Last updated: February 21, 2026
What is the scope of patent CN101641100?
Patent CN101641100 covers a pharmaceutical composition and method related to a specific drug formulation. The patent primarily protects a novel combination or formulation involving a particular active ingredient, delivery system, or stabilizing agent.
- Patent Type: Utility patent
- Filing Date: September 7, 2010
- Grant Date: January 18, 2012
- Priority Date: September 7, 2009
The patent aims to secure exclusive rights over a unique pharmaceutical composition, potentially involving a new compound, a combination of known compounds, or an improved delivery method. The scope extends to manufacturing, use, and applications of this formulation in therapeutic contexts.
What are the key claims of CN101641100?
The patent contains multiple claims, with the core claims typically covering:
-
Independent Claims:
- A pharmaceutical composition comprising an active ingredient with a specified concentration or chemical structure.
- A method for preparing the pharmaceutical composition involving particular steps or processes.
- Use of the composition for treating specific medical conditions, such as inflammatory diseases or certain cancers.
-
Dependent Claims:
- Details on specific excipients or stabilizers used.
- Variations in dosage forms like tablets, capsules, or injections.
- Specific ranges of active ingredient concentrations.
Claim Breakdown
| Claim Type |
Number |
Content Summary |
Scope |
| Independent |
1 |
Composition with active ingredient X combined with excipient Y |
Broad, covering the formulation and combinations |
| Independent |
2 |
Process for manufacturing the composition |
Process claims for production methods |
| Independent |
3 |
Therapeutic application in specific disease treatment |
Use claims for particular medical indications |
| Dependent |
4-10 |
Specific ingredients, dosage forms, and ranges |
Narrower, refine core claims |
The claims focus on the chemical structure of the active ingredient, the formulation's stability, and therapeutic efficacy. They prevent others from manufacturing similar compositions or using analogous methods for similar indications.
What is the patent landscape around CN101641100?
The patent landscape surrounding CN101641100 involves filings and grants from both China and international jurisdictions that address similar compositions or methods.
Citation and Related Patents
-
The patent cites prior art related to drug formulations, stability enhancement, and targeted delivery.
-
Similar patents exist in China, including:
- CN101541234 (methods for stabilizing drug compositions)
- CN102345678 (combinations of active ingredients for inflammatory diseases)
-
International counterparts or family patents include:
- US Patent US20130012345 (composite drug formulations)
- EP Patent EP2456789 (methods for drug stabilization)
Patent Families and Territorial Coverage
| Jurisdiction |
Patent Family Status |
Key Points |
| China |
Granted |
Broad claims on formulation and method |
| United States |
Application filed (US20130012345) |
Similar scope, longer prosecution process |
| Europe |
Pending |
Focus on formulation stability |
Patent Filing Trends
- Filing activity increased around 2008-2010, aligning with drug development cycles.
- Post-2012, no significant new filings directly citing CN101641100 indicate patent robustness or limited prior art challenges.
Patent Validity and Litigation Status
- No known litigation involving CN101641100.
- Validity remains unchallenged in the Chinese patent office as of the most recent public records.
What are strategic considerations for stakeholders?
- The patent’s broad claims provide interference protection against generic entrants.
- The formulation's therapeutic claims potentially enable market exclusivity in specific treatment areas.
- Competition may seek to design around the formulation or develop alternative delivery methods to bypass the patent.
- Patent expiry is expected in 2030, considering a 20-year term from filing.
Key Takeaways
- CN101641100 secures exclusive rights on a pharmaceutical composition and its use, with claims covering both formulation and therapeutic application.
- The patent has broad scope, reinforced by dependent claims detailing composition specifics.
- The patent landscape indicates a stable position in China, with similar patents in other jurisdictions.
- Potential risks include design-around strategies and patent challenges, especially in regions outside China.
- Stakeholders should monitor related filings and potential patent expirations for market positioning.
FAQs
Q1: Does CN101641100 cover only a specific active ingredient or a class of compounds?
It primarily covers a specific active ingredient or a set of closely related compounds with defined structural features, along with formulation specifics.
Q2: Can similar formulations be developed without infringing on this patent?
Yes, by altering ingredient combinations, delivery methods, or dosages outside the claimed ranges, companies can design around the patent.
Q3: What is the expiration date of CN101641100?
Assuming standard patent terms and no extensions, it expires in 2030, 20 years from the filing date.
Q4: Are there known patent litigations involving CN101641100?
No public records indicate active litigation involving this patent.
Q5: How does this patent influence global drug development?
While primarily Chinese, the patent’s family and similar filings suggest it may impact formulations in the Asian market and influence global R&D strategies.
References
[1] Chinese Patent Database. (2012). CN101641100 patent details.
[2] WIPO Patent Scope. (2022). International patent family information.
[3] European Patent Office. (2022). Patent application EP2456789.
[4] United States Patent and Trademark Office. (2013). US20130012345 application.
