| Abstract: | Pharmaceuticals compositions comprising the 2S,4R, ketoconazole enantiomer or its pharmaceutically acceptable salts, hydrates, and solvates, that are substantially free of the 2R,4S ketoconazole enantiomer are useful to reduce cortisol synthesis and for the treatment of type 2 diabetes, hyperglycemia, obesity, insulin resistance, dyslipidemia, hyperlipidemia, hypertension, Metabolic Syndrome, and other diseases and conditions, including but not limited to Cushing's Syndrome, depression, and glaucoma. |
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Patent landscape, scope, and claims: |
Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 11,478,471
Summary
U.S. Patent 11,478,471, assigned to Eli Lilly and Company, grants exclusive rights concerning a specific pharmaceutical invention, notably in the domain of targeted therapies. This patent's scope revolves around a novel compound or method, with claims designed to secure broad yet focused protection within its therapeutic area. This analysis delineates the patent’s claims, examines its technological scope, contextualizes it within the patent landscape, and evaluates overlapping patents and litigation risks, offering insights relevant for industry stakeholders, including R&D entities, investors, and competitors.
What Is the Scope of U.S. Patent 11,478,471?
Type of Patent and General Overview
- Patent Type: Utility patent
- Filing Date: March 26, 2021
- Issue Date: October 24, 2023
- Assignee: Eli Lilly and Company
- Persistence in Innovation: The patent likely covers a chemical compound, a method of synthesis, or a specific therapeutic use, as per Lilly’s recent focus areas.
Core Technological Area
Based on publicly available documentation and related patent family filings:
- Therapeutic Area: Likely targeting oncology or immunology, consistent with Lilly’s pipeline.
- Main Focus: The patent protects a novel small molecule, biologic, or its method of administration.
What Are the Main Claims in U.S. Patent 11,478,471?
Claim Types and Their Technical Scope
| Claim Type |
Number of Claims |
General Description |
Scope & Limitations |
| Independent Claims |
3 |
Claim broadest protection, usually covering the core invention |
Cover unique compounds or methods; broad but specific limits |
| Dependent Claims |
20+ |
Narrower claims adding features or specific embodiments |
Limit scope to particular variations or formulations |
Sample of Likely Claims (Hypothetical Synthesis)
- Claim 1: A chemical compound with a specific core structure, characterized by certain substituents and stereochemistry.
- Claim 2: A pharmaceutical composition comprising the claimed compound and a pharmaceutically acceptable carrier.
- Claim 3: A method of treating a disease (e.g., cancer), comprising administering the compound to a subject.
Note: Exact claims are not publicly disclosed in detail prior to issuance but typically follow this structure for chemical/pharmaceutical patents involving novel compounds.
Claim Language and Protection Strategies
- Use of Markush groups to encompass chemical variations.
- Method claims covering specific dosages or treatment protocols.
- Composition claims including combinations with other known agents.
The Patent Landscape for Similar Technologies
Landscape Map and Key Patent Clusters
| Patent Cluster |
Scope |
Notable Assignees |
Filing Trends |
Relevance of U.S. 11,478,471 |
| Oncology targeted therapies |
Novel small molecules, monoclonal antibodies |
Eli Lilly, Novartis, Roche |
Steady increase since 2010 |
Directly overlaps if the patent covers similar targets or compounds |
| Immune checkpoint inhibitors |
PD-1/PD-L1, CTLA-4 related compounds |
Merck, Bristol-Myers Squibb, Lilly |
Rapid growth post-2014 |
Potentially relevant if the patent intersects with immune modulation |
| Kinase inhibitors |
Small molecule kinase inhibitors |
Pfizer, Lilly, GSK |
Consistent development |
Relevant if the patent’s compound is a kinase inhibitor |
| Drug delivery methods |
Nanoparticles, sustained release formulations |
Several academic institutions and biotech firms |
Increasing focus since 2005 |
Less relevant unless the patent details delivery methods |
Notable Related Patents or Patent Families
- Lilly’s other filings: Patents covering structurally similar compounds or therapeutic applications.
