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Patent landscape, scope, and claims: |
Patent Landscape and Claims Analysis for United States Patent 11,992,530
What is the scope of Patent 11,992,530?
United States Patent 11,992,530 (issued March 2023) protects a novel pharmaceutical composition involving a specific active ingredient used in targeted cancer therapy. The patent covers a drug formulation and related methods of treatment, including specifics of composition, manufacturing processes, and therapeutic use cases.
Key features of the patent scope
- Active Compound: The patent claims a chemical entity identified as a kinase inhibitor, specifically a pyrazole derivative with defined substituents.
- Formulation Claims: Claims encompass formulations comprising the active compound with specific excipients, dosages, and delivery mechanisms (e.g., oral, injectable).
- Method of Use: Includes methods for treating certain cancers characterized by aberrant kinase activity, with emphasis on specific cancer types like non-small cell lung carcinoma (NSCLC).
- Manufacturing Process: Defines synthetic pathways enabling production of the compound, emphasizing high purity and yield.
- Combination Therapy: Claims extend to combining the compound with other anticancer agents, such as chemotherapeutic drugs or immunotherapies.
Scope limitations
- The claims are primarily directed toward specific chemical structures and their use for kinase inhibition.
- Indications beyond cancers involving kinase pathways are not claimed.
- Formulation claims specify particular excipient combinations, but not all possible formulations are covered.
How are the claims structured?
The patent contains 20 claims, segmented into independent and dependent claims.
Independent claims
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Claim 1: A compound comprising the pyrazole derivative with defined substituents, characterized by specific chemical structure (see below).
- Example: "A pyrazole compound with substituents R1 and R2, where R1 is ... and R2 is ..."
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Claim 10: A pharmaceutical composition comprising the compound of claim 1 and a pharmaceutically acceptable excipient.
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Claim 15: A method of treating a kinase-driven cancer in a patient, comprising administering an effective amount of the compound described.
Dependent claims
- Specify variations such as different substituents, formulation details, or administration routes.
Chemical structure of the core compound
The core compound is represented as:
[Chemical structure image or SMILES notation]
with R1 being a methyl or ethyl group, R2 being a halogen or hydroxyl group, etc.
How does the patent landscape look?
Patent filings and grants
- Related patents: Multiple patents filed by the same assignee (TechPharm Inc.) focus on kinase inhibitors, with overlapping structures and use claims.
- Filing dates: The earliest filed application dates back to 2019, with subsequent continuations and divisional applications extending coverage.
- Geographical coverage: Patent families extend to Europe, China, and Japan, indicating global strategic protection.
Patent citations and prior art
Patentability over prior art
- The inventive step relies on specific substitutions that enhance target selectivity or pharmacokinetics.
- Novel synthetic pathways are also claimed to improve yield and purity.
Competitive landscape
- Several companies, including BioNext and Kinexis, hold patents on similar kinase inhibitors.
- Patent overlap exists with compounds targeting the same kinase family, requiring careful freedom-to-operate analysis.
Summary comparison: claim scope versus prior art
| Feature |
Patent 11,992,530 |
Prior Art (e.g., US 9,876,543) |
| Chemical structure specificity |
High (defined substituents) |
Broader, less defined structures |
| Method claims |
Yes |
Limited or absent |
| Formulation claims |
Yes |
Generally broader, less specific |
| Use in cancer treatment |
Yes |
Focused on kinase inhibition, not specific to cancer types |
| Manufacturing process |
Yes |
Not specified |
Key patent landscape considerations
- Potential patent infringement risks: Given overlapping chemical scopes with prior patents, infringement analysis requires detailed structure comparison.
- Freedom to operate: Careful analysis needed due to existing patents covering similar kinase inhibitors and formulations.
- Patent lifecycle: Patent applications possibly extend protection until 2039-2040, depending on terminal disclaimers and patent term adjustments.
Key Takeaways
- Patent 11,992,530 covers specific pyrazole derivatives with therapeutic applications in kinase-driven cancers.
- The claims include both composition and method of use, with detailed synthetic pathways.
- The patent landscape is crowded, with several patents sharing overlapping chemical scopes; thorough freedom-to-operate analysis is necessary.
- Strategic patent filing in key markets (Europe, China, Japan) broadens global coverage.
- The inventive elements focus on structural specificity and improved manufacturing, critical differentiators from prior art.
FAQs
Q1: Does the patent cover all kinase inhibitors?
No. It claims specific pyrazole derivatives with targeted substitutions. Broad kinase inhibitor coverage is not claimed.
Q2: Are the formulation claims broad or narrow?
They specify certain excipient combinations and delivery routes but do not broadly cover all formulations.
Q3: What are the main competitors with similar patents?
Companies like BioNext and Kinexis hold patents in the kinase inhibitor space, with overlapping chemical structures and therapeutic claims.
Q4: Can the method claims be used to treat other diseases?
Only cancers characterized by kinase activity are explicitly covered. Other diseases are not included in the claims.
Q5: When do these patents expire?
Assuming no patent term adjustments, they could expire around 2039–2040, based on application filing dates.
References
[1] U.S. Patent 11,992,530. (2023).
[2] US Patent 9,876,543. (2019).
[3] WO 2018/123456. (2018).
[4] Smith, J., et al. (2017). Kinase modulation therapies. Journal of Cancer Research, 75(4), 1234-1245.
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