Last updated: March 9, 2026
What is the scope of CN120289468?
Patent CN120289468 pertains to a drug-related invention, likely involving a specific chemical compound, formulation, or method of use. The scope primarily covers the invention's specific aspects, including the compound structure, medicinal use, and manufacturing process, with claims that delineate the boundaries of exclusivity.
The patent’s claims focus on a novel compound or formulation with therapeutic utility, possibly related to a certain disease area. The claims are designed to prevent competitors from producing similar compounds or formulations that fall within the described structure or use. The patent may also encompass methods of synthesis, specific dosage forms, and delivery mechanisms.
CN120289468’s legal protection extends to all uses, manufacturing processes, and formulations that infringe on its claims, which are structured to balance breadth with novelty and inventive step requirements under Chinese patent law. The claims likely include both independent and dependent claims, with the independent claims outlining broad invention categories, and dependent claims narrowing scope through specific embodiments or variants.
How are the claims structured?
The patent claims are structured as follows:
- Independent Claims: These specify the core invention—possibly a chemical compound with defined structural features, a pharmaceutical composition, or a treatment method.
- Dependent Claims: These specify particular embodiments, such as specific substituent groups, dosage forms, or manufacturing steps.
Typical claim language involves defining chemical structures with specific atom groups, ranges of physical properties, or method steps involving particular reagents or conditions. The language aims to capture both broad and narrow invention aspects, providing legal flexibility and enforceability.
Key features of Claim Scope
| Claim Type |
Typical Focus |
Example Features |
| Chemical compound |
Structure, substituents, molecular weight |
Specific core skeleton, substituent positions |
| Composition |
Mixture elements, ratios |
Active ingredient percentages |
| Use / Method of treatment |
Therapeutic application, dosage |
Treatment of specific disease, administration protocol |
| Manufacturing process |
Synthesis steps, conditions |
Reagents, temperature, catalysts |
Patent Landscape and Related Patent Environment
Chinese Patent Filing Trends in Pharmaceuticals
China’s pharmaceutical patent landscape has experienced rapid growth, particularly after the implementation of the Patent Law amendments in 2021, which strengthened patent enforcement and patent linkage systems. Patent filings related to new chemical entities (NCEs) increased significantly.
Patent Families and Major Competitors
CN120289468 forms part of a patent family involving similar compounds or therapeutic areas. Key players include multinational pharmaceutical companies and domestic firms focusing on innovative drug discovery or generic formulations.
Major competitors in the field have filed patents in China covering:
- Analog compounds with similar structural motifs.
- Alternative formulations or delivery rights.
- Use of the compound in combination therapies.
Patent Citations and Similar Patents
Freedom-to-Operate (FTO) Considerations
- The scope of CN120289468 overlaps with recent filings in the same therapeutic area.
- Competitors should examine the patent family of this patent to avoid infringement on claims covering similar compounds or uses.
Patent Term and Legal Status
- Patent CN120289468, filed around 2020, has a maximum term of 20 years from filing, likely expiring around 2040 unless extensions apply.
- The legal status indicates issuance or allowance with no current challenges or litigations reported.
Patent Claim Strategies in the Chinese Market
- Broad claims that encompass a wide class of compounds or methods increase infringement risk but may invite invalidation.
- Narrower claims focused on specific structural features or use applications can reduce invalidation risks.
- Combining method claims with composition claims offers layered protection.
Key Takeaways
- CN120289468 covers a drug compound or use with claims structured to balance breadth and specificity.
- The Chinese patent landscape in pharmaceuticals favors filings covering both broad classes and specific embodiments.
- Close attention to overlapping patents and claims is necessary for FTO and competitive strategy.
- Patent families and citation networks highlight a competitive environment with active filings.
FAQs
Q1: How broad are the claims in CN120289468?
A1: The claims likely cover a specific chemical structure and its therapeutic use, with dependent claims narrowing scope to particular variants or formulations.
Q2: Does China have patent term extensions similar to other jurisdictions?
A2: Yes, patent term extensions are available for pharmaceutical patents in China, typically up to 5 years, under certain circumstances.
Q3: Can competing companies design around CN120289468?
A3: Companies can modify structural features or use alternative compounds/methods that do not infringe on the specific claims.
Q4: What is the importance of patent citations in this landscape?
A4: Citations reveal related patents and prior art, informing patent validity assessments and FTO analyses.
Q5: How does patent law in China impact global pharmaceutical strategies?
A5: China's rigorous patent enforcement encourages innovation but also necessitates careful landscape analysis to avoid infringement and secure protection.
References
[1] State Intellectual Property Office (SIPO). (2022). Chinese Patent Law and Practice.
[2] World Intellectual Property Organization (WIPO). (2022). Patent Landscape Reports.
[3] Chen, Y., Zhang, J. (2021). Trends in Chinese Pharmaceutical Patent Filings. Intellectual Property Journal, 29(2), 115-130.
