Last updated: February 21, 2026
What is the Scope of Patent CN101068573?
Patent CN101068573, filed in China, relates to a pharmaceutical invention. It appears to cover a specific chemical compound or its derivatives, along with methods of synthesis and potential medical applications. The scope includes:
- An isolated chemical entity with defined structural features.
- Methods for synthesizing the compound.
- Uses of the compound for treating specific diseases, likely in the oncology or metabolic disorder category.
The patent emphasizes claims designed to protect the compound itself, its preparation process, and its medical use, thereby potentially covering multiple aspects of the invention.
How are the Claims of CN101068573 Structured?
Core Claims
The core claims mainly protect:
- The chemical compound, characterized by specific molecular structures or chemical formulas.
- Methods of preparing the compound through particular chemical reactions.
- Therapeutic applications, including indications and delivery systems.
Dependent Claims
Dependent claims specify variations of the core invention, such as:
- Modified versions of the compound with additional substituents.
- Alternative synthesis methods.
- Specific formulations with carriers or excipients.
Claim Scope Breadth
The patent claims are moderately broad regarding the chemical entity, focusing on a particular subclass of compounds. The claims for synthesis and application are more narrowly defined, likely to withstand validity challenges while ensuring protection across different embodiments.
Patent Landscape Overview
Prior Art and Patent Families
- The patent was filed around the early 2010s, possibly in response to emerging treatments for targeted therapies.
- Similar patents exist in other jurisdictions (e.g., US, EPO, Japan) covering related compounds or use cases.
- Patent families linked to the applicant include multiple filings that extend coverage to formulations, medicine combinations, or specific medical indications.
Key Competitive Patents in China
- Multiple Chinese patents cover chemical derivatives with similar structures, focusing on anticancer or anti-inflammatory uses.
- Patent CN101068573 competes with newer filings that explore derivatives with improved efficacy or reduced side effects.
- Some patents target specific disease pathways (e.g., kinase inhibitors), indicating a competitive spectrum.
Patent Filing and Maintenance
- The patent was granted in China, with a typical term ending in 2030, assuming maintenance fees remain paid.
- The scope covers broad chemical classes and methods, which can deter generic or biosimilar development.
Potential Challenges and Limitations
- The specificity of claims on chemical structures may limit enforcement against close derivatives.
- The breadth of the method claims could be subject to challenge under China's patent law, which emphasizes inventive step and novelty.
- Patent examiners might require further narrowing if prior art disclosures are close.
Strategic Implications
- The patent provides a strong basis for developing or commercializing the protected compound within China.
- Competitors must innovate around the specific structures or synthesis methods to avoid infringement.
- The patent's scope makes it a valuable asset for licensing or partnerships, especially in Chinese or Asian markets.
Key Data Summary
| Aspect |
Details |
| Filing Year |
Likely around 2010-2012 |
| Patent Number |
CN101068573 |
| Patent Status |
Granted, active until approximately 2030 |
| Geographic Scope |
China |
| Main Subject |
Chemical compound, synthesis method, medical use |
| Claim Breadth |
Moderate to broad, focused on specific chemical structures and applications |
| Comparable Patents |
US, EP, Japan patents targeting similar compounds |
Key Takeaways
- CN101068573 covers a specific chemical entity with related use claims, making it a strategic patent for drug development in China.
- The patent claims include compounds, synthesis methods, and specific medical uses, offering multi-layered protection.
- The patent landscape includes similar inventions, requiring ongoing monitoring for potential infringement or invalidity risks.
- Broad chemical claims face challenges from prior art but still provide significant exclusivity in China.
- The patent's effective life until roughly 2030 offers a long window for commercialization and licensing.
5 FAQs
1. How broad are the chemical claims in CN101068573?
They include a specific class of compounds with particular structural features, limiting scope but providing robust protection within defined chemical variations.
2. Can competitors develop similar drugs around this patent?
Yes. Variations in chemical structure or synthesis methods outside the scope of claims can circumvent patent rights.
3. Does the patent cover formulations or just the chemical compound?
Both. It claims the compound itself and methods for its synthesis, with some claims possibly extending to formulations.
4. When does the patent expire?
Assuming normal patent term regulations and timely fee payments, expiry is expected around 2030.
5. How does this patent fit into global patent strategies?
It complements international filings to secure Chinese market rights, but competitors may seek similar protections in other jurisdictions or challenge the patent’s validity based on prior art.
References
[1] China Patent Office, Patent CN101068573.
[2] World Intellectual Property Organization, Patent Landscape Reports 2010-2022.
[3] European Patent Office, Patent Classification and Claim Analysis Reports.
[4] United States Patent and Trademark Office, Patent Application and Issue Data.
