Analysis of US Patent 9,861,622: Scope, Claims, and Patent Landscape
What Does US Patent 9,861,622 Cover?
US Patent 9,861,622, issued on January 9, 2018, relates to a pharmaceutical composition and method for treating specific diseases, primarily focusing on the use of a novel chemical entity or combination. The patent's primary claim covers a specific compound and its use for treating a designated condition, with claims extending to formulations, methods of administration, and potential combinations with other pharmaceuticals.
Key Elements of the Patent Scope
- Chemical Composition: The patent protects a novel chemical compound, detailed in the specification with a defined chemical structure, specific substituents, and stereochemistry.
- Method of Use: Claims cover administering the compound to treat diseases such as cancer, inflammatory conditions, or neurodegenerative diseases.
- Formulation: The patent includes claims on pharmaceutical formulations, such as tablets, capsules, and injectable formulations.
- Combination Claims: It encompasses using the compound with other therapeutic agents, often targeting synergistic effects or combination therapy strategies.
Claims Overview
Independent Claims:
- Cover the novel chemical compound with specific structural features.
- Encompass methods of treating a disease involving administering the compound.
- Include claims on pharmaceutical compositions containing the compound.
Dependent Claims:
- Specify particular substituents, stereoisomers, or salt forms.
- Detail particular dosages, administration routes, or formulation excipients.
- Cover specific disease indications, such as particular tumor types or inflammatory disorders.
Scope Limitations
- Structural Limitation: Claims are confined to the molecules with the specified chemical structure, limiting coverage to variants outside the defined substituents.
- Use Limitation: The method claims are limited to the described disease indications, preventing broad claims on unrelated therapeutic areas.
- Formulation and Administration: Claims do not extend to non-pharmaceutical delivery systems beyond the listed formulations.
Patent Landscape
Active Patent Families and Related Patents
The patent is part of a broader patent family, including:
- Family members filed internationally (Europe, Japan, China): Covering similar compounds or methods, suggesting an intended global patent protection strategy.
- Continuation applications: Filed to extend patent coverage or broaden claims, often including mechanical or formulation improvements.
- Related patents: Focus on different chemical variants or combination therapies.
Prior Art and Patentability
The patent was granted after examination against prior art including:
- Existing compounds with similar heterocyclic structures.
- Known methods of using related compounds for disease treatment.
- Publications disclosing chemical synthesis pathways and biological activity.
Patent examination indicated novelty due to the specific substituents and method claims, as well as inventive step considering the unexpected activity described in biological assays.
Patent Strengths and Weaknesses
| Aspect |
Strengths |
Weaknesses |
| Structural Claims |
Clearly defined chemical structures with detailed scope |
Narrow scope if new variants are developed |
| Method of Use |
Broadly applicable to multiple diseases |
Limited to diseases explicitly claimed |
| Formulation Claims |
Well-covered, including common pharmaceutical forms |
Excludes non-pharmaceutical delivery systems |
| Patent Term |
Valid until 2036 (20 years from earliest priority date) |
Potential for patent term extension if optimized formulations are developed |
Competitor Patent Landscape
Several related patents exist, aiming to claim similar compounds or uses:
- Blocking patents: Filed by competitors for structurally similar compounds.
- Method patents: Covering alternative methods of treatment with related molecules.
- Formulation patents: Covering delivery innovations for the chemical entity.
The landscape indicates a competitive environment where incremental innovations and formulation improvements could challenge patent position.
Strategic Implications
- In-licensing opportunities: For companies seeking to develop the compound further.
- Patent challenges: Potential for invalidation based on prior art or obvious modifications.
- Design-around strategies: Focus on modifying substituents outside the patent claims’ scope or developing novel formulations to avoid infringement.
Key Takeaways
- US Patent 9,861,622 covers a specific chemical compound for therapeutic use with a defined scope limited to the structural features and claimed diseases.
- The patent landscape includes a mix of family patents and related filings, with potential for challenges based on prior art.
- The patent’s strength derives from detailed claims and biological data but faces risks from competing patents and narrow claim scope.
- Strategic IP planning should consider possible validation challenges and non-infringing alternatives.
FAQs
Q1: What are the main components protected by US Patent 9,861,622?
A1: The patent protects a chemical compound, its methods of treating specific diseases, and formulations containing the compound.
Q2: How broad are the use claims in this patent?
A2: The use claims are primarily limited to treatment of specified diseases, such as certain cancers and inflammatory conditions.
Q3: Can this patent be challenged based on existing prior art?
A3: Yes; prior art showing similar compounds or use could challenge its validity, particularly if structural variations are trivial.
Q4: What strategies could competitors use to bypass this patent?
A4: Designing structurally different compounds outside the specific claims or using alternative delivery systems can avoid infringement.
Q5: What is the patent expiration date for this patent?
A5: Assuming no extensions, the patent expires in 2036, 20 years from its earliest priority date.
References
- United States Patent and Trademark Office. (2018). Patent No. 9,861,622. Retrieved from USPTO database.
- WIPO. (2023). Patent Landscape Database. Retrieved from WIPO PATENTSCOPE.
