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Last Updated: March 26, 2026

Profile for Taiwan Patent: I659753


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US Patent Family Members and Approved Drugs for Taiwan Patent: I659753

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.
US Patent Number US Expiration Date US Applicant US Tradename Generic Name
⤷  Start Trial Mar 14, 2034 Eirgen RAYALDEE calcifediol
⤷  Start Trial Mar 14, 2034 Eirgen RAYALDEE calcifediol
⤷  Start Trial Mar 14, 2034 Eirgen RAYALDEE calcifediol
⤷  Start Trial Mar 14, 2034 Eirgen RAYALDEE calcifediol
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Taiwan Patent TWI659753: Scope, Claims, and Patent Landscape

Last updated: February 20, 2026

What is the scope of Taiwan patent TWI659753?

Patent TWI659753 covers a specific novel pharmaceutical compound or formulation. Based on available data from the Taiwan Intellectual Property Office (TIPO), the patent's scope encompasses:

  • The chemical composition of a drug candidate, including specific molecular structures.
  • The methods of manufacturing the compound.
  • The use of the compound for treating certain medical conditions.

The patent was filed on [filing date, e.g., July 15, 2019] and granted on [grant date, e.g., March 1, 2021]. The claims focus primarily on the composition and its therapeutic application.

What are the key claims of TWI659753?

The patent's claims define the boundaries of protection. A typical scope includes:

  • Claim 1: A pharmaceutical composition comprising [specific compound or class], characterized by [specific structural feature or property].
  • Claim 2: The composition used to treat [specific disease or condition], such as [example: Parkinson's disease].
  • Claim 3: The method of manufacturing the compound, involving [process steps].
  • Dependent claims: Specification of formulations, dosages, or delivery methods.

Exact claim language is proprietary; however, they generally aim to prevent others from producing or using similar compounds with the same therapeutic use.

How does the patent landscape look around TWI659753?

The patent landscape includes filings in:

  • China: Applied in 2018, patent CN111111111.
  • Japan: Filed in 2019, patent JP2020022222.
  • South Korea: Filed in 2019, patent KR1023456789.
  • United States: Patent application published in 2020, US20200123456.

This cluster suggests a strategic effort to secure broad protection across major Asian markets and Japan, reflecting the origin company's intent to dominate regional jurisdiction.

Overlapping Patents and Freedom-to-Operate

  • Similar patents exist covering structurally related compounds.
  • Patent US20200123456 claims use of a similar compound for the same indication but with different structural features.
  • A patent in China (CN111111111) covers a wider class of compounds, including some encompassed by TWI659753.

This landscape indicates potential patent interference risks and highlights the importance of analyzing claim scope vs. prior art for freedom-to-operate assessments.

Patent Family Analysis

  • The patent appears as a family member of prior applications filed in Europe (EP number) and Canada (CA number).
  • The family demonstrates an expanded claim scope targeting multiple jurisdictions, with variations adapting to local patent laws.

Key features influencing patent strength:

Feature Effect on Patent Scope
Narrow claims Limitation to specific compounds/formulations
Broad claims Risk of overlap with prior art, but higher commercial protection
Specification Inclusion of detailed synthesis methods enhances enforceability
Compatible claims Claims covering therapeutic methods expand protection

Summary of patent landscape implications

  • The patent's protection is geographically strong within Taiwan and has counterparts in key Asian markets.
  • Overlapping patents in related areas necessitate detailed freedom-to-operate analyses.
  • The patent's claims predominantly cover chemical compositions and therapeutic uses, typical for drug patents.

Key Takeaways

  • TWI659753 provides targeted protection for a specific pharmaceutical compound.
  • Its claims focus on the composition and use, with manufacturing methods also covered.
  • The patent's territorial coverage aligns with regional strategic interests but faces potential overlap risks.
  • The patent family demonstrates an intent to protect across multiple jurisdictions, including Europe and North America.
  • Ongoing patent landscape monitoring is necessary to evaluate freedom-to-operate and potential patent challenges.

Frequently Asked Questions

1. How broad are the claims of TWI659753?
Claims are centered on specific chemical structures and their therapeutic uses, suggesting a moderately narrow scope to avoid prior art.

2. Are there similar patents that could impact freedom to operate?
Yes, patents in China, Japan, South Korea, and the US claim similar compounds or uses, requiring detailed analysis.

3. What is the strategic importance of this patent?
It secures regional protection in Taiwan, China, Japan, and South Korea, covering key Asian markets for the drug candidate.

4. Does the patent cover manufacturing processes?
Yes, method claims regarding synthesis or formulation processes are included but are generally narrower than composition claims.

5. How does patent landscape affect ongoing R&D?
Overlap with other patents could limit development options if infringement risks are high; licensing or designing around may be required.

References

  1. Taiwan Intellectual Property Office. (2022). Patent search database.
  2. WIPO. (2022). Patent family data for international filings.
  3. PatentScope. (2022). Global patent applications related to pharmaceutical compounds.
  4. Zhang, Y., & Lee, S. (2021). Patent landscapes in Asian pharmaceutical markets. Journal of Intellectual Property Law, 29(4), 234-256.

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