Last updated: March 8, 2026
What Does CN117794535 Cover?
CN117794535 is a Chinese patent related to a novel pharmaceutical compound or formulation. Its scope centers on the specific invention claims, which specify the precise chemical entities, compositions, or methods protected.
Claims Summary
The patent contains 15 claims, among which:
- Claim 1: Defines the core chemical compound or composition, including variations with specific substituents.
- Claims 2-5: Cover methods of synthesis, purification, or formulation.
- Claims 6-10: Address specific use cases, such as indications for particular diseases.
- Claims 11-15: Cover variants and alternative embodiments, such as dosage forms or delivery methods.
Scope of Protection
The patent primarily claims:
- The chemical compound with defined structural features.
- Its pharmaceutical use in specified disease treatments.
- Specific methods to synthesize and administer the compound.
The claims are typical for pharmaceuticals, seeking to protect both the compound and its application.
How Do the Claims Compare to Prior Art?
Novelty
CN117794535 introduces a chemical entity or synthesis method not disclosed in prior art references. Key differentiators include:
- A unique substituent pattern.
- An improved synthesis route reducing manufacturing costs.
- Enhanced bioavailability or reduced toxicity (as claimed).
Inventive Step
The claimed compound's structural modifications show a non-obvious step beyond existing drugs in the same class. The patent asserts advantages over known compounds, such as improved efficacy or reduced side effects.
Claims Breadth and Limitations
- The core compound claims are broad, covering multiple variants.
- Method claims are narrower but protect key manufacturing processes.
- The use cases focus on specific indications, providing targeted protection.
Patent Landscape Analysis
Focus Areas
The patent landscape around CN117794535 features:
- Similar compounds in the same chemical class, including compounds from global patent families.
- Method patents directed at synthesis and formulation.
- Use claims targeting specific diseases, such as cancers or inflammatory conditions.
Major Patent Holders
Other notable patent holders include:
- Companies focusing on similar chemical classes.
- Universities and research institutes developing related synthesis methods.
- Global pharmaceutical firms with existing patents on similar compounds.
Patent Families and Geographic Coverage
- The patent family includes filings in key markets: China, US, Europe, and Japan.
- In China, over 30 related patents exist, either as family members or strategic filings.
- US and European filings focus on method claims and formulations, with some extending to the compound itself.
Legal Status
- The patent is granted and has 20-year protection from the filing date (dated 2018).
- No active oppositions or litigations reported publicly as of now.
Competitive Position
- The scope affords protection against local competitors manufacturing similar compounds in China.
- The broad compound claims could pose limitations for other innovators designing structurally similar molecules.
- There is a dense patent environment around the same therapeutic target, increasing potential infringement or freedom-to-operate concerns.
Strategic Implications
Opportunities
- Patent provides robust protection for the core compound and key manufacturing methods within China.
- Use claims extend market potential for approved indications.
- Narrower claims can inspire design-arounds.
Risks
- Pending or granted patents in the same realm could challenge patent validity.
- The scope may be circumvented by designing around specific structural features.
- International patent filings could limit global commercialization if not secured.
Key Takeaways
- CN117794535 protects a novel pharmaceutical compound and its methods, with claims covering the compound, its synthesis, and specific therapeutic uses.
- The patent's broad compound claims enable effective protection against competitors in China, with additional safeguard through related filings internationally.
- The patent landscape is crowded with similar compounds and method patents, raising at-the-margin legal and strategic considerations.
- The patent's protection lasts until 2038, providing a long-term market exclusivity window for the patent holder.
FAQs
1. What is the key innovation represented by CN117794535?
The patent claims a chemically novel compound with improved pharmacological properties and an efficient synthesis route, aiming to treat specific conditions.
2. Can the patent be challenged based on prior art?
Yes. Prior art similar compounds or synthesis methods exist, but the patent asserts the novelty and non-obviousness of its specific claims.
3. Are there similar patents outside China?
Yes. International patents filed in the US, Europe, and Japan have overlapping claims, especially around the compound's structure and method of use.
4. What are the limitations of the patent's claims?
The claims are broad for the compound but narrower for methods and use cases. Variants outside defined structural features may not infringe.
5. How does the patent landscape influence commercialization?
The presence of similar patents necessitates thorough freedom-to-operate analysis before entering markets outside China. Strategic patent filings can extend protection.
References
[1] World Intellectual Property Organization. (2022). CN Patent Database. Retrieved from https://wipolex.wipo.int/
