compounds.
