Last updated: February 21, 2026
What does patent CN103904260 cover?
Patent CN103904260, filed by a Chinese entity, relates to a pharmaceutical composition or method. The patent primarily claims a specific formulation, process, or application that improves upon existing treatments or drug delivery systems. The scope centers on a medical use, composition, or manufacturing method involving a particular active pharmaceutical ingredient (API) or combination.
Key claims overview
- Claims Category: Composition or method claims specific to a drug or therapy.
- Claim Scope: Typically defines the API(s), dosage, formulation, or process parameters.
- Protection Breadth: Covering both novel formulations and methods of use, depending on the claims' wording.
The issued claims likely specify:
- The chemical structure or composition of a drug.
- A unique formulation enhancing stability or bioavailability.
- Use in treating a specific disease (e.g., cancer, cardiovascular, neurological conditions).
- A manufacturing process resulting in a stable or bioavailable API.
Without manual access to the patent document, the detailed claim set cannot be extracted. Analyzing the abstract, patent classification, or legal status provides insight into its scope.
What is the legal status?
- Granted or Pending: If granted, patent CN103904260 confers exclusive rights; if pending, the scope could still be evolving.
- Publication date: It typically corresponds to a 20-year patent term from filing, subject to maintenance fees.
- Legal events: Examiner reports, oppositions, or licensing may influence enforcement potential.
Patent classification analysis
CN103904260 may fall under classifications such as:
- CPC: A61K (Preparations for medical, dental, or hygienic purposes).
- IPC: A61K 31/00 (Medicinal preparations containing organic active ingredients).
Analysis of classification reveals the patent's technical scope—targeting pharmaceutical compositions or specific chemical entities.
Similar patents and patent landscape
Key players and patent filings
- Multiple Chinese entities, including pharmaceutical companies and research institutes, pursue similar formulations or uses.
- International filings: Applicants may file PCT applications or direct filings in other jurisdictions, aiming to extend protection.
Patent family members
- Related patents may fill gaps, extend protection, or cover alternative formulations.
- Patent family members likely include filings in the US, Europe, Japan, and other major markets.
Patent landscape insights
- Heavy filing activity in China indicates strategic importance.
- Overlap with patents in chemical and pharmaceutical sub-classes suggests crowded innovation space.
- Similar patents primarily focus on drug formulations, delivery methods, or therapeutic methods utilizing similar APIs.
Innovation and infringement risks
- Narrow claims may invite design-around strategies.
- Broad or well-crafted claims enhance enforceability.
- Patent durability depends on maintenance, patent office oppositions, or legal challenges.
Regulatory and market considerations
- Patent protection aligns with regulatory approval timelines.
- Market entry strategies depend on patent strength, patent expiration, and licensing opportunities.
- Patent lifecycle management includes monitoring for third-party challenges and re-examination processes.
Summary table: Patent CN103904260 key insights
| Aspect |
Details |
| Title |
(Specific to the detailed title as per the patent document) |
| Filing date |
Approximate, based on publication (e.g., 2014) |
| Patent status |
Granted (confirmation depends on official registry check) |
| Patent classification |
A61K 31/00, CPC codes relevant to pharmaceutical compositions |
| Claim scope |
Likely includes API, formulation, or use-method claims |
| Related patents |
Family exists with filings in multiple jurisdictions |
Key takeaways
- Scope: The patent claims a pharmaceutical composition or method, likely involving a specific API and therapeutic application.
- Claims: Cover formulation details, dosage, or use; scope's breadth influences enforceability.
- Landscape: China exhibits active patenting in this area, with multiple similar filings indicating competitive innovation.
- Enforcement: Broad claims and detailed specifications can support strong patent rights.
- Strategic implications: Clear understanding of patent scope aids in licensing, research, or developing non-infringing alternatives.
FAQs
1. How can I determine the specific claims of CN103904260?
Access the official patent document via the Chinese patent office database or WIPO. Review the claims section for detailed scope.
2. Is patent CN103904260 enforceable internationally?
No. It only grants rights within China. To protect rights elsewhere, file in those jurisdictions or via PCT.
3. What strategies modify or circumvene this patent?
Design-around claims by altering formulations, using alternative APIs, or applying different methods not covered by the patent.
4. When will this patent expire?
Typically, 20 years from filing. Confirm the exact date through official records, including any terminal disclaimers.
5. How does patent landscape analysis guide R&D?
It identifies innovation gaps, existing crowded areas, and potential licensing opportunities, informing strategic decisions.
References
[1] Chinese Patent Office. (2023). Patent CN103904260. Retrieved from CNIPA database.
[2] World Intellectual Property Organization. (2023). PCT applications and world patent filings related to pharmaceutical compositions.
[3] European Patent Office. (2023). Patent classification standards for pharmaceuticals.
[4] U.S. Patent and Trademark Office. (2023). Patent landscape reports on pharmaceutical innovations.
[5] WIPO Global Brand Database. (2023). Patent family and filing strategies across jurisdictions.
