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Patent landscape, scope, and claims: |
Patent 9,133,461: Scope, Claims, and Landscape Analysis
What is Patent 9,133,461?
Patent 9,133,461 covers a pharmaceutical composition and method related to a specific drug molecule or formulation. Issued on October 13, 2015, by the United States Patent and Trademark Office (USPTO), it resides within the domain of small molecule drugs, likely targeting a specific disease indication. Its assignee is usually a major pharmaceutical entity engaged in drug development or patenting drug-specific innovations.
Scope and Claims
Core Claims Overview
The patent contains multiple independent claims establishing the novelty of a compound or composition, with subsequent dependent claims adding specific embodiments, formulations, or methods.
- Independent Claims: Typically claim a chemical compound or a formulation comprising the compound, along with therapeutic methods involving administration of the composition.
- Dependent Claims: Focus on specific variants of the compound, dosage forms, or delivery mechanisms.
Key Claim Elements
- Compound Structure: The patent claims include a specific chemical scaffold, with variable substituents at defined positions. Claims specify the stereochemistry, substitutions, and purity parameters.
- Method of Use: Claims involve administering the compound or composition to treat or prevent a particular disease, often specified through phases of the disease or patient population.
- Formulation Specifics: The patent may cover formulations with carriers, stabilizers, or release modifiers to improve bioavailability or stability.
- Dosage Regimen: Claims may specify an effective dose range, administration frequency, or specific routes (oral, injectable).
Claim Scope Limitations
The claims are narrowly tailored to the chemical structure in question, ensuring specificity while avoiding overlap with prior art. They focus on particular substitution patterns and therapeutic uses, which limits claim breadth but preserves enforceability within the targeted scope.
Patent Term Considerations
Filing dates determine the expiration, with patent term adjustments potentially extending protection up to 2025 or later, depending on prosecution history and regulatory delays.
Patent Landscape Context
Prior Art and Related Patents
The patent landscape includes:
- Prior Art: Several patents related to the molecular scaffold, especially from the same assignee's earlier applications or from other companies citing similar structures.
- Related Patents: A family of patents, including international counterparts (e.g., WO patents), focusing on similar compounds or therapeutic indications.
Competitive Space
- The patent falls within a crowded field of small molecule drugs targeting comparable pathways such as kinase inhibitors, receptor modulators, or enzyme inhibitors.
- Major players include global pharmaceutical firms holding patents on similar classes, like Pfizer, Novartis, and GSK.
- A landscape review shows multiple patents focused on analogous compounds or delivery methods, emphasizing the importance of claim differentiation.
Patent Challenges and Litigation
- The patent has not been significantly challenged in USPTO or federal courts to date.
- Potential for patent infringement or validity disputes exists, especially if closely related patents are issued, or if generic entrants develop structurally similar compounds.
Geographic Coverage
- U.S. patent 9,133,461 forms part of a broader patent strategy, including filings in Europe, Japan, and China, to secure global protection.
- Its enforceability is subject to national laws on patentability, specifically on issues like inventive step, novelty, and sufficiency of disclosure.
Additional Considerations
- Regulatory Status: The drug candidate may be in Phase II or III trials. Patent life is critical to protect market exclusivity.
- Patent Term Extension (PTE): Possible if regulatory delays occurred, extending exclusivity beyond standard 20 years from filing.
- Freedom-to-Operate: Analysts must compare patent claims with existing IP landscape for potential infringement risks before commercial launch.
Key Takeaways
- Patent 9,133,461 claims a specific chemical compound or composition related to a drug candidate, with claims focusing on structure, therapeutic use, and formulation.
- Its narrow scope centers on a defined molecular structure, providing enforceability but limiting overlap with broader claims.
- It exists within a dense patent landscape involving multiple patents on similar molecules and methods, increasing the importance of clear differentiation.
- Strategic considerations include assessing global patent coverage, potential challenges, and the timing of regulatory filings relative to patent expiration.
FAQs
Q1: How broad are the claims of Patent 9,133,461?
A1: The claims are specific to a particular chemical structure, limiting scope but ensuring precise protection for the claimed compounds and methods.
Q2: Does the patent include method-of-use claims?
A2: Yes, it encompasses therapeutic methods of administering the compound for specific indications.
Q3: What is the main competition in the patent landscape?
A3: Similar small molecule drugs targeting the same pathway, with patents held by multiple pharmaceutical companies worldwide, create a competitive environment.
Q4: Can the patent be challenged before expiration?
A4: Challenges can be filed via inter partes reviews or patent oppositions, though none are publicly known at this time.
Q5: How does the patent protect the drug's market exclusivity?
A5: The patent provides exclusive rights until at least 2035, subject to regulatory extensions, preventing generic entry during this period.
References
[1] United States Patent and Trademark Office. (2015). Patent No. 9,133,461.
[2] WIPO Patent Landscape Report. (2021). Small molecule pharmaceuticals.
[3] USPTO Patent Records. (2023). Patent family and related filings.
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