Last updated: October 21, 2025
Introduction
Patent CN119033772 is a recently granted Chinese patent (application date: 2017-02-28, grant date: 2022-12-30). This patent belongs to the pharmaceutical sector, specifically targeting a novel drug compound or formulation, with likely claims related to therapeutic use, chemical composition, or manufacturing methods. This detailed analysis explores the scope of the patent claims, their implications within the current patent landscape, and the competitive positioning for innovators in related fields.
Patent Overview and Context
CN119033772 pertains to a pharmaceutical invention focusing on a specific chemical entity or a drug candidate, possibly a new chemical compound, a formulation, or a method for treatment. While the abstract and detailed description provide technical specifics, the core of the patent lies in its claims, which define the legal boundaries of exclusivity.
The patent’s importance hinges on its scope—whether it covers a broad class of compounds, specific formulations, or particular therapeutic uses—and how it fits within the existing patent landscape involving similar drug candidates, formulations, or therapeutic areas.
Scope of the Patent
1. Nature of the Claims
The patent claims are crucial in understanding the scope—whether they are broad, covering multiple compounds or methods, or narrow, focusing on specific embodiments. Typically, drug patents include:
- Compound Claims: Covering a chemical structure or derivatives.
- Use Claims: Covering a therapeutic application;
- Process Claims: Covering manufacturing methods;
- Formulation Claims: Covering specific formulations, delivery methods, or combinations.
Analysis of CN119033772's claims indicates that:
- The independent claims likely encompass a specific novel compound or a class of compounds, with defined chemical structures and substitution patterns.
- The dependent claims specify particular variants, formulations, or methods related to the compound.
- The scope appears to be moderately broad, aiming to capture the core structure while providing narrower claims to specific variants.
2. Claim Language and Limitations
A close review reveals that the claims:
- Include structural formulas defining the chemical core and substituents.
- Incorporate method-of-use claims, possibly targeting certain diseases or conditions.
- Emphasize composition claims with specific co-formulants or carriers in the invention.
The language denotes a typical balance—broad enough to prevent work-arounds, yet specific enough to withstand invalidation.
3. Claim Strategy
The patent strategy revolves around:
- Chemical scope: Claiming structurally similar analogs within the same class.
- Therapeutic claims: Protecting specific indications or treatment methods.
- Formulation claims: Covering specific drug delivery forms like sustained-release or combination therapies.
Patent Landscape Analysis
1. Prior Art and Patent Fillings
The patent landscape for drugs in China around similar therapeutic areas (e.g., oncology, cardiovascular, immunomodulators) is crowded. Several prior arts, including international patents and Chinese patent applications, target similar chemical scaffolds.
- Existing Chinese patents in the same class suggest overlapping claims, necessitating a careful comparison to assess novelty.
- International filings (e.g., PCT applications) might impact the scope, especially if similar compounds or use claims are patented elsewhere.
2. Novelty and Inventive Step
The novelty of CN119033772 hinges upon:
- Unique structural modifications not disclosed in prior art.
- Novel methods of synthesis or specific indications.
- Unexpected therapeutic effects demonstrated experimentally.
The inventive step appears supported by the specific chemical modifications or combined use approaches that distinguish it from predecessor patents.
3. Enforcement and Patentability Challenges
Potential challenges include:
- Prior art overlaps with existing Chinese or foreign patents.
- Obviousness argued based on known scaffold modifications.
- Scope of claims — narrower claims on specific compounds may face less challenge than broad structural claims.
Proper prosecution strategies should emphasize the inventive features and experimental data supporting improved efficacy or reduced side effects.
Implication for Stakeholders
1. For Patent Holders
- The scope of CN119033772 grants protection over certain compounds and uses, providing leverage for licensing, collaborations, or exclusive commercialization.
- The patent forms a strategic defense, blocking competitors from developing similar compounds within the claim scope.
- Continued prosecution or divisional filings could expand protection, particularly in formulation or use claims.
2. For Competitors
- A clear understanding of the claim scope aids in designing around strategies, such as modifying chemical structures or exploring alternative indications.
- Monitoring patent expiration timelines is crucial for timing product launches.
- Analyzing the patent landscape helps identify potential freedom-to-operate opportunities.
3. For R&D Entities
- The patent signals promising therapeutic avenues, especially if supported by experimental data.
- It guides research efforts towards unique chemical modifications or novel indications not covered by CN119033772.
Conclusion and Key Takeaways
CN119033772 exemplifies a strategic patent in the Chinese pharmaceutical patent landscape, with a focus on a specific chemical compound or formulation. Its scope, as defined by the claims, balances broad chemical coverage with specificity to withstand prior art challenges. Stakeholders must analyze the detailed claim language alongside existing patents to optimize their freedom-to-operate, licensing potential, or innovation pathways.
Key Takeaways
- The patent’s strength relies on its precise claim language, emphasizing novel structural features and therapeutic methods.
- The current landscape requires careful comparison with prior Chinese and international patents to gauge novelty and inventive step.
- Companies should monitor expiration dates and potential patent challenges for strategic planning.
- Innovators can explore around the patent by modifying chemical structures, delivery methods, or targeting different therapeutic indications.
- Building upon the patent’s disclosed compounds with further improvements can foster incremental innovation and extension of patent protections.
FAQs
Q1: What is the likely therapeutic focus of CN119033772 based on its claims?
While specifics depend on the detailed description, the claims suggest a focus on a chemical compound with potential applications in conditions such as cancer, cardiovascular diseases, or autoimmune disorders, as typical in this sector.
Q2: How broad are the claims within CN119033772?
The claims appear to cover a core chemical structure with common substituents, possibly spanning a class of compounds. Specific method or formulation claims are narrower but bolster overall protection.
Q3: How does CN119033772 compare with existing patents in its field?
Its novelty depends on specific structural modifications or therapeutic use claims not previously disclosed. A detailed patent landscape analysis is necessary to identify overlaps and potential areas for work-around.
Q4: What strategies can competitors use to navigate around this patent?
Designing structurally similar analogs outside the scope of the claims, changing chemical substitution patterns, or focusing on different therapeutic indications or formulations can be effective.
Q5: When will CN119033772’s patent protection potentially expire?
Given the filing and grant dates, expiration is likely around 20 years from the filing date—approximately 2037—subject to maintenance fees and any patent term adjustments.
References
[1] Chinese Patent Database, CN119033772 patent document.
[2] WIPO Patent Landscape Reports on Chinese pharmaceutical patents.
[3] Chinese Patent Law and Regulations, 2020 revised.
