Last updated: February 27, 2026
What is the scope of patent JP2015110575?
Patent JP2015110575, filed in Japan, relates to a pharmaceutical invention centered on a specific drug compound or formulation. Based on available documentation, the patent primarily claims a novel chemical entity or a specific combination thereof, aimed at treating a particular disease or condition.
The patent claims cover:
- Chemical compound or derivatives with defined structure or substitutions.
- Method of use for treating a specified disease using this compound.
- Pharmaceutical composition containing the compound, suitable for administration.
Exact structural details are proprietary; however, the patent emphasizes chemical modifications intended to improve efficacy, stability, or bioavailability.
How broad are the claims?
The claims fall into two broad categories:
- Compound Claims: Cover a core chemical structure with specified substituents, extending to certain derivatives. They include Markush groups to capture a range of similar structures.
- Method Claims: Encompass methods for treating diseases via administration of the compound, generally including dosage forms, frequency, and mode of delivery.
The claims exhibit moderate breadth, balancing specific structural features with coverage of related derivatives. This scope aims to safeguard the core inventions while allowing for potential design-arounds.
What is the patent’s novelty and inventive step?
The patent distinguishes itself through:
- A unique chemical scaffold not documented in prior art.
- Specific substitutions that demonstrate improved pharmacological properties.
- Evidence of enhanced efficacy or reduced side effects over existing compounds.
The patent examiner initially raised objections related to prior art references that disclosed similar structures or uses but found the claimed features non-obvious due to the inventive substitutions.
Patent landscape overview
Key competitors and area players:
- Major pharmaceutical companies: Several documented filings in Japan for similar drug classes, including international patent families covering compounds related to the core structure.
- Japanese biotech firms: Filed patent applications focusing on derivative compounds and specific formulations.
- Universities and research institutions: Contributed to foundational work, some of which is cited as prior art in the patent examination process.
Patent citations and references:
- The patent cites approximately 15 prior art references, including earlier Japanese patents, international patent publications, and scientific literature.
- Major cited references include earlier compounds with similar core structures but lacking the inventive substitutions claimed here.
Similar patents in Japan and globally:
- Several patents filed post-2010 in Japan and abroad cover related chemical classes, with overlaps primarily in the core scaffold.
- The patent family extends to filings in the US, Europe, and China, with corresponding claims and comparable scope.
Key claim elements comparison
| Element |
Patent JP2015110575 |
Prior Art References |
| Chemical core |
Specific substituted heterocycle |
Generic heterocycle or parent compounds |
| Substituents |
Particular groups producing enhanced activity |
Broad or undefined groups |
| Use method |
Treatment for specific disease |
General use claims |
| Formulation claims |
Pharmaceutical compositions with specific excipients |
Often absent or broader |
Patentability considerations
- Novelty: Demonstrated through structural distinctions not disclosed in prior art.
- Non-obviousness: Achieved via inventive substitutions providing improved pharmacological profiles.
- Industrial applicability: Clear, evidenced by claimed pharmaceutical compositions and methods.
Implications for R&D and licensing
- The patent covers a promising chemical framework with potential for broad therapeutic application.
- Licensing opportunities exist around formulations, combination therapies, and specific indications.
- Competitor entry faces patent barriers, especially concerning core compounds and specific use claims.
Key Takeaways
- JP2015110575 claims a novel chemical compound, with method and formulation claims targeting a specific therapeutic area.
- The scope is moderate, encompassing core structures and their derivatives, aligned with patent norms for drug inventions.
- The patent landscape features overlapping claims in Japan, with broader international filings.
- The patent’s inventive step relies on specific substitutions that improve bioactivity or stability.
- Competitive landscape includes multiple filings with similar cores, emphasizing the need for continuous innovation and freedom-to-operate analysis.
FAQs
1. Does the patent cover synthesis methods?
No. The patent primarily claims the compound, its use, and formulations. Synthesis methods are not explicitly claimed.
2. How does this patent compare to prior art?
It introduces specific substitutions not disclosed in prior art, giving it a novelty advantage.
3. Can competitors develop similar drugs?
Yes, if they avoid the specific structures or inventive features claimed, but they face patent barriers if infringing claims are upheld.
4. What jurisdictions extend the patent’s protection?
The patent family extends to the US, Europe, and China, providing broad international coverage.
5. What are the risks of patent invalidation?
Prior art disclosures or failure to demonstrate inventive step during prosecution could threaten patent validity.
References
[1] Patent Office Japan. (2015). JP2015110575A. Patent document.
[2] WIPO. (2016). International Patent Application WO2016023456.
[3] European Patent Office. (2017). EP3245678.
[4] Li, X., & Nakagawa, K. (2018). Patent analysis in chemical and pharmaceutical fields. Int J Patent Research, 12(4), 245–259.
