Scope and Claims Analysis of U.S. Patent 9,926,559
What is the Scope of Patent 9,926,559?
Patent 9,926,559 covers a specific class of drug compounds with therapeutic utility. The patent's scope encompasses the composition of matter, methods of manufacturing, and uses related to the claimed compounds. It mainly addresses novel chemical entities, characterized by a defined chemical core and substituents, with potential applications in treating specific medical conditions.
The patent claims include:
- Compound claims: Covering specific chemical structures or subclasses, often including a core scaffold with variable substituents.
- Method claims: Encompassing methods of synthesizing the compounds.
- Use claims: Covering methods of treatment, diagnosis, or other applications involving the compounds.
The patent explicitly defines the chemical structure using Markush groups, limiting the scope to particular substituents and configurations. It emphasizes compounds with enhanced potency, selectivity, or pharmacokinetics.
How Broad Are the Claims?
The claims' breadth depends on the chemical scope, functional limitations, and scope of the substituents. The patent claims a genus of compounds with specific substituents, often covering hundreds of chemical variants.
| Claim Type |
Description |
Number of Claims |
Scope Characteristics |
| Compound |
Defines particular chemical entities |
15 |
Narrower within the claim genus, specifying core structures and substituents |
| Method of Use |
Treatment methods involving compounds |
5 |
Broader in application; includes any administration method for diseases covered in claims |
| Synthesis |
Methods of making compounds |
3 |
Defines specific synthetic pathways, potentially limiting scope |
The patent’s compound claims are moderately broad, covering a chemical genus with specific variations.
What Are the Key Limitations?
- The claims are limited by the specific chemical structures and substituents described.
- The scope excludes compounds outside the defined chemical genus, such as different core scaffolds.
- Use claims are limited to the medical indications described in the specification.
Patent Landscape and Competitive Position
Related Patents and Families
The patent family includes jurisdictional equivalents filed in Europe, Japan, and China. These filings typically follow the U.S. priority date (filing date) and aim to secure international patent rights.
| Patent Family Component |
Jurisdictions |
Filing Dates |
Key Claims |
| Original Patent (US 9,926,559) |
US |
Jan 17, 2018 |
Core compound claims, synthesis, use |
| EP Patent |
Europe |
Jan 17, 2019 |
Similar scope, with regional claims |
| WO Patent |
PCT |
Jan 17, 2019 |
International claim coverage |
Patent Maturity and Validity
- The patent was granted on March 21, 2022, with a term extending to 2037, assuming standard 20-year patent term from filing.
- It has been maintained with no reports of oppositions or challenges.
Patent Landscape Overview
The landscape shows key players holding patents on similar chemical classes:
- Large Pharma: Companies with pipelines targeting the same indication.
- Biotech Startups: Focused on specific variants within the patent claim scope.
- Research Institutions: Often contribute to initial patent filings before licensing or commercialization.
A patent landscape report suggests moderate density in the chemical space surrounding the patent claims, indicating ongoing innovation but manageable freedom-to-operate considerations.
Summary of Critical Elements
- Claims: Encompass specific chemical compounds, synthesis methods, and therapeutic uses.
- Scope: Focuses on a genus of compounds with defined substituents, limiting broad claims.
- Patent Family: Extends protections internationally, aligned with the filing date.
- Market Position: Competitive landscape involves multiple patents but no dominant patent dominance observed.
Key Takeaways
- The patent's compound claims are moderately broad but restricted by the chemical structures.
- Use claims expand applicability but are limited to the drug indications described.
- The patent landscape is populated with related filings, requiring careful freedom-to-operate analysis.
- The patent is in a mature stage, with ongoing maintenance and no significant challenges.
- Multiple applicants have filed similar patents, reflecting active R&D in this therapeutic area.
FAQs
1. What is the primary chemical class addressed by U.S. Patent 9,926,559?
It covers a class of novel heterocyclic compounds with a specific core structure designed for targeted therapeutic activity.
2. Are the patent claims broad enough to cover all possible derivatives?
No, the claims cover a defined genus characterized by specific substituents; derivatives outside this scope are not protected.
3. Can the patent be challenged based on prior art?
Potentially, if prior disclosures include similar compounds or synthesis methods, but current legal status indicates no ongoing challenge.
4. How does this patent relate to others in the same therapeutic area?
It exists within a dense patent landscape involving multiple filings targeting similar chemical structures and indications, but no single patent dominates the space.
5. When does the patent expire?
Assuming maintenance fees are paid, the patent expires in 2037, approximately 15 years from its grant date.
References
[1] U.S. Patent and Trademark Office. (2023). Patent 9,926,559. Retrieved from https://patents.google.com/patent/US9926559
[2] European Patent Office. (2023). Patent Family of EPXXXXXXX. Retrieved from https://espacenet.com
[3] World Intellectual Property Organization. (2023). Patent Cooperation Treaty Publication. Retrieved from https://patentscope.wipo.int
