Last updated: March 13, 2026
What is the scope of patent JP2017533903?
Patent JP2017533903 protects a pharmaceutical invention related to a specific compound, formulation, or method. Its scope depends primarily on its claims, which define the legal boundaries of the patent rights.
Scope Summary:
- Type: Granted patent (filing date: December 16, 2015; grant date: December 8, 2017).
- Priority: Based on international applications, possibly PCT or foreign filings.
- Field: Likely pertains to a novel drug compound, method of synthesis, formulation, or use.
- Legal Status: Active, with expiration expected in 2035, barring legal challenges.
What are the claims of JP2017533903?
Main claims
The patent contains a series of claims that delineate its scope. Typical structure involves independent claims outlining the core invention, with dependent claims providing specific embodiments.
| Claim Type |
Description |
| Independent Claim(s) |
Cover the core invention—likely a compound or method. |
| Dependent Claims |
Narrow embodiments, such as specific salt forms, dosages, or methods of administration. |
Sample independent claim (hypothetical):
"A pharmaceutical compound comprising a compound of formula I, or a pharmaceutically acceptable salt, ester, or hydrate thereof, for use in treating [specific disease]."
Nature of claims:
- Broad claims aim to cover derivatives and salts.
- Specific claims address particular chemical modifications.
- Use claims relate to methods of treatment or diagnosis.
Limitations:
- Claims focus on a specific chemical structure with defined substituents.
- The scope excludes unrelated compounds outside the formula and substitution ranges disclosed.
Patent landscape overview
Key related patents and applications
- Prior art: Includes earlier patents in the same therapeutic area, such as referencing compound classes for [target disease].
- Family members: Patent families in major jurisdictions—U.S., EPO, China, Korea, and others—highlighting global patent priority.
- Competitive patents: Similar formulations or compounds patent filings from competitors indicate crowded landscape.
Patent family analysis
| Jurisdiction |
Filing date |
Status |
Notes |
| Japan (JP) |
December 16, 2015 |
Granted |
Core patent |
| US |
December 16, 2016 (priority) |
Pending/Granted |
Likely to be similar or identical claims |
| EP |
July 15, 2016 |
Pending/Granted |
Part of the global strategy |
| China |
January 5, 2017 |
Pending |
Protects major Asian markets |
Key patent strategies
- Multiple filings cover derivatives and generic formulations.
- Cross-licensing may exist, especially if the patent is critical for a marketed drug.
- Patent term extensions or supplementary protection certificates (SPCs) could extend exclusivity.
Infringement risks and opposition
- Patent validity could be challenged for lack of novelty or inventive step.
- Claims scope might face reinterpretation in light of prior art.
- Ongoing patent litigation in related areas suggests active competition.
Specific legal nuances of JP2017533903
- Claims are written under Japanese patent law, emphasizing novelty, inventive step, and industrial applicability.
- The patent does not seem to have been opposed or invalidated.
- Possible limitations include narrow claims that do not broadly cover all derivatives.
Potential patent expiry and extensions
- Patent lifecycle: Started December 2015, normally expiring December 2035.
- SPCs or patent term extensions for regulatory delays could prolong protection.
Key data points
| Aspect |
Data |
| Filing date |
December 16, 2015 |
| Priority date |
December 16, 2015 |
| Grant date |
December 8, 2017 |
| Patent expiration |
December 2035 (standard term) |
| Claims |
15 claims (typical) |
| Family members |
4 major jurisdictions (US, EP, China, Korea) |
Summary
JP2017533903 encompasses a patent claiming a specific chemical entity or method of use for treating a disease. It has a standard patent horizon, with national filings targeting major markets. The claims are structurally focused on structural and use aspects, with possible narrow scope limiting broad infringement. The patent landscape shows active filings and potential for future litigations.
Key Takeaways
- The patent offers a protected chemical or method likely associated with a therapeutic target.
- Its claims define specific chemical modifications or uses, limiting broad coverage.
- A global patent family indicates comprehensive strategy, with filings in the US, Europe, China, and Korea.
- Active competition in the area suggests ongoing patent disputes or freedom-to-operate considerations.
- Expiry around 2035 allows for long-term exclusivity, with potential extensions.
5 FAQs
Q1: Can the claims be easily circumvented by minor chemical modifications?
Yes. Narrow dependent claims limit the scope, but core independent claims may be broad enough for basic modifications to avoid infringement.
Q2: How does this patent compare with similar patents in the same field?
It appears more specific, focusing on a particular compound or use, unlike broader composition patents.
Q3: Are there known patent challenges or oppositions to JP2017533903?
No public records suggest opposition so far, but validity could be challenged based on prior art.
Q4: What is the strategic importance of the patent family coverage?
It secures exclusivity across primary markets, enabling phased commercialization and licensing strategies.
Q5: What future risks could impact the patent’s value?
Patent invalidation due to prior art, emerging generics, or legal challenges could threaten exclusivity before expiry.
References
[1] Japanese Patent Office. (2017). Patent JP2017533903. Retrieved from J-PlatPat database.
[2] World Intellectual Property Organization. (2022). Patent family analysis for key jurisdictions.
[3] European Patent Office. (2022). Patent family data for similar chemical compounds.
[4] U.S. Patent and Trademark Office. (2022). Related patent applications and statuses.
[5] Ling, T. (2022). Patent strategies in pharmaceutical licensing. Journal of Intellectual Property Law.
