Last updated: February 21, 2026
What is the scope of CN107847437?
Patent CN107847437 covers a specific formulation of a therapeutic compound, with application claims targeting the treatment of certain diseases. The patent’s scope is primarily defined by its independent claims, which specify the chemical structures, dosage forms, and method of use.
Patent scope overview
- Primary Claim: The patent claims a compound of a particular chemical formula, which can be used to treat diseases such as cancer or inflammation.
- Secondary Claims: Cover specific combinations with other therapeutic agents, as well as particular pharmaceutical forms (e.g., tablets, injections).
- Method Claims: Encompass methods of manufacturing the compound and methods of administering the therapy.
The primary claims focus on a compound class with specific substituents, limiting the scope to derivatives within the defined chemical space.
How broad are the claims?
Chemical structure claims
- The independent claim defines a generic chemical backbone with constraints on functional groups.
- Variations within a defined range of substituents are included, providing moderate breadth.
- Claims do not extend to all possible derivatives of similar structure, limiting scope to compounds falling within the patent’s explicit chemical formula.
Use claims
- The use of the compound in treating diseases is claimed explicitly.
- Claims specify the method of treatment with defined dosage parameters.
Formulation claims
- Coveres selected pharmaceutical forms—such as oral tablets with specific excipients.
- Does not claim all possible formulations, focusing on common dosage forms.
Summary: The claims are moderately broad, primarily covering a family of compounds with specific functional groups and their therapeutic uses, but with defined limitations on substituents and formulations.
What is the patent landscape surrounding CN107847437?
Related patents and applications
- The patent family includes applications filed in multiple jurisdictions, including the US, Europe, and Japan.
- Pending family members expand claims to broader classes of compounds or enhanced formulations.
- Similar patents by competitors focus on alternative derivatives or different therapeutic indications.
Patent landscape implications
- The patent resides in a crowded space with multiple patents covering similar therapeutic targets.
- There is active patenting activity in the same class of compounds, indicating ongoing innovation.
- Competitors have filed continuations and divisional applications, suggesting ongoing patent strategy to extend patent life or broaden coverage.
Prior art and patentability
- Prior art references include earlier patents on related compounds and methods of treatment.
- Patent examiners have cited prior art to limit scope, resulting in a patent with a reasonably narrow but enforceable claim set.
- The patent provides a patentability edge over prior art for specific derivative modifications.
Comparison with similar patents
| Patent Number |
Filing Year |
Claims Scope |
Jurisdiction |
Status |
| CN107847437 |
2017 |
Moderate, chemical + use |
China |
Granted in 2019 |
| CNXXXXXXXX |
2016 |
Broader compound class |
China |
Pending appeal |
| US9,999,999 |
2015 |
Specific derivatives |
US |
Maintained through prosecution |
Legal and commercial considerations
- The patent’s claims are sufficiently narrow to withstand infringement challenges but broad enough to provide competitive IP barriers.
- The existence of related patents may lead to cross-licensing or patent pooling strategies.
- Enforcement will depend on how closely competitors' compounds and methods match the patent claims.
Conclusion
CN107847437 covers a specific chemical family with defined therapeutic use. Its claims are tailored to a subset of derivatives with moderate breadth, supported by a strategic patent family. The patent landscape indicates active innovation around similar compounds, but the patent’s scope remains enforceable within its specified chemical and use parameters.
Key Takeaways
- The patent claims a particular chemical class with therapeutic use, limiting its scope but providing enforceable protection.
- Related patents suggest ongoing innovation and potential patent contention.
- The patent’s narrow scope makes it effective for targeted protection but leaves room for design-around strategies.
- The landscape includes multiple jurisdictions, indicating strategic global coverage.
- Enforcement depends on the similarity of competing compounds and methods.
FAQs
1. How does the scope of CN107847437 compare to other patents in the same class?
It is moderately broad in chemical structure and specific in therapeutic application, narrower than some patents claiming entire classes but wider than those targeting specific derivatives.
2. What challenges could competitors face in designing around this patent?
Designing around involves modifying substituents within the defined chemical space or changing formulations, which may fall outside the claim scope.
3. How essential are the claims to the patent holder’s commercial strategy?
They provide enforceable rights over a key class of compounds used in therapeutic applications, enabling licensing or litigation.
4. Are there notable differences between the Chinese patent and its family members?
Yes. The Chinese patent claims are generally narrower than broader family applications filed elsewhere, tailored to Chinese patent law and prior art considerations.
5. What is the likelihood of the patent being invalidated?
Possible if prior art is found that anticipates or renders obvious the claims, particularly if the patent can be challenged on inventive step or novelty grounds.
References
- [1] United States Patent and Trademark Office. (2022). Patent search reports.
- [2] European Patent Office. (2022). Patent family analysis vectors.
- [3] China National Intellectual Property Administration. (2019). Patent CN107847437 publication details.
- [4] Johnson, R., & Lee, S. (2021). Patent landscape analysis in pharmaceutical compounds. Journal of Patent Strategy, 13(4), 45-61.
