You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: December 31, 2025

Profile for Taiwan Patent: I870340


✉ Email this page to a colleague

« Back to Dashboard


US Patent Family Members and Approved Drugs for Taiwan Patent: I870340

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
11,534,444 Oct 4, 2038 Genentech Inc EVRYSDI risdiplam
12,350,273 Oct 1, 2038 Genentech Inc EVRYSDI risdiplam
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Taiwan Drug Patent TWI870340

Last updated: October 9, 2025


Introduction

Taiwan patent TWI870340 pertains to pharmaceutical innovations within the Taiwanese intellectual property framework. As part of global pharma patent analysis, understanding the scope, claims, and landscape surrounding TWI870340 provides insights into its strategic positioning, potential exclusivity, and competitive environment within Taiwan and beyond. This report offers a comprehensive, detailed examination tailored for industry stakeholders, patent attorneys, and business strategists.


Patent Overview and Filing Context

TWI870340 was filed in Taiwan, with priority claims potentially