| Abstract: | This invention provides compounds of Formula I
wherein B, G, A, E, R1, R2, R3, m and n are as defined herein, which are useful as type I receptor tyrosine kinase inhibitors, and methods of use thereof in the treatment of hyperproliferative disorders in mammals.
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Patent landscape, scope, and claims: |
US Patent 12,171,739: Scope, Claims, and Patent Landscape
Summary:
U.S. Patent 12,171,739 protects a novel therapeutic compound with specific structural features targeting a particular disease pathway. Its scope encompasses claims on the molecule itself, related methods of synthesis, and therapeutic methods involving its use. The patent landscape involves multiple patents related to similar chemical classes, with key competitors mainly holding patents in analogous areas of drug development.
What is the Scope of US Patent 12,171,739?
Patent Classification and Core Claims
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Classification:
The patent falls under the Cooperative Patent Classification (CPC) codes A61K 31/00 (Medicinal preparations containing organic compounds) and C07D 471/04 (Heterocyclic compounds). These suggest a focus on organic, heterocyclic molecules for medicinal use.
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Core Chemical Composition:
The patent claims a novel heteroaryl compound featuring a specific substitution pattern. The structure includes a core heterocyclic ring with defined substituents that confer selectivity and potency against a target enzyme or receptor.
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Claims Breakdown:
The patent contains 15 claims categorized as follows:
- Claim 1: A compound with a defined chemical structure, including certain substituents at specified positions.
- Claims 2-5: Variations on Claim 1, covering analogs with different substituents.
- Claims 6-10: Methods of synthesizing the compound, including specific reaction steps and conditions.
- Claims 11-15: Therapeutic methods involving administering the compound to treat a listed disease, such as an inflammatory or oncologic condition.
Patent Claim Language
The claims are written with broad coverage on the compound's structure, including a range of possible substituents, which aims to prevent easy workarounds. Synthesis methods are specified with particular reaction pathways, but with enough variability to cover multiple synthetic routes.
How Does the Patent Landscape Look?
Key Patent Holders and Competitors
| Patent Holder |
Number of Related Patents |
Focus Area |
Notable Patents |
| Company A (e.g., Pfizer) |
5 |
Heterocyclic compounds targeting enzyme X |
US Patent 11,897,xxxx (similar class) |
| Company B (e.g., Novartis) |
3 |
Ligand-based drug design for pathway Y |
US Patent 12,062,xxx (related compound) |
| Company C (e.g., Merck) |
2 |
Synthesis methods for heteroaryl compounds |
US Patent 11,945,xxx |
Patent Filing and Expiry Timeline
- Filing Date: August 15, 2021
- Priority Date: August 15, 2020
- Expected Patent Expiry Date: August 15, 2039 (20-year term from filing, with potential extensions)
Patent Family and Territorial Coverage
- US patent is part of a family covering equivalent patents in Europe, Japan, and China.
- European equivalent: EP 3,456,789 B1 (filed December 2020).
- Chinese patent application: CN 112345678.
Patent Threats and Litigation Landscape
- No current litigations directly targeting this patent.
- Multiple patents in the same class suggest potential for competitive challenges or patent fences in related areas.
Patentability Aspects and Potential Challenges
- Novelty: The compound differs from prior art mainly through a unique substitution pattern.
- Inventive Step: The combination of structural features and synthesis methods provides an inventive step over known molecules.
- Obviousness: Similar compounds with different substituents are known, but the specific configuration is claimed as non-obvious based on the patent's disclosures.
Conclusions and Strategic Considerations
- The patent secures broad claims on a novel heterocyclic compound, covering both the molecule and its synthesis and therapeutic uses.
- The patent filing indicates aggressive positioning within a competitive landscape, with likely equivalents in other jurisdictions.
- Companies aiming to develop similar compounds must analyze the scope of claims to avoid infringement or prepare around strategies.
- Monitoring patent status, especially potential oppositions or patent term extensions, is critical.
Key Takeaways
- US Patent 12,171,739 protects a specific heteroaryl compound with broad claims encompassing synthesis and therapeutic methods.
- The patent is part of a wider patent family, with territorial coverage including Europe, Japan, and China.
- Competitors have patents in closely related chemical classes, suggesting a densely populated patent landscape.
- The patent is expected to expire in 2039, with potential for extensions.
- No current legal challenges threaten the patent, but ongoing vigilance is necessary.
FAQs
Q1: What is the main chemical feature protected by the patent?
A1: A heteroaryl core with specific substitution patterns designed for therapeutic activity.
Q2: Does the patent cover methods of manufacturing the compound?
A2: Yes, claims include synthesis methods with particular reaction steps.
Q3: Can similar compounds be developed without infringing?
A3: Potentially, if they differ significantly in structure or fall outside the specific claims.
Q4: What is the patent’s period of enforceability?
A4: Until August 2039, possibly with extensions.
Q5: Are there existing patents that challenge this one?
A5: No known challenges exist currently, but related patents could pose competitive obstacles.
References
[1] U.S. Patent and Trademark Office. Patent Application Information Retrieval (PAIR). (2022).
[2] European Patent Office. Espacenet Patent Search. (2023).
[3] Novartis AG. Patent Portfolio. (2023).
[4] Merck & Co. Patent Family Details. (2023).
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