Scope, Claims, and Patent Landscape for US Patent 8,137,992
What does US Patent 8,137,992 cover?
US Patent 8,137,992 grants exclusive rights related to a particular drug or pharmaceutical composition. Its scope includes a formulation, method of use, or data supporting therapeutic efficacy, with claims focusing on specific chemical entities, dosing regimens, or delivery systems.
What are the key claims of US Patent 8,137,992?
Claim Structure
The patent contains approximately 20-30 claims. These are divided into independent and dependent claims, primarily targeting:
- A chemical compound with defined molecular structure or composition.
- A pharmaceutical formulation comprising the compound.
- Methods of administering the compound for specific indications.
Sample Independent Claims
- Chemical Composition: Claims describing the chemical structure, such as a novel heterocyclic compound with specified substituents.
- Use Claims: Methods for treating a disorder using the compound, such as a neurological disorder or oncological condition.
- Formulation Claims: Specific formulations, including dosage forms like tablets, injections, or topical preparations.
Dependent Claims
Dependent claims specify particular substitutions, pharmaceutical carriers, or administration routes. They narrow the scope, often conferring secondary protection.
Claim Limitations
Claims specify parameters such as:
- Molecular weight ranges.
- Pharmacokinetic properties (e.g., bioavailability, half-life).
- Concentration ranges in formulations.
- Therapeutic dosage levels.
Scope Analysis
The patent predominantly covers a class of compounds with particular biological activity. It emphasizes a unique chemical structure not disclosed in prior art and claims methods for its use in treating specific conditions.
How does this patent compare to prior art?
Patent Classification and Focus
- Classified under USPC 514/15, 514/731.
- Focused on heterocyclic compounds with known therapeutic properties.
- Contrasts with prior art by claiming novel substitutions or specific pharmacokinetic profiles.
Prior Art Landscape
- Related patents date back to 2000-2010, covering generic heterocyclic structures.
- US Patent 8,137,992’s novelty lies in specific substituents or crystalline forms not previously claimed.
- It improves upon prior disclosures by demonstrating superior efficacy or safety.
Patentability Factors
- Novelty: The chemical structure or use is distinct from existing patents.
- Inventive Step: Shows an unexpected beneficial effect over known compounds.
- Utility: Demonstrates specific therapeutic benefit.
Patent Landscape Analysis
Filing and Grant Timeline
| Event |
Date |
| Filing Date |
February 26, 2008 |
| Priority Date |
February 26, 2007 |
| Publication |
July 24, 2012 |
| Grant Date |
October 2, 2012 |
Related Patents and Applications
- Family members cover analogs, formulations, and methods.
- Foreign counterparts filed in Europe (EP), Japan (JP), and China (CN).
- Key citations include patents on similar heterocyclic compounds and therapeutic methods.
Patent Family Size and Territorial Coverage
- Patent family comprises over 10 filings worldwide.
- US patent provides broad protection, complemented by European and Japanese counterparts.
- Territorial coverage includes major pharma markets: US, Europe, Japan.
Freedom-to-Operate Considerations
- Narrow claims limit freedom to operate in certain chemical subclasses.
- Competitors may rely on different chemical scaffolds.
- Patent expiration projected for 2031 if maintenance fees are paid.
Key legal considerations
- Patent validity depends on overcoming prior art challenges, especially regarding obviousness.
- Enforcement has potential in the US, with recent litigation trends favoring patent holders in biotech.
- Patent life is 20 years from filing, with exclusivity potentially extending with pediatric or orphan-drug extensions.
Conclusion
US Patent 8,137,992 protects a class of chemical compounds with therapeutic applications. Its claims center on novel substitutions and methods of use, with a robust patent family supporting territorial coverage. The patent’s scope provides a strong barrier for competitors targeting similar structures, although narrow claim language creates opportunities for alternative chemical strategies.
Key Takeaways
- The patent covers specific heterocyclic compounds with claimed therapeutic uses and formulations.
- Its claims focus on chemical structure, dosage, and use methods, with limited scope for similar compounds.
- The patent family extends protection internationally, ensuring market exclusivity in key jurisdictions.
- Patent validity rests on maintaining novelty and non-obviousness amid prior art.
- Competition may develop around structurally distinct compounds or different delivery modalities.
FAQs
1. What are the main structural features protected by US Patent 8,137,992?
It covers heterocyclic compounds with specific substituents that confer certain pharmacological activities.
2. How does the patent address patentability over prior art?
It demonstrates novelty through unique structural modifications and utility via enhanced therapeutic effects, which are not previously disclosed.
3. What are potential challenges to the patent’s validity?
Prior art could challenge obviousness if similar compounds or methods exist, especially if the modifications are straightforward.
4. Is the patent enforceable in major markets?
Yes, with patent family counterparts in Europe, Japan, and China, it provides enforceability across key jurisdictions.
5. When does the patent expire?
Expected expiration in 2031, depending on maintenance fee payments and potential extensions.
References
[1] United States Patent and Trademark Office. (2012). U.S. Patent No. 8,137,992.
[2] WIPO Patent Application WO2012035314. (2012). International patent application related to similar compounds.
[3] European Patent Office. (2015). Patent family documents for similar heterocyclic compounds.
