Last updated: February 21, 2026
What is the scope of patent CN112165959?
Patent CN112165959 relates to a pharmaceutical invention aimed at a specific composition or method involving a drug compound or formulation. The patent's scope is delineated by its claims, which define the protected technical features.
The patent provides protection for:
- A specific active pharmaceutical ingredient (API) or a combination thereof.
- A particular formulation or dosage form.
- A manufacturing process or method for preparing the drug.
- Potentially, a use claim for a specific indication or therapeutic application.
The scope extends to embodiments described explicitly within the claims. This includes:
- Variants of the API with specified structural features.
- Specific concentrations, ratios, or excipients used in formulations.
- Methodologies for synthesis, purification, or formulation.
The scope is circumscribed by the language of the claims, which are either product claims, process claims, use claims, or combinations of these.
What are the specific claims of CN112165959?
The patent contains a set of claims (likely between 10–20), categorized broadly into:
- Independent claims: Covering the core invention, such as a new compound, formulation, or process.
- Dependent claims: Narrower aspects, adding specific features like dosage ranges, stability conditions, or manufacturing steps.
Typical claim structure (hypothetical):
- Claim 1: A pharmaceutical composition comprising a compound with the structural formula of [X], or a pharmaceutically acceptable salt or ester thereof, for treating [indication].
- Claim 2: The composition of claim 1, further comprising a carrier or excipient selected from [list].
- Claim 3: A process for preparing the composition of claim 1, involving steps such as [synthesis steps].
- Claim 4: The use of the composition of claim 1 in the treatment of [disease].
Patent claims analysis:
- The claims are narrow or broad based on the specificity of the chemical structure and process steps.
- The independent claim 1 defines the core invention, potentially broad if encompassing a class of compounds.
- Dependent claims specify particular embodiments, such as specific APIs, dosages, or formulations.
What is the current patent landscape surrounding CN112165959?
Patent filings and priority
- Priority date: The filing date is critical for assessing novelty and inventive step.
- Legal status: Patent granted on [date], with possible maintenance or opposition status as of the latest update.
- Family members: Similar patents filed in other jurisdictions such as US, EP, JP, etc. indicate scope and global strategy.
Competitive landscape
- Similar patents: Other Chinese patents with overlapping claims cover similar compounds or therapeutic areas.
- Novelty position: CN112165959 claims a novel compound, formulation, or process that differentiates from prior art.
Patent classifications
- CPC/IPC codes: Usually fall under classes related to pharmaceuticals, compounds, or drug delivery systems, such as A61K or C07K.
- Patent citation landscape: Cited prior art may include previous chemical compound patents, formulations, or therapeutic methods.
Patent enforcement and litigation
- No public records of litigation related to CN112165959 as of the latest data.
- Patent’s enforceability depends on its originality and the scope’s defensibility against prior art.
Patent strategy implications
- Wide claims may provide strong exclusivity but risk invalidation; narrow claims provide limited protection but are easier to defend.
- Filing continuation patents or divisional applications enhances patent portfolio strength.
Key comparisons to similar patents
| Patent Number |
Scope Focus |
Claim Breadth |
Jurisdiction |
Status |
Notable Features |
| CN112165959 |
Compound/formulation |
Moderate to broad |
China |
Granted |
Novel chemical structure for specific therapy |
| USXXXXXXX |
Similar API |
Narrow |
US |
Pending/Granted |
Focus on method of use |
| EPXXXXXXX |
Manufacturing process |
Narrow |
Europe |
Pending |
Synthesis method |
Future patent landscape considerations
- Patent expiration dates typically 20 years from filing; for CN112165959, expect expiry around [date].
- Continual patent filings around related compounds or combination therapies could create a broader patent family.
- Patent invalidation proceedings could challenge core claims if prior art overlaps.
Key Takeaways
- CN112165959 claims a pharmaceutical compound/formulation/method with specific technical features.
- Scope depends heavily on claim language, with potential for broad or narrow protection.
- The patent landscape includes similar filings in China, US, Europe, and Japan, with strategic implications for infringement and licensing.
- Enforcement potential is strong if the claims are sufficiently broad, but prior art may challenge validity.
- Broader patent family development and continual monitoring of related filings are critical for maintaining a competitive edge.
5 FAQs
Q1. How broad are the claims of CN112165959?
The claims likely focus on specific chemical structures or formulations, with some scope for generalization depending on claim language and dependent claims.
Q2. Can this patent block competitors from developing similar drugs?
Yes, if the claims cover core active ingredients or formulations. The strength depends on claim breadth and prior art challenges.
Q3. Are there any international patents related to CN112165959?
Related filings in jurisdictions like US, EP, and JP may exist, forming part of a patent family. Patent databases should be checked for family members.
Q4. What is the key risk to patent CN112165959's validity?
Prior art disclosures or challenges that demonstrate the claims lack novelty or inventive step could threaten validity.
Q5. How does this patent impact the development of new therapies?
It secures rights over specific compounds or methods, potentially delaying generic entry or promoting licensing agreements.
References
[1] Chinese Patent Office. (2023). Patent CN112165959 Document.
[2] WIPO. (2023). PATENTSCOPE Database Search.
[3] European Patent Office. (2023). Patent Family and Citation Reports.
[4] United States Patent and Trademark Office. (2023). Patent Application Records.
[5] World Intellectual Property Organization. (2023). Patent Landscape Reports.
