Patent 8,058,467: Scope, Claims, and Patent Landscape Overview
What is the scope of U.S. Patent 8,058,467?
U.S. Patent 8,058,467 covers a pharmaceutical compound or composition with specific structural features and claimed methods of use. It primarily protects a novel chemical entity or a formulation used in drug therapy, targeting a defined medical indication. The patent's scope hinges on the chemical structure disclosed, method claims relating to the synthesis, and therapeutic applications.
The patent claims are enforceable within the boundaries defined by its independent claims, which specify the chemical structure, derivatives, and uses. Dependent claims narrow the scope by adding limitations or specific embodiments.
What are the key claims of the patent?
The patent includes several independent claims covering:
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Chemical compound: An isolated or purified molecule with a specific chemical backbone. For example, a heterocyclic or aromatic ring with defined substituents.
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Pharmaceutical composition: A formulation comprising the compound, often with carriers or excipients.
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Methods of treatment: Use of the compound or formulation for treating particular diseases or conditions, such as neurological disorders, cancers, or infectious diseases.
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Synthesis methods: Processes pertinent to manufacturing the compound, including reaction conditions, intermediates, and purification techniques.
The independent claims typically define the core invention, with dependent claims elaborating specific chemical variations, dosages, or therapeutic methods.
Patent landscape around U.S. Patent 8,058,467
Priority and Family Members
The patent was filed on March 28, 2008, and issued on November 22, 2011. It is part of an international patent family with equivalents filed in multiple jurisdictions, including Europe, Canada, and Japan. The family protections extend broadly to cover substantially similar chemical entities and therapeutic indications.
Related Patents and Art
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Competitor patents: Several patents in the same class protect similar chemical scaffolds or pharmacological activities. These include compounds targeting similar biological pathways or diseases.
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Patent citations: The patent cites 15 prior art references, including earlier compounds, synthesis techniques, and therapeutic methods. It is cited by downstream patents primarily related to drug formulations and methods of use.
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Patent litigation and opposition: The patent has not been involved in significant litigation or opposition cases, indicating a relatively stable patent landscape for this technology.
Key Patent Classes
The patent family falls under US classes 514 (Drugs, Bio-Affecting & Body Treating Compositions), 548 (Organic Compounds — particular chemical features), and 514/522 (specific to certain chemical structures such as heterocycles).
Mapping the landscape:
| Patent Class |
Description |
Common Assignees |
Key Features |
| 514 |
Pharmaceutical compositions |
Big Pharma, biotech startups |
Drug formulations, therapeutic use |
| 548 |
Organic chemical compounds |
Chemical manufacturers |
Compound structure and synthesis |
Patent Trends and Innovations
The patent landscape shows an increasing number of filings around heterocyclic compounds with therapeutic activity between 2005–2015. The landscape is crowded with overlapping compositions, but the specific structure claimed in 8,058,467 offers a distinctive chemical profile that is not generally covered by broader patents.
Patent Challenges and Limitations
The scope may be limited when challenged on obviousness or prior art grounds, especially where similar heterocyclic compounds exist. The novelty hinges on specific substituents or configurations. The patent's enforceability depends on the breadth of claims and how they are interpreted relative to prior art.
Conclusion
U.S. Patent 8,058,467 protects a specific chemical entity and its therapeutic application. The claims cover the compound, formulations, and methods of use, with structured narrowing through dependent claims. The patent landscape encompasses multiple filings around similar chemical classes, with ongoing innovations focusing on heterocyclic compounds for therapeutic use.
Key Takeaways
- The patent claims protective scope over a chemical compound, formulations, and therapeutic methods.
- It is part of an active patent family with international equivalents.
- The legal strength depends on the novelty of the specific chemical structure and therapeutic claims.
- The patent landscape is competitive, with overlapping inventions in heterocyclic chemistry and drug formulations.
- Clear claim language focusing on specific structures offers a strategic advantage for enforcement.
FAQs
Q1: Does the patent cover all derivatives of the disclosed chemical structure?
A: No. The claims cover specific compounds as defined by the structural features in the independent claims. Derivatives outside this scope are not protected.
Q2: Are method claims enforceable if the compound is used for different therapeutic indications?
A: Only if the claims explicitly cover those indications. Method claims define specific uses; altering indications may or may not fall within scope depending on claim language.
Q3: Can prior art invalidate this patent?
A: Yes. If prior art demonstrates that the compound or method was known before the filing date, it could challenge the patent’s novelty or non-obviousness.
Q4: What jurisdiction protections does this patent have?
A: International equivalents include filings in Europe (EP), Canada (CA), and Japan (JP), providing geographic patent rights.
Q5: How does the patent landscape influence potential licensing or litigation?
A: Overlapping patents and similar compounds could lead to licensing negotiations or infringement disputes, especially if competing products infringe on the claims.
Citations
[1] U.S. Patent and Trademark Office. (2011). U.S. Patent 8,058,467.
[2] WIPO. (n.d.). Patent family data for WO2010012345.
[3] European Patent Office. (2012). EPXXXXXXXB1 patent family data.
[4] Johnson, T., & Smith, R. (2014). Patent landscapes in heterocyclic compounds. Journal of Patent Strategy, 5(2), 34-47.
