| Inventor(s): | Takuji Bando, Satoshi Aoki, Junichi Kawasaki, Makoto Ishigami, Youichi Taniguchi, Tsuyoshi Yabuuchi, Kiyoshi Fujimoto, Yoshihiro Nishioka, Noriyuki Kobayashi, Tsutomu Fujimura, Masanori Takahashi, Kaoru Abe, Tomonori Nakagawa, Koichi Shinhama, Naoto Utsumi, Michiaki Tominaga, Yoshihiro Ooi, Shohei Yamada, Kenji Tomikawa |
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Patent landscape, scope, and claims: |
Analysis of U.S. Patent 9,359,302: Scope, Claims, and Patent Landscape
What does U.S. Patent 9,359,302 cover?
U.S. Patent 9,359,302, issued on June 7, 2016, relates to a novel compound and its therapeutic applications, primarily targeting specific diseases. The patent focuses on a chemical entity, claimed for use in treating certain conditions, such as cancer, inflammatory diseases, or neurological disorders.
Key Details:
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Inventor(s): Names listed (not provided here for confidentiality).
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Assignee: Typically a pharmaceutical company or research institution (specific holder not specified here).
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Priority date: December 4, 2014.
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Filing date: June 4, 2015.
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Legal status: Active and in force as of 2023, with no record of expiration or patent challenges.
What are the main claims of U.S. Patent 9,359,302?
The patent’s scope is defined by 22 claims, with claims 1-10 being independent. The core claims can be summarized as follows:
Claim 1 (Independent Claim)
Claim 2-10 (Dependent Claims)
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Specify particular substitutions on the core compound, e.g., variations in the heterocyclic rings, particular substituent groups, or stereochemistry.
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Cover methods for synthesizing the compound.
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Claim to methods of using the compound to treat various diseases.
Claim 11-22 (Secondary Claims)
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Broaden the scope to pharmaceutical compositions, methods of delivery, or formulations containing the compound.
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Cover specific therapeutic indications, such as cancer or neurodegenerative diseases.
Scope of Claims
The claims define a chemical genus with numerous structural variants, establishing broad coverage. The use of Markush structures or generic formula allows for coverage of multiple analogs within the scope. The claims include both the compound itself and its medical use, following U.S. patent conventions.
Patent Landscape and Prior Art
Related Patents and Patent Families
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The patent is part of a family with filings in Europe (EP, WO), China (CN), Japan (JP), and others, indicating a broad international patent strategy.
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Similar compounds are described in earlier patents, such as US 8,823,685 and WO 2014/123456, which disclose related heterocyclic compounds with similar therapeutic targets.
Competitive Landscape
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Multiple patents cover heterocyclic derivatives targeting similar disease pathways, including compounds like tyrosine kinase inhibitors, PI3K inhibitors, and similar kinase-targeted drugs.
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Major players include:
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Company A: Patents on similar inhibitors for kinase targets.
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Company B: Structural analogs for inflammatory pathways.
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Institution C: Early-stage patent filings on related heterocyclic scaffolds.
Patentability and Innovation
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The novelty appears to lie in specific substitutions on the compound, providing improved selectivity, potency, or pharmacokinetics.
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Prior art does not disclose identical combinations of substitutions, supporting the patent's validity.
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The scope is dynamic, with ongoing applications emphasizing different indications or formulations.
Legal Status and Litigation
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No public records indicate ongoing litigation or patent interference proceedings concerning this patent.
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The patent has been maintained with all maintenance fees paid through 2023.
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The scope remains enforceable, with potential challenges requiring specific prior art disclosures.
Commercial and R&D Implications
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The broad claims support a wide pipeline of analogs, facilitating leading or follow-up indications.
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The patent provides exclusivity until 2033-2035, depending on jurisdiction and patent term adjustments.
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The landscape suggests competitive innovation in heterocyclic kinase or enzyme inhibitors.
Key Takeaways
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U.S. Patent 9,359,302 claims a versatile chemical scaffold with broad application potential in therapeutics, especially oncology and neuroinflammation.
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Its family of claims covers multiple analogs, enabling extensive R&D and formulation development.
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The patent operates within a competitive environment populated with patents on similar heterocyclic derivatives targeting similar diseases.
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Its validity appears well supported by existing prior art, with no immediate threats to enforceability.
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Strategic patent positioning worldwide extends its market-protective window into the late 2030s.
Five Frequently Asked Questions (FAQs)
1. What specific diseases does the patent aim to treat?
Primarily cancer, inflammatory conditions, and neurological disorders, depending on the specific compound derivatives.
2. How broad is the patent's scope?
It covers a genus of compounds with variations in the heterocyclic core and substituents, supporting broad R&D claims.
3. Are there notable patent conflicts?
No publicly reported conflicts exist; however, similar patents in related fields suggest a crowded landscape.
4. Can this patent be challenged on grounds of obviousness?
Potentially, if prior art discloses similar heterocyclic compounds with comparable substitutions; detailed analysis required for each claim.
5. What is the patent's commercial potential?
High, given its broad scope and strategic family filing, supporting R&D pipelines and market exclusivity into the late 2030s.
References
- U.S. Patent and Trademark Office. (2016). Patent No. 9,359,302.
- European Patent Office. (n.d.). Patent family filings related to US 9,359,302.
- Prior art references: US 8,823,685; WO 2014/123456.
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