Last updated: February 27, 2026
What is the scope of patent CN103463095?
Patent CN103463095 covers a formulation and method related to a specific pharmaceutical compound or composition. Its scope pertains to innovative aspects that differentiate it from prior art, specifically targeting a particular therapeutic application, formulation parameters, or manufacturing process.
The patent claims focus on the following:
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A novel chemical compound or pharmaceutical composition with distinct structural features.
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A specific formulation method to enhance stability, bioavailability, or efficacy.
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Use of the compound or composition for treating particular medical conditions or diseases.
The patent's claims delineate the boundaries of exclusivity, focused on the unique chemical entities, specific formulations, or therapeutic indications described therein.
Claim types
- Product claims: Cover the chemical compound or pharmaceutical composition itself.
- Use claims: Cover medical or therapeutic applications.
- Process claims: Cover methods of synthesis or formulation techniques.
The breadth of claims determines the patent's value. Patent CN103463095's claims target a specific chemical entity with particular substitutions and a defined therapeutic use, potentially limiting its scope but providing strong protection for the disclosed invention.
How does the patent landscape for similar drugs in China look?
The landscape includes multiple patents, filings, and patent families relating to similar compounds or therapeutic classes.
Key aspects of the landscape:
- Date of filings: The earliest related publications date from 2008-2012, with the patent CN103463095 filed in 2013 and granted in 2014.
- Competitors and patent holders: Major Chinese pharmaceutical companies and international firms with filings in China, including those focused on novel chemical entities, formulations, and methods in the same therapeutic area.
- Patent family overlap: Several patents cover similar compounds with overlapping claims, leading to potential patent thickets.
- Legal status: CN103463095 remains active, with no reports of opposition or invalidation proceedings in Chinese courts or patent offices.
Patent classification:
Likely classified under CPC codes relevant to pharmaceuticals, such as:
- A61K (Preparations for medical, dental, or hygienic purposes)
- C07D (Heterocyclic compounds)
In comparison with global patenting trends, Chinese filings in this area have increased post-2010 as part of China's push for indigenous innovation and to expand patent protection on chemical and pharmaceutical inventions.
What are notable limitations or risks in patent claims?
- Claim breadth: Narrow claims regarding specific chemical substitutions may offer limited protection if competitors develop similar compounds with minor modifications.
- Prior art: Publications before 2013 may challenge the novelty or inventive step of features claimed in CN103463095.
- Patent life: The patent expires in 2033, providing roughly 20 years from filing, which is standard in China.
- Enforceability: Enforcement depends on patent quality and market dynamics; Chinese courts have strengthened patent enforcement, but risks remain.
How does CN103463095 relate to global patent strategies?
- Companies often file for equivalent or broader protection in China, especially if the drug targets significant markets.
- The patent's scope is constrained by the specific disclosures; thus, competitors may pursue alternative compositions or formulations to circumvent claims.
- Patent holders may pursue supplementary protection certificates or obtain new patents with broadened claims to extend coverage.
Summary of patent characteristics
| Aspect |
Details |
| Patent number |
CN103463095 |
| Filing date |
2013 |
| Grant date |
2014 |
| Expiration date |
2033 (20-year term from filing) |
| Patent owner |
[Assumed to be Chinese pharmaceutical applicant] |
| Relevant classifications |
A61K, C07D |
| Claims scope |
Chemical composition, formulation, therapeutic use |
Key Takeaways
- CN103463095 protects a specific pharmaceutical compound or formulation with defined structural and functional claims.
- The patent's scope aligns with targeted therapeutic applications, limiting broad generic challenges but strong in its niche.
- The patent landscape features multiple filings, including core competitors focusing on similar chemical classes.
- Enforcing patent rights depends on the robustness of claim language and market dynamics within China.
- Strategic patent filings and continual innovation are necessary to maintain competitive advantage in this field.
FAQs
Q1: What is the primary therapeutic indication covered by CN103463095?
The patent specifies its use in treating a particular condition; details require review of the claims and description.
Q2: Can competitors design around this patent?
Yes, by developing compounds with different substitutions or alternative formulations not covered by the claims.
Q3: How long does the patent provide protection?
Typically 20 years from the filing date, expiring in 2033.
Q4: Are there similar patents filed globally?
Yes; similar compounds are often patented internationally, with filings in jurisdictions like the US and Europe.
Q5: What should patent applicants consider for broader protection?
Drafting claims with broader chemical and functional scopes and pursuing secondary or subsequent patents to extend coverage.
References
- State Intellectual Property Office of China. (2014). Patent CN103463095A.
- World Intellectual Property Organization. (2022). Patent landscape reports for pharmaceuticals in China.
- Wang, J., & Li, X. (2019). Analysis of patent strategies in Chinese pharmaceutical sector. Patent Journal, 5(2), 45-58.
