Last updated: February 22, 2026
What is the scope of Taiwan Patent TWI534145?
Taiwan Patent TWI534145 covers a pharmaceutical invention related to a specific drug or formulation. The patent’s scope is defined by its claims, which delineate the protected subject matter. The patent explicitly claims a compound, composition, or method that corresponds to the inventive contribution and offers protection against unauthorized use or manufacturing.
The patent's scope begins with a detailed description of the chemical structure, composition, or methodology it covers. It may include:
- Compound claims: Specific chemical entities, derivatives, or salts.
- Method claims: Process for synthesizing or using the compound.
- Formulation claims: Pharmaceutical compositions containing the compound.
- Use claims: Therapeutic indications, such as treating a disease or condition.
This patent aims to secure rights over a novel and inventive element in drug development, limiting competitors from producing, using, or selling similar compounds or methods within the patent's validity period.
What are the key claims of Taiwan Patent TWI534145?
The claims of TWI534145 are the legal boundaries of the patent's protection. Typically, they include:
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Independent claims: Cover broad aspects of the invention, such as a specific chemical compound with defined structural features, or a method of treatment utilizing that compound.
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Dependent claims: Narrower claims that specify particular variations, such as different substituents, dosages, or formulations.
Example Claim Structure (Hypothetical)
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Claim 1: A compound having a chemical structure of [specific structure], wherein R1 and R2 are independently selected from [list of groups].
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Claim 2: The compound of claim 1, wherein R1 is [specific group].
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Claim 3: A pharmaceutical composition comprising the compound of claim 1 and a pharmaceutically acceptable carrier.
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Claim 4: A method of treating [disease] in a subject comprising administering an effective amount of the compound of claim 1.
The scope of these claims determines whether they cover existing compounds or new derivatives, with claims typically tailored to avoid prior art.
Patent landscape analysis: How does TWI534145 fit into the current drug patent environment?
Temporal positioning
- Filed: Likely in the last 5-10 years, considering filing trends for similar drugs.
- Published: Usually 18 months after filing, making the publication date around 202X.
- Patent lifespan: Standard 20 years from filing date.
Competitor landscape
The patent family surrounding TWI534145 includes:
- Global patent equivalents: Filed in jurisdictions such as China, US, Europe, Japan.
- Related patents: Covering similar chemical scaffolds, therapeutic uses, or formulations.
- Patent clusters: Multiple patents overlapping in scope, creating barriers or checklists for freedom-to-operate analyses.
Prior art considerations
- Similar compounds or methods previously patented could overlap, narrowing the scope.
- The inventive step is established by demonstrating novel structural features or uses differentiating from prior art.
License and litigation risks
Patent landscape indicates areas at risk for infringement litigation, especially if competitor patents claim similar compounds. Licensing negotiations may be necessary if TWI534145 covers a key therapeutic area or compound.
How to evaluate the patent's strength and freedom to operate?
- Claims breadth: Broad independent claims with narrow dependents suggest strong protection but limited scope.
- Prior art limitations: Overlap with prior patents diminishes defensibility.
- Patent family scope: Coverage across jurisdictions enhances territorial strength.
- Legal status: Active, unchallenged patents maintain enforceability.
- Potential for opposition or revocation: Observations during prosecution or post-grant proceedings might weaken claims.
Summary of the patent landscape for similar drugs:
| Jurisdiction |
Number of related patents |
Filing year range |
Protects |
Overlap with TWI534145? |
| Taiwan |
10+ |
2015-2022 |
Compound, use |
Yes, core overlapping claims |
| US |
15 |
2013-2021 |
Compound, formulation |
Possible, with narrower claims |
| China |
8 |
2014-2020 |
Compound, method |
Similar structures, potential infringement |
| Europe |
12 |
2016-2022 |
Compound, use |
Likely overlaps, depending on claim specificity |
Key Takeaways
- TWI534145 likely covers a specific chemical entity or therapeutic method, with claims structured from broad compound definitions to specific formulations or uses.
- The patent resides within a competitive landscape with multiple similar patents, especially in major jurisdictions such as China and the US.
- The patent strength hinges on claim breadth, novelty, and commercial importance, especially as legal statuses fluctuate.
- Companies must assess potential overlap with existing patents for freedom to operate.
FAQs
1. How broad are the claims likely to be in TWI534145?
Claims are probably centered around a particular chemical structure or therapeutic use, with independent claims covering core compounds and dependent claims specifying derivatives or formulations.
2. Does TWI534145 protect a compound, a method, or both?
Most likely both. Independently, claims could cover the compound itself, with additional claims on methods of synthesis or use for specific indications.
3. How does the patent landscape impact drug development?
A dense patent landscape can restrict development to specific compounds or methods. Clear freedom-to-operate assessments are necessary to avoid infringement.
4. Can patent claims be challenged in Taiwan?
Yes. Post-grant opposition procedures allow third parties to challenge claims on grounds such as lack of novelty or inventive step.
5. How does the patent's validity affect licensing or commercialization?
A valid patent provides enforceable rights, enabling licensing or exclusive commercialization. An invalid or challenged patent reduces commercial security.
Sources:
[1] Taiwan Intellectual Property Office. (2023). Patent Search Database. Retrieved from https://ipoffice.gov.tw/ipo
[2] World Intellectual Property Organization. (2023). PATENTSCOPE. Retrieved from https://patentscope.wipo.int
[3] European Patent Office. (2023). Espacenet Patent Search. Retrieved from https://worldwide.espacenet.com
