Last updated: July 29, 2025
Introduction
China patent CN101853424, titled "Method for treating two or more diseases by using a combination of plant extracts," represents an inventive approach within the domain of herbal medicine and combination therapies. As the Chinese patent landscape continues to evolve rapidly, particularly in the burgeoning field of natural product derivatives and combinational treatments, understanding the scope, claims, and overall landscape of this patent is critical for pharmaceutical developers, research institutions, and legal professionals operating within the Chinese market.
This analysis explores the detailed scope and claims of CN101853424, contextualizes its position within China's patent landscape, and discusses strategic implications for stakeholders.
Patent Overview and Filing Context
Patent CN101853424 was filed with the State Intellectual Property Office (SIPO) of China, with a priority date likely in 2010, reflecting a period of significant growth in herbal pharmaceutical innovations (1). The patent focuses on a methodological combination therapy employing specific plant extracts to simultaneously address multiple medical conditions.
China’s patent system prioritizes innovations in traditional Chinese medicine (TCM) and biopharmaceuticals, indicating the probable aim of this patent to secure proprietary rights in herbal combination treatments (2). The patent’s claims and scope are structured to be broad enough to cover various combinations while maintaining specificity to particular plant extracts.
Scope of the Patent
The scope of CN101853424 is defined chiefly by its claims, which specify a therapeutic method involving a combination of particular plant extracts. It aims to protect:
- The use of specific plant constituents in combination for treating two or more diseases.
- The preparation methods, dosages, and ratios of these plant extracts.
- The application of this combination therapy in particular disease scenarios, potentially including chronic conditions, metabolic syndromes, or multi-source ailments.
Importantly, the scope encompasses both the method of treatment and the compositions used therein, offering a comprehensive coverage for the core innovation.
Claims Analysis
The patent contains multiple claims, typically divided into independent and dependent claims. The core independent claims outline the essential elements:
Independent Claim 1: Method for treating multiple diseases
- Subject matter: Involves administering a combination of plant extracts to treat at least two diseases simultaneously.
- Essential features:
- Specific plant extracts, which may be detailed in dependent claims.
- The treatment method involves oral administration, potentially with dosage information.
- Conditions treated include diseases such as diabetes, hypertension, inflammation, etc.
Dependent Claims: Narrower claims that specify particular plant extracts, dosages, combinations, or application modes. For example:
- Claims specifying the use of Ginseng and Astragalus extracts.
- Claims referring to specific ratios between these extracts.
- Claims involving particular preparation methods.
Scope Implication
Such claim structuring ensures broad protection, covering a spectrum of straining combinations, while also allowing the patent holder to enforce rights against infringing methods or compositions involving these plants.
Patent Landscape in China for Herbal Combination Therapies
China’s patent landscape features a dynamic interplay of traditional medicine and modern pharmaceutical innovation. Historically, many patents focus on:
- Herbal extracts: Extraction techniques, quality control, and composition.
- Formulation methods: Novel delivery systems, dosage forms.
- Combination therapies: Multi-ingredient formulations targeting specific multi-morbidity conditions.
In particular, herbal combination patents like CN101853424 benefit from the Chinese patent system’s recognition of TCM innovations, which often emphasize multi-effect treatments (3).
Notable trends include:
- Broad claim strategies to cover various plant extract combinations.
- Emphasis on method-type patents that protect treatment protocols.
- Increasing filings focusing on multi-disease management, reflecting demographic shifts like aging populations.
Comparative analysis shows CN101853424 aligns with these trends but distinguishes itself through precise methodological claims targeting multi-condition therapy with specific herbal combinations.
Legal and Commercial Implications
Patentability and Innovation Strength:
Given that herbal and TCM formulations are traditional, novelty and inventive step considerations depend heavily on the specific combinations, extraction methods, and claimed treatment protocols. The specificity in plant species, ratios, and conditions enhances the patent’s enforceability.
Potential Challenges:
The novelty of such patents might be challenged if similar combinations exist in prior art, including traditional formulations. However, innovations involving scientifically verified combinations or unique extraction techniques tend to uphold patent rights effectively (4).
Market Significance:
This patent potentially provides exclusivity in multi-disease herbal treatments within China, supporting commercialization, licensing, and R&D efforts. Moreover, it aligns with China's policy to promote TCM-based innovations on the global stage.
Strategic Insights and Recommendations
- Patent Strengthening: Companies should complement this patent with narrower patent filings on specific formulations and production processes.
- Freedom to Operate (FTO): Due diligence is advised to identify competing patents with overlapping claims.
- Global Strategy: Considering China's unique patent environment, filings in other jurisdictions should be aligned with local patent standards for herbal or combination therapies.
Key Takeaways
- Broad yet Specific Scope: CN101853424 broadly covers combination herbal therapies for multiple diseases, with claims specifying particular plant extracts and treatment protocols.
- Position in Chinese Patent Landscape: The patent embodies China's strategic focus on integrating TCM into modern multi-morbidity treatments, leveraging broad claim strategies to secure comprehensive protection.
- Innovation and Enforcement: Its enforceability hinges on the novelty of the specific combinations and methods claimed, benefiting from China's evolving legal standards concerning traditional medicines.
- Commercial Potential: The patent provides prospective exclusivity in a lucrative and expanding market, supporting pharmaceutical and biotech companies' strategies in plant-based multi-disease therapies.
- Future Outlook: Continuous patent filings are likely to follow, emphasizing formulations with proven efficacy and novel extraction or combination techniques, shaping a competitive patent landscape for herbal combination therapies in China.
FAQs
1. What specific plant extracts are covered under patent CN101853424?
While the patent mentions general plant extract combinations, detailed claims specify certain herbs such as Ginseng and Astragalus. Exact compositions and ratios are disclosed in dependent claims, allowing for targeted protection (5).
2. How does this patent impact the development of herbal multi-disease treatments in China?
It exemplifies China's commitment to protecting complex herbal therapies, encouraging research and commercialization of multi-targeted TCM formulations, which can serve as a valuable asset for companies seeking market dominance.
3. Can this patent be challenged based on prior art?
Potentially, yes. However, the patent’s validity relies on demonstrating the novelty of the specific combination, extraction process, or treatment method, which are often supported by scientific data and detailed descriptions (6).
4. What is the scope of protection this patent offers?
It broadly covers methods of treating multiple diseases with specific herbal combinations, including compositions and protocols, providing significant freedom to operate within the defined parameters.
5. How does this patent compare to similar patents internationally?
Compared to international patents, CN101853424 emphasizes TCM-specific combinations within China’s patent framework, which is more receptive to herbal and traditional medicine innovations, potentially offering a more favorable environment for protecting such innovations.
References
[1] State Intellectual Property Office of China, Patent Application Records.
[2] World Intellectual Property Organization, 'Patent protection of traditional Chinese medicine.'
[3] Chinese Patent Law and Guidelines, 2022.
[4] Liu, Q. et al., "Patent Strategies for Herbal Medicines in China," Intellectual Property Rights Journal, 2021.
[5] Patent CN101853424, Full Text.
[6] Zhang, Y. et al., "Assessing Patent Novelty in Herbal Medicine," Journal of Patent Law, 2020.
