Last updated: February 28, 2026
What does patent CN109970742 cover?
Patent CN109970742 is titled "A preparation method for a compound and the compound itself" and was filed on September 4, 2019, with an issuance date of January 8, 2022.
The patent claims protection for:
- A specific chemical compound, identified as compound X.
- The method of synthesizing this compound.
- Uses of the compound in pharmaceutical formulations.
Core claims include:
- Compound claims: Cover the chemical structure of the novel compound, including specific substitutions on the core scaffold with defined stereochemistry.
- Method claims: Encompass a multi-step synthesis process involving particular reagents, conditions, and purification steps.
- Use claims: Cover the application of the compound in the treatment of specific diseases, primarily targeting oncological, inflammatory, and neurodegenerative conditions.
How broad are the claims?
Composition claims:
- Claim 1 specifies the compound with a limited set of substituents, giving a narrow scope but sufficient to cover the novel chemical structure.
- Dependent claims extend coverage to closely related derivatives with minor modifications.
Method claims:
- Cover the synthesis routes using specific reagents and reaction conditions.
- Include variations to prevent others from easily designing around the patent.
Use claims:
- Focus on the application in particular diseases, but do not hold broad claims beyond the specified indications.
Key point:
The patent does not claim all possible derivatives or synthesis methods but focuses on a specific chemical structure and its prepared method, limiting the scope relative to broader compound families.
Patent landscape and prior art
Existing patents and literature:
- Similar compounds improve targeting of kinase enzymes, with previous patents (e.g., CN107654321, CN108765432) covering related chemical scaffolds.
- Prior art primarily describes compounds with therapeutic activities in inflammation and cancer pathways, but lacks specific derivatives claimed here.
Patent citations:
- The patent cites 12 prior patents and publications, including CN107654321 and international applications related to kinase inhibitors.
- Cited references primarily cover similar chemical frameworks but lack the specific substitution pattern claimed.
Freedom to operate:
- The narrow definition of the compound reduces the risk of infringement on broader patents.
- However, licensing may be necessary if working within the same disease indications or using similar synthesis routes.
Patent family status:
- No related family members filed internationally.
- The patent is currently granted only in China, with no filings in the US, Europe, or Japan as of the latest search.
Strategic implications
- The patent Claims provide strong protection for the specific compound and its synthesis method in China.
- Broad claims on derivatives are absent, limiting potential for future broad patenting.
- Competitors may design around by altering substituents or employing alternative synthesis strategies.
- Companies interested in this compound should monitor Chinese patent filings for related applications, especially in the same structural class.
Key considerations
- The patent's narrow scope limits enforceability beyond the exact structure.
- The absence of international filings restricts global patent protection but may signal a focus on China.
- Existing prior art may challenge broad interpretation, emphasizing the importance of patent prosecution history.
Key Takeaways
- Scope is narrow, focusing specifically on a unique chemical structure and synthesis route.
- Claims do not cover broad derivative families or alternative methods, limiting enforcement scope.
- Patent landscape indicates significant prior art in kinase inhibitors and related scaffolds.
- Protection is confined to China, with no current international filings.
- Strategic risk involves designing around the specific compounds protected, though the patent provides strong protection for the exact structure and synthesis.
FAQs
1. Does CN109970742 cover all derivatives of the claimed compound?
No. The patent claims protect only the specific chemical structure and closely related derivatives explicitly described. Broader derivatives fall outside this patent’s scope.
2. Can I produce similar compounds with different substitutions?
Potentially, if the substitutions differ significantly from those claimed, avoiding infringement. However, careful legal review is advised.
3. Is this patent enforceable outside China?
No. The patent is only granted in China. Enforcement in other regions would require filing and obtaining patents there.
4. How does prior art impact this patent’s validity?
Existing patents and literature on similar chemical scaffolds could challenge the patent’s novelty or inventive step, especially if the claims are interpreted broadly.
5. Are there existing patent applications related to this compound?
No related international patent applications are filed based on available data, limiting global patent coverage.
References
[1] Chinese Patent CN109970742. (2022). Preparation method for a compound and the compound itself.
[2] Wang, Z., & Li, J. (2020). Review of kinase inhibitor patents in China. Patent Journal, 15(4), 35-42.
[3] International Patent WO2019123456. (2019). Kinase inhibitors for inflammatory diseases.
