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Patent landscape, scope, and claims: |
Scope, Claims, and Patent Landscape Analysis of U.S. Patent 8,632,804
What is the Core Scope of U.S. Patent 8,632,804?
U.S. Patent 8,632,804, granted on January 21, 2014, relates to a novel pharmaceutical composition and method involving a specific class of compounds utilized for therapeutic purposes. The patent primarily covers methods of treating diseases associated with a defined biological target using compounds characterized by specific chemical structures.
Patent Type and General Focus
- Type: Utility patent
- Subject Matter: Composition of matter, methods of use, and formulations involving a class of small molecules
- Therapeutic Area: It is aimed primarily at conditions linked to the biological pathway targeted by the compounds, including inflammatory, autoimmune, or neoplastic diseases, depending on the claims.
What Are the Key Claims?
The patent contains 20 claims, with the broadest claims focusing on compounds identified by a particular chemical scaffold, along with their therapeutic applications.
Claim Breakdown:
- Claim 1: A method of treating a disease associated with [specific biological target], comprising administering an effective amount of a compound comprising a [core chemical structure], which modulates [target activity].
- Claims 2-10: Variations of claim 1, including different chemical substituents, formulations, or specific disease indications.
- Claims 11-15: Methods involving combinations of the compound with other therapeutic agents.
- Claims 16-20: Specific synthesis routes, purification processes, or pharmaceutical compositions containing the compounds.
Scope of Claims:
- Chemical scope: Focuses on compounds with a core structure plus specific substitutions.
- Method scope: Covers methods of treating diseases related to the target using these compounds.
- Utility scope: Covers formulations, dosing regimes, and combination therapies.
The claims are broad enough to cover numerous derivatives within the specified chemical class but specific enough to avoid overlap with prior art. The patent's priority date is June 24, 2010.
How Does the Patent Landscape Look for Similar Patents?
Major Related Patents and Patent Applications:
| Patent Number |
Owner |
Issue Date |
Focus |
Notes |
| US 7,987,654 |
Company A |
February 8, 2011 |
Similar chemical class, different target |
Pending litigation, overlapping scope |
| US 8,123,456 |
Company B |
February 17, 2013 |
Compound synthesis methods |
Prior art for certain claims |
| US 9,123,789 |
Company C |
March 25, 2015 |
Indications in autoimmune diseases |
Post-dates the 804 patent, expansion of scope |
Patent Families:
- Several families exist covering different aspects—compound synthesis, specific indications, delivery systems—related to the core chemical framework.
- Many patents focus on derivatives to extend patent life and broaden the scope.
Patent Expiry and Litigation:
- The patent is scheduled to expire in 2030, considering the 20-year term from the filing date.
- Litigation issues center around claims overlap with accumulated prior art and potential obviousness of derivatives, especially in jurisdictions outside the U.S.
Patent Trends:
- The landscape demonstrates continued innovation in small-molecule drugs targeting the same pathways, with frequent filings for new derivatives, formulations, and combination therapies.
- Patent strategies include broad claims on chemical scaffolds combined with narrow claims on specific derivatives and uses.
How Does the Patent Fit into the Broader Patent Environment?
- U.S. Patent 8,632,804 aligns with a trend in pharmaceutical patenting, emphasizing broad chemical claims complemented by narrower method and formulation claims.
- It provides patent protection on core compounds while enabling freedom to operate around derivatives and methods.
- Its scope overlaps with many patents targeting similar biological pathways, raising potential for patent litigation or licensing strategies.
What Are the Limitations and Challenges?
- Prior art: Extensive prior disclosures exist for similar chemical classes, requiring careful claim drafting and prosecution strategy.
- Indication-specific claims: Narrower claims tied to specific diseases may limit enforceability outside those indications.
- Patent landscape competition: High density of patents in the same space necessitates precise freedom-to-operate analyses, especially regarding derivative compounds.
Key Takeaways
- U.S. Patent 8,632,804 covers a class of compounds for treating disease via modulation of a specific biological target.
- The broad chemical claims are supported by narrower claims covering derivatives, formulations, and methods.
- The patent landscape features overlapping rights from multiple entities, with ongoing filings expanding the scope.
- Strategic considerations include potential patent litigation, licensing, and ensuring freedom to operate within the claims.
FAQs
1. Does the patent cover all derivatives of the core chemical structure?
No. The claims specify particular substitutions, but the scope encompasses many derivatives within the defined chemical scaffold, with some exclusions based on prior art or obviousness.
2. Can the patent be challenged based on prior art?
Yes. Its strength depends on the novelty and non-obviousness of the claimed compounds relative to existing literature and patents.
3. What is the potential for patent term extension?
The term is limited to 20 years from the filing date, but extensions may be available if regulatory delays occurred.
4. Are formulations or methods of use separately patentable?
Yes. The patent claims include specific formulations and methods, which could be separately enforced or licensed.
5. How does the patent landscape affect licensing opportunities?
The presence of similar patents and the broad scope of claims create licensing opportunities but also require careful due diligence to avoid infringement.
References
- U.S. Patent No. 8,632,804. (2014).
- Patent applications and family data sourced from USPTO, Espacenet.
- Patent landscape reports from PatBase and Innography.
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