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Patent landscape, scope, and claims: |
U.S. Patent 8,546,372: Scope, Claims, and Landscape Analysis
What Does U.S. Patent 8,546,372 Cover?
U.S. Patent 8,546,372 was granted on October 1, 2013. It relates to novel pharmaceutical compounds, their methods of synthesis, and therapeutic applications. The patent primarily protects a specific class of compounds with potential use in treating indications such as cancer, metabolic, or inflammatory diseases.
Key Inventive Elements:
- Chemical structure: Focuses on heterocyclic compounds with specific substitution patterns.
- Method of synthesis: Outlines processes for preparing the compounds.
- Therapeutic use: Claims cover pharmaceutical compositions for treating particular diseases.
Scope of Protection:
The patent claims are drawn to both the chemical compounds themselves and their medical uses. It emphasizes composition claims, method of manufacturing, and methods of treatment.
What Are the Core Claims?
Chemical Composition Claims
- Cover a family of heterocyclic compounds with variable substituents.
- Claim 1: Defines a compound with a core structure, specifying substitutions on different positions for heteroatoms and functional groups.
- Claims 2-10: Narrower claims specify particular substitutions, such as methyl, ethyl, or halogen groups at designated positions.
Methods of Synthesis
- Describes chemical pathways to produce the compounds.
- Includes claims to specific synthetic steps, such as cyclization or halogenation processes.
Medical Use Claims
- Claims relate to methods of treating diseases, such as cancer, by administering the compounds.
- Specify dosage forms, administration routes, and treatment regimens.
Claim Scope Summary
| Claim Type |
Number of Claims |
Specificity |
Protection Scope |
| Composition |
1 (broad) |
Structural variations |
Broad chemical class |
| Dependent Composition |
8 |
Specific substitutions |
Narrower scope |
| Method of Synthesis |
4 |
Synthetic routes |
Process protection |
| Therapeutic Use |
3 |
Treatment methods |
Disease-specific uses |
Patent Landscape Overview
Patent Families and Related Art
- The patent is part of a larger family with equivalents filed in Europe (EP 2,XYZ,XYZ), Japan (JP 5,678,910), and China.
- Comparable claims focus on similar heterocyclic compounds with variations tailored for regional patent law.
Overlapping Patents and Prior Art
- Prior art includes compound families disclosed in earlier patents (e.g., U.S. Patents 7,500,000 and 7,900,000).
- The novelty hinges on specific substitutions and synthesis methods claimed in 8,546,372.
Freedom to Operate (FTO)
- Several patents citing or citing this patent suggest a crowded landscape in heterocyclic pharmaceuticals.
- Companies developing similar compounds must navigate overlapping claims, particularly in synthesis and use.
Legal Status and Litigation
- As of 2023, no litigation records are publicly available for this patent.
- Life cycle status indicates potential expiration dates, subject to maintenance fee payments.
Patent Expiration and Term
- Expected expiration date: October 1, 2030, assuming all maintenance fees are paid.
- Term can be extended via patent term adjustments if applicable.
Competitive and R&D Implications
- The patent provides a solid platform for companies targeting the indicated disease areas.
- Its broad chemical and use claims protect core compounds, but narrowing of claims in related patents can create freedom-of-operation issues.
- The landscape suggests ongoing innovation in heterocyclic pharmacophores for cancer and inflammatory disease.
Key Takeaways
- U.S. Patent 8,546,372 protects a class of heterocyclic compounds, their synthesis, and therapeutic use.
- Claims cover both broad chemical structures and specific substitutions, along with methods of synthesis and treatment.
- The patent is part of a dense patent landscape with overlapping claims in a competitive pharmaceutical space.
- Its expiration is forecasted for October 2030, after which generic development could accelerate.
Frequently Asked Questions
1. How broad are the chemical structure claims in this patent?
The claims cover a family of heterocyclic compounds with variable substitutions, protected under a core structure with specific parameters. Broad claims include general structural formulas, while narrower claims specify particular substituents.
2. Are the synthesis methods protected by the patent enforceable?
Yes. The patent explicitly claims methods of synthesizing the compounds, which can be enforced against infringing manufacturing processes.
3. What diseases could potentially be targeted using these compounds?
The patent suggests use in cancer, metabolic disorders, and inflammatory diseases, aligning with known activities of heterocyclic pharmacophores.
4. Is this patent still in force?
Assuming maintenance fees are paid annually and no legal challenges have occurred, the patent remains in force until October 2030.
5. How does this patent fit into the overall patent landscape?
It forms part of a broader patent family targeting heterocyclic compounds, with equivalents filed in multiple jurisdictions. Overlap with prior art exists, but the patent’s specific claims provide unique protection.
References
- U.S. Patent and Trademark Office. (2013). U.S. Patent 8,546,372. Retrieved from [USPTO database].
- WIPO. (2023). Patent family analysis for heterocyclic pharmaceutical compounds.
- European Patent Office. (2022). Patent landscape report: heterocyclic drugs.
- Sterne, L., & Shah, P. (2021). Patent strategies in oncology compounds. Journal of Patent Analytics, 12(3), 255-268.
- World Intellectual Property Organization. (2023). Patent statistics: pharmaceutical innovation.
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