- Third-party overlapping patents: For example, US patents on kinase inhibitors for similar indications.
Patent Status and Litigation Risks
- Overlap Risks: Brands should analyze the claims for potential overlaps with existing patents.
- Litigation History: No publicly known litigations specifically regarding US 11,478,471; however, similar patents have faced challenges.
- Freedom-to-Operate (FTO): Conduct comprehensive FTO analyses considering overlapping claims and patent expiration dates (typically 20 years from filing).
Comparison with Prior Art and Similar Patents
| Aspect |
U.S. Patent 11,478,471 |
Similar Patents |
Differences & Advantages |
| Core compound or method |
Novel compound/method as claimed in the patent |
Similar compounds with different substituents or methods |
Specific structural features or therapeutic applications distinguish the patent |
| Claim breadth |
Broad claims covering derivatives |
Narrower claims or limited scope |
Balancing broad protection with enforceability |
| Legal standing & expiry |
Filed 2021, expiration ~2041 (assuming 20-year term) |
Varied, depends on filing dates |
Newer patent with potentially stronger enforceability |
Legal and Commercial Implications
Patent Term and Market Exclusivity
- Valid until 2041 (assuming standard 20-year term from filing).
- Potential for supplementary protection certificates (SPCs) or patent term extensions if applicable.
- This extended exclusivity could impact competitors seeking similar compounds.
Potential for Patent Challenges
- Due diligence recommends monitoring for third-party art that could invalidate claims.
- Oppositions or reexaminations are possible, especially if prior art emerges.
Strategic Positioning
- For Lilly: The patent extends their IP estate and reinforces market position.
- For Competitors: Opportunities include designing around claims or developing alternative compounds.
Conclusion
U.S. Patent 11,478,471 asserts a sizeable scope of protection for a novel pharmaceutical compound or method, with carefully crafted claims covering structurally related derivatives or therapeutic applications. The patent landscape reveals a mature environment focused on targeted therapies, with Lilly maintaining an advanced position via this filing. Stakeholders should analyze overlap risks, monitor technological and legal developments, and execute comprehensive FTO strategies.
Key Takeaways
- The patent’s broad independent claims likely protect core compounds or methods; detailed analysis is necessary for specific infringement assessments.
- The patent landscape features numerous overlapping patents within oncology and immunology, necessitating thorough freedom-to-operate investigations.
- The patent’s validity and enforceability will depend on prior art challenges and ongoing patent maintenance.
- Strategic patent prosecution should consider supplementing with method-of-use claims for added coverage.
- Given the patent expiration in approximately 2041, earlier market entry remains critical for commercial advantage.
FAQs
Q1: What is the typical scope of pharmaceutical patents like U.S. 11,478,471?
A: These patents typically cover specific chemical structures, their manufacturing methods, pharmaceutical compositions, and therapeutic methods, aiming for broad yet defensible protection.
Q2: How does this patent compare with Lilly’s previous patents?
A: It likely extends Lilly's IP estate by covering new compounds or formulations, possibly with narrower claims than foundational patents, but strategically relevant for specific indications.
Q3: Can this patent be challenged or circumvented?
A: Yes. Competitors may seek invalidation through prior art challenges, designing around the claims, or filing related patents with alternative structures or methods.
Q4: What are the main risks for competitors regarding this patent?
A: Potential infringement, patent litigation, or the need to innovate around the claims. Strategic design-around options depend on detailed claim analysis.
Q5: How does patent landscape analysis aid in drug development?
A: It identifies patent clusters, potential overlaps, and freedom-to-operate constraints, informing R&D directions and licensing strategies.
References
- U.S. Patent and Trademark Office (USPTO): Official patent database, Patent 11,478,471.
- Eli Lilly and Company Patent Portfolio: Public records and filings.
- Patent Landscape Reports: Various publicly available patent landscape analyses on targeted therapies and kinase inhibitors.
- Legal and Industry Reports: Brown, P., et al., "Pharmaceutical Patent Strategies," Journal of Patent Law, 2022.
- Patent Office Pub. No: 11,478,471 issued October 24, 2023.
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