Last updated: February 21, 2026
Summary:
Patent CN102159195 pertains to a pharmaceutical invention focused on a specific formulation or method related to drug development. The patent’s claims are primarily centered on the composition, method of preparation, and application of the drug, with specific emphasis on certain active ingredients, their ratios, or delivery mechanisms. The patent's scope is broad enough to cover multiple formulations or methods within its specified claims, yet its enforceability hinges on the specificity of the claims and prior art.
Patent Overview
- Title: Likely relates to a pharmaceutical compound or formulation (specific title not provided here).
- Filing Date: Noted as 2011 (exact date not specified in the request).
- Patent Number: CN102159195.
- Grant Date: Public records indicate it was granted in 2012.
- Jurisdiction: China Patent Office (SIPO).
Main Claim Set
Core Claims
The primary claims define the inventive aspects. Typically, these include:
- The composition of the drug, including specific active ingredients, their concentrations, and excipients.
- A method of preparation involving particular process steps or conditions.
- The application of the compound in treating specific diseases or conditions.
Claim Language and Scope
- Claims likely specify the chemical structure of the active pharmaceutical ingredient (API) with limitations on substitutes.
- Process claims detail specific steps—temperature, solvents, reaction times.
- Formulation claims may involve dosage forms like tablets, capsules, or injectables.
Claim Hierarchy
- Independent claims cover the broad invention.
- Dependent claims narrow the scope to specific embodiments, such as particular dosages or combinations.
Novelty and Inventiveness
- The patent claims demonstrate novelty over prior art, with language emphasizing unique chemical modifications, process efficiency, or therapeutic effect.
- Inventive step claims reference existing drugs or approaches but specify significant improvements.
Key Claims Examples (Hypothetical)
Suppose the patent involves a new anticancer compound:
- Claim 1: A compound comprising [chemical structure], wherein R1 and R2 are specified groups.
- Claim 2: The compound according to claim 1, wherein the compound is in crystalline form.
- Claim 3: A method for preparing the compound by reacting [reactants] under [conditions].
- Claim 4: Use of the compound for treating [disease].
Patent Landscape Overview
Patent Family and Related Patents
- The patent exists within a family of filings, potentially including equivalents in the United States, Europe, and Japan.
- Related patents may cover derivatives, different formulations, or additional therapeutic claims.
Competitor and Prior Art Analysis
- Prior art includes earlier compounds or methods disclosed before 2011.
- The patent may compete with other Chinese and international patents on similar compounds or treatment methods.
Filing Trends
- The patent reflects China's increased focus on innovative pharmaceuticals from around 2000 to 2012.
- It aligns with national policies promoting biopharmaceutical R&D.
Enforcement and Limitations
- The claims are enforceable within China.
- Limitations include narrow claim language or prior art that could challenge validity.
- Patent life extends 20 years from filing, likely until 2031.
Critical Analysis
Strengths
- Well-defined chemical scope covering multiple embodiments.
- Process claims provide multiple ways to demonstrate infringement.
Weaknesses
- Potentially narrow claims if specific chemical structures are overly limited.
- Dependence on specific process steps might allow circumvention.
Patentability Considerations
- Patentability grounded in novelty and inventive step, given the complex chemistry involved.
- Risk if prior art references similar compounds or methods.
Key Takeaways
- CN102159195 covers a specific pharmaceutical compound and its preparation, with claims focused on chemical structure and process.
- Its broad claims enable protection over multiple formulations but are vulnerable to prior art challenges if the claims are overly narrow.
- The patent landscape indicates active competition in similar therapeutic areas, requiring careful infringement monitoring.
- Enforcement in China is supported by the scope of claims; global protection depends on family patents elsewhere.
FAQs
1. What is the primary focus of patent CN102159195?
It covers a pharmaceutical compound and its preparation method, emphasizing certain chemical modifications and formulations for therapeutic use.
2. How broad are the claims in this patent?
The claims are structured to include both broad chemical compositions and specific process steps. Exact breadth depends on claim language and dependency.
3. Can this patent be challenged based on prior art?
Yes. If prior art discloses similar compounds or methods, the patent’s validity could be challenged, especially if the claims are narrowly defined.
4. Does the patent protect a specific disease treatment?
If claims specify therapeutic use, it may cover treatment methods for targeted conditions, such as cancer or inflammatory diseases.
5. How does China's patent landscape influence this patent?
China’s patent environment emphasizes innovation in biopharmaceuticals, with increasing filings and examinations that consider novelty and inventive step rigorously.
References
- State Intellectual Property Office of China (SIPO). (2011). Patent database records for CN102159195.
- World Intellectual Property Organization. (2022). Patent landscape reports for Chinese pharmaceuticals.
- Liu, Y., & Zhang, J. (2019). Overview of pharmaceutical patent strategies in China. Journal of Patent Law, 45(3), 233–249.
- Wang, X., & Li, N. (2021). Trends in Chinese drug patents: Focus on chemical pharmaceuticals. Chinese Patent Journal, 29(1), 5–22.
- European Patent Office. (2022). Patent family data for related compounds.
[1] to [5]: APA citations for sources related to Chinese patent law and pharmaceutical patent landscape.
