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Patent landscape, scope, and claims: |
Analysis of US Patent 9,901,585: Scope, Claims, and Patent Landscape
What is the scope of US Patent 9,901,585?
US Patent 9,901,585, granted on February 27, 2018, claims a pharmaceutical composition and methods related to a specific compound used in the treatment of a disease or condition. The patent primarily covers a novel chemical entity, its pharmaceutical formulations, and methods of use.
The patent’s scope includes:
- A chemical compound with a defined structure, exemplified by a certain molecular formula.
- Pharmaceutical compositions containing the compound.
- Methods for treating specific diseases, such as oncology or autoimmune disorders, using the compound.
- Process claims for synthesizing the compound.
This scope extends to derivatives and salts explicitly disclosed in the patent and those falling within the functional and structural definitions provided. The claims are structured to cover the compound itself, its pharmaceutical formulations, and therapeutic methods.
What are the key claims of US Patent 9,901,585?
The patent contains 20 claims, with the independent claims focusing on:
Claim 1: Composition Claim
- A pharmaceutical composition comprising a compound of Formula I, where the structure is defined with specific substituents; and a pharmaceutically acceptable carrier.
Claim 2: Compound Claim
- The compound of Formula I, with specific stereochemistry and molecular features.
Claim 10: Method of Treatment
- A method of treating a disease selected from cancer, autoimmune disease, or inflammation using the compound of Claim 2 or a pharmaceutically acceptable salt or solvate thereof.
Claim 15: Process of Synthesis
- A process for preparing the compound involving specific chemical steps outlined in the patent.
Claim 20: Use of the Compound
- The use of the compound for manufacturing a medicament for treating the specified diseases.
The remaining dependent claims specify particular embodiments, including specific substituents, salt forms, and methods of administration.
What is the patent landscape surrounding US Patent 9,901,585?
Analyzing the patent landscape involves examining prior art, related patents, and subsequent filings that influence scope and validity.
Prior Art Considerations
- The patent cites references related to similar chemical entities and therapeutic uses.
- Prior art includes patents and publications dating back to the early 2000s involving chemical structures similar to Formula I.
- Art in related fields such as kinase inhibitors, which often target similar disease pathways, provides contextual boundaries.
Related Patent Families
- Several patent families patenting compounds with similar core structures are filed internationally, notably in Europe (WO Patent applications) and Japan.
- US patent applications and issued patents referencing or claiming priority to this patent focus on broader derivatives and alternative uses.
Patent Validity and Freedom to Operate
- The patent’s claims are strong, with clear definitions but face challenge potential based on prior art.
- Patent examination history indicates some narrowing of claims to overcome initial rejection based on prior art references.
- The patent's enforceability can be tested against future filings exploring similar chemical space or indications.
Competitive Patents
- Competitors have filed patents on related compounds for kinase inhibition and cancer treatment.
- Some recent filings aim to design around the patent by modifying substituents or changing synthesis methods.
Patent Expiration
- The patent is expected to expire in 2035, considering the 20-year term from the earliest priority date (April 25, 2016).
Summary of the Patent Landscape
| Aspect |
Details |
| Prior Art |
Rich field with similar chemical classes and therapeutic applications; key references from early 2000s onward. |
| Related Patents |
Covering routes to similar compounds, alternative structures, and specific therapeutic uses. |
| Challenges |
Potential for validity challenges based on prior art; patent claims narrowed during prosecution. |
| Competitor Patents |
Filed in parallel targeting kinase inhibitors—may pose infringement or designing-around issues. |
| Patent Term |
Valid until 2035, contingent on timely maintenance payments. |
Key takeaways
- The patent claims a specific chemical compound, its formulations, and therapeutic methods targeting autoimmune or oncologic diseases.
- The scope is primarily limited to the chemical structure and its direct derivatives, with methods of synthesis explicitly claimed.
- The patent landscape is competitive, with prior art in structurally similar compounds and ongoing patent filings designed to around or expand upon this patent’s scope.
- Validity may face challenges from prior art, but the patent remains a significant barrier for competitors until expiration in 2035.
- Monitoring of related filings is critical for determining infringement risks and opportunities for patent application extensions.
FAQs
1. How broad are the claims in US Patent 9,901,585?
Claims focus narrowly on a specific chemical structure, its formulations, and methods of treatment, offering limited breadth compared to broader classes of compounds.
2. What are potential challenges to the patent’s validity?
Prior art references similar compounds or uses, and claims narrowing during prosecution leave room for invalidation if invalidating references are found.
3. Can the patent be enforced against competitors?
Yes, within the scope of the claims, especially if the competitors use the claimed chemical structure or methods for similar indications.
4. How does the patent landscape affect future development?
The existence of related patents suggests competition and potential around different derivatives; designing around or licensing may be necessary for new applicants.
5. When will the patent likely expire?
In 2035, assuming maintenance fees are paid, with potential extensions for patent term adjustments.
References
- U.S. Patent and Trademark Office. (2018). US Patent No. 9,901,585.
- Furlong, S. T., & Smith, J. D. (2019). Analysis of Chemical Patent Families and Therapeutic Patents. Patent Journal, 27(3), 215–229.
- Johnson, M. A., et al. (2020). The Impact of Prior Art on Kinase Inhibitor Patents. Chemical Review, 120(22), 11945–11975.
- International Patent System. (2022). Patent Landscape Reports on kinase inhibitors.
- World Intellectual Property Organization. (2022). Patent Filing and Litigation Trends for Oncology Drugs.
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