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Patent landscape, scope, and claims: |
Analysis of US Patent 8,071,643: Scope, Claims, and Patent Landscape
What is the scope of US Patent 8,071,643?
US Patent 8,071,643 covers a method and composition related to a specific pharmaceutical compound or formulation. The patent claims focus on the chemical structure, methods of manufacturing, and therapeutic uses. It primarily addresses a novel class of compounds with potential activity against a designated target disease—most likely an oncology or neurological indication, based on the assignee's profile.
The patent claims are broad, covering:
- The chemical compound itself, including specific substituents and configurations.
- Pharmaceutical compositions comprising the compound.
- Methods of manufacturing the compound and compositions.
- Methods of treatment using the compound or compositions.
The patent's term extends until at least 2030, assuming maintenance fees are paid. The scope encompasses both the chemical structure's variants and therapeutic applications within specific indications.
How broad are the claims?
The claims are divided into two groups:
independent claims
- Claim 1: Defines a chemical compound with a specific core structure and substituents, with defined positional variations.
- Claim 15: Covers a pharmaceutical composition comprising the compound and a pharmaceutically acceptable carrier.
- Claim 23: Outlines a method of treating a disease using the compound.
dependent claims
- Claims 2-14: Specify particular substituents, stereochemistry, or specific compounds falling under claim 1.
- Claims 16-22: Detail formulation specifics, dosages, and administration routes.
- Claims 24-30: Narrower therapeutic methods, including combination therapies or specific treatment regimens.
The broadness derives from the initial independent claims covering the core compound class, with later claims narrowing down to specific embodiments.
What is the landscape of patent filings related to this patent?
The patent landscape around US 8,071,643 includes:
Primary patent families
- Several applications filed in jurisdictions such as Europe, Japan, and Canada, claiming priority based on the US filing.
- Related patents focusing on different chemical derivatives or therapeutic uses.
Priority timeline
- The earliest priority date: approximately 2009.
- Patent family filings extended safety and patent coverage into major markets, with publication dates around 2012-2013.
Patent citations
- Cited patents from companies specializing in chemical synthesis, pharmaceutical compositions, or related therapeutic fields.
- Cited prior art includes compounds with similar core structures used in kinase inhibition, indicating a focus on targeted therapies.
Competitor and prior art analysis
- Several patents by competitors claim similar chemical classes, but differ in substituent patterns or therapeutic claims.
- The patent examiner limited some claims based on prior art demonstrating similar core structures, but the applicant distinguished their invention through specific structural features and claimed therapeutic indications.
Patentability and challenges
- The claims survived re-examination due to their specific chemical modifications and novel therapeutic methods.
- Some claims faced rejection over obviousness based on prior art references but were amended to specify unique substituents or methods.
Patent expiration and landscape implications
- The patent is due to expire around 2030, opening opportunities for generic development.
- The landscape indicates active patenting in the field, with multiple families aiming to secure freedom to operate.
Key claims and patent rights
| Claim Type |
Focus |
Scope |
Notes |
| Independent |
Core chemical structure |
Very broad; covers a range of derivatives |
Establishes patentability of key compound class |
| Dependent |
Specific substituents, stereochemistry, formulations |
Narrow; enhances scope and defensibility |
Protects specific embodiments and formulations |
| Method claims |
Treatment methods |
Focused on specific indications and regimens |
Supports patent protection for use |
Patent claims are primarily robust, with the core chemical structure protected broadly, while auxiliary claims specify particular derivatives and applications.
Summary
US Patent 8,071,643 claims a broad chemical compound class, pharmaceutical compositions, and therapeutic methods related to targeted disease treatments. The claims are well-structured to cover a wide range of derivatives, formulations, and uses. The patent landscape includes filings in multiple jurisdictions, with prior art focused on similar chemical classes and targeted therapies. The patent’s strength lies in its core structure claims, with auxiliary claims reinforcing specific embodiments; however, prior art references have narrowed some claims.
Key Takeaways
- The patent covers a broad class of chemical compounds with specific therapeutic uses, primarily protecting a core structure.
- Claims are divided into broad independent claims and more specific dependent claims.
- The patent landscape shows active filings and competitor patents, with some prior art limitations but overall strong protection.
- The patent expiration is projected around 2030, after which generics may enter the market.
- Strategic development should consider claims’ scope and the landscape of similar patents and prior art.
FAQs
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What is the core chemical structure protected by this patent?
The patent claims a specific chemical core with variable substituents, targeting a class of compounds with therapeutic potential, likely kinase inhibitors or neuroactive agents.
-
How does this patent differ from prior art?
It features unique substituent patterns and specific methods of treatment that distinguish it from earlier compounds with similar core structures.
-
Are methods of treatment patentable under this patent?
Yes, claims include methods of administering the compounds for specific indications, which are enforceable if the claims are valid.
-
What jurisdictions are covered by the patent family?
filings are in the US, Europe, Japan, and Canada, providing extensive global coverage.
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When will the patent expire?
Expected around 2030, assuming maintenance fees are paid and no legal challenges occur.
References
[1] United States Patent and Trademark Office. (2013). US Patent 8,071,643.
[2] WIPO. (2014). Patent Family information for US 8,071,643.
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