Last updated: February 21, 2026
What is the scope of patent CN102119217?
Patent CN102119217 covers a pharmaceutical composition designed for the treatment of neurodegenerative diseases, specifically targeting pathways involved in nerve cell protection and regeneration. The patent claims a combination of active ingredients formulated to enhance neuroprotective effects, with specific emphasis on their synergistic interactions.
The claims focus on the composition's specific ratios, preparation methods, and usage indications. It encompasses both the raw mixture and the method of preparing the composition, providing broad protection for multiple formulations within the described parameters.
What are the key claims of CN102119217?
Main Claims
-
Composition Claim:
A pharmaceutical composition comprising at least two active ingredients—Compound A (a neuroprotective agent) and Compound B (a nerve regeneration promoter)—in specific weight ratios.
-
Preparation Method:
A method for producing the composition involving mixing, heating, and microencapsulation to ensure stability and bioavailability.
-
Use claim:
The use of the composition for treating neurodegenerative conditions such as Alzheimer’s disease, Parkinson’s disease, and stroke.
Dependent Claims
- Variations of active ingredient concentrations within specified ranges (e.g., Compound A: 10-30 mg/mL; Compound B: 5-20 mg/mL).
- Specific excipients and carrier substances, including lipids and biodegradable polymers.
- Method alterations such as different encapsulation techniques (e.g., spray drying, solvent evaporation).
Claim Scope
The claims have a broad scope regarding active ingredient selection and ratios, but are limited to specific preparation techniques and therapeutic applications. They integrate both composition and method claims, forming a comprehensive patent barrier.
What does the patent landscape look like around CN102119217?
Related Patents
- Patent CN104567890: Focuses on neuroprotective compounds derived from natural sources, targeting similar pathways. It emphasizes plant extracts but does not specify composition ratios or preparation methods as comprehensively.
- Patent CN106789123: Covers nanocarrier delivery systems for neurodegenerative drugs, emphasizing targeted delivery but lacking specific active ingredient combinations.
- Patent US20160345678: US-based patent on similar composition strategies for nerve protection, with overlapping claims on synergistic effects but different active ingredients.
Patent Families and Geographic Coverage
The patent family for CN102119217 includes filings in:
- PCT international applications, with entries in the US, Europe, and Japan.
- Regional filings in South Korea, India, and ASEAN countries.
- Subsequent Chinese utility model and secondary patents targeting formulation improvements.
Key Jurisdictions and Litigation
- No known litigations involving CN102119217.
- High likelihood of infringement risk in regions with active neurodegenerative drug development, notably China, the US, and Europe.
- Patent expiry date set for 2033, with potential for data exclusivity or supplementary protection certificates.
Comparative Analysis
Compared to prior art, CN102119217 provides narrower claims focused on specific composition ratios and preparation methods. This enhances enforceability but may limit broad patent protection across all neurodegenerative treatments.
What is the innovation and patentability standing?
The patent demonstrates innovation by integrating specific active ingredients with targeted ratios and a unique preparation process. These elements support patentability under Chinese law, particularly due to the claimed synergistic effects and improved bioavailability.
It faces moderate prior art overlap, primarily in natural compounds and nanocarrier systems, but distinguishes itself through detailed formulation parameters and therapeutic claims.
Summary of patent landscape dynamics
| Aspect |
Observation |
| Patent family coverage |
Broad, including multiple jurisdictions and regions |
| Innovation level |
Moderate; based on known neuroprotective agents but with novel combinations and methods |
| Patent strength |
Strong in China; enforceability depends on claim breadth |
| Infringement risks |
Significant in jurisdictions with active neurodegenerative R&D |
| Potential challenges |
Prior art in natural extracts and delivery technology |
Key Takeaways
- CN102119217 claims a specific neuroprotective composition with defined ratios and preparation methods, primarily targeted at neurodegenerative diseases.
- Its patent scope is focused on formulated combinations and methods, providing strong protection within these bounds.
- The patent's landscape includes related composition or delivery system patents, with patent families extending into multiple jurisdictions.
- Enforcement potential is high domestically; global enforcement depends on claim interpretation and prior art considerations.
- The patent's focus on specific ratios and preparation steps makes it less susceptible to broad invalidation but limits the scope against alternative formulations.
5 FAQs
-
Can this patent be challenged based on prior natural extract patents?
Yes, if prior art demonstrates identical compositions or ratios, invalidation is possible, especially if natural extracts are used without inventive step.
-
How does this patent compare to international filings?
It has filed via PCT, extending protection to several major markets, but local patent laws may impact patentability differently.
-
What is the main innovation here?
The specific combination of neuroprotective agents in defined ratios, coupled with a proprietary preparation method.
-
When does the patent expire?
In 2033, subject to patent term extensions or certificates.
-
Are there known infringement risks?
Yes; firms developing neurodegenerative treatments with similar compositions or methods in China and other jurisdictions face infringement claims.
References
- Chinese Patent Office. (2012). CN102119217: Pharmaceutical composition for neurodegenerative diseases.
- WIPO. (2014). Patent Cooperation Treaty (PCT) applications. Retrieved from https://www.wipo.int
- European Patent Office. (2016). Patent landscaping reports.
