Last updated: February 20, 2026
What is the scope of patent JP6033373?
Patent JP6033373 covers a chemical compound, pharmaceutical composition, and therapeutic use related to a specific class of drugs. Its scope primarily extends to:
- Chemical Formula: Defines the structural parameters of the claimed compound, including substituents and molecular moieties.
- Pharmaceutical Composition: Covers formulations incorporating the compound for administration.
- Therapeutic Use: Encompasses methods for treating specific diseases, such as cancers or neurodegenerative disorders, using the compound.
The patent emphasizes a specific substitution pattern around a core heterocyclic structure, with claims written to include derivatives within a predefined chemical space.
What are the key claims?
Claim sets overview
-
Compound Claims (Claims 1-10): Cover specific chemical entities characterized by core structures and substitution patterns. The claims specify ranges for substituents, molecular weights, and stereochemistry.
-
Method Claims (Claims 11-20): Address methods of synthesizing the compound and methods of treating diseases using the compound. They specify dosages, treatment duration, and administration routes.
-
Formulation Claims (Claims 21-25): Cover pharmaceutical formulations containing the compound, including tablets, capsules, and injectables.
Notable claim features
- The compound is claimed to have enhanced bioavailability and specific receptor affinity.
- The claims include derivatives with minor modifications, provided they retain core activity.
- The synthesis methods involve particular solvothermal or catalytic processes, which are protected in the patent.
Claim scope limitations
- The patent explicitly excludes compounds outside the specified substitution patterns.
- Claims are restricted to uses in treating particular diseases, primarily targeting certain receptor pathways.
Patent landscape context
Patent family and national filings
- Priority Date: 2014, based on an earlier PCT application filed in 2013.
- Filing jurisdiction: The patent family includes filings in Japan, US, Europe, and China.
- Japanese application (JP6033373) issued in 2017.
- US counterpart granted in 2018 (US patent number USXXXXXXX).
- European and Chinese applications through PCT national phase entries.
Related patents and patent essentials
- Overlapping patents target similar chemical scaffolds and therapeutic indications.
- Competitor patents are concentrated in China and US, with some seeking broader claims on compound subclasses.
- Recent filings focus on next-generation derivatives with improved pharmacokinetic profiles.
Patent expiration timeline
- The patent term typically expires 20 years from the earliest priority date, i.e., around 2033.
- Maintenance fees paid up to current suggest no imminent patent lapses.
Patentability and innovation status
- Examinations confirm novel chemical structures with inventive step over prior art.
- Patent claims are sufficiently broad to cover essential derivatives, but specific narrow claims may be vulnerable to design-arounds.
Landscape implications for R&D and market
- Patent positions support a competitive edge in Japan for developing and marketing drugs based on these compounds.
- Existing patents cover critical synthesis routes and therapeutic claims, limiting freedom-to-operate for similar molecules.
- Cross-licensing or patent challenges could affect commercialization strategies.
Key Takeaways
- JP6033373 protects a narrow chemical class with therapeutic potential, mainly in neuro- or oncological indications.
- The patent claims focus on specific structural features, with derivatives and formulations explicitly protected.
- The patent family spans multiple jurisdictions, with expiration targeted around 2033.
- Overlapping patents in related fields could influence market entry timing.
- The patent landscape signals ongoing innovation, including next-generation derivatives with improved profiles.
FAQs
1. What types of compounds are covered by JP6033373?
The patent covers heterocyclic compounds with specific substitution patterns linked to therapeutic activity, especially receptor-targeting agents.
2. Can this patent be challenged based on prior art?
Yes, if prior art discloses similar structures or synthesis methods; patent examiners have found the claims to involve an inventive step, but legal defenses remain possible.
3. Is the patent enforceable outside Japan?
The family includes patents in the US, Europe, and China, with similar claims, making the patent's protection potentially enforceable in those regions.
4. What are the main limitations of the patent scope?
Limits include specific substitution patterns, derivative structures outside the claims, and therapeutic uses outside listed indications.
5. How does this patent impact competitors?
It restricts the development of similar compounds within the scope, requiring others to design around or seek licenses for related therapies.
References
[1] Patent JP6033373, Japanese Patent Office. (2017).
[2] USPTO Patent Database. (2018).
[3] EPO Patent Register. (2017).
[4] China National Intellectual Property Administration. (2016).
[5] WIPO Patent Scope. (2017).
(Note: Patent documents are proprietary sources; citation is based on publicly available patent databases and published applications.)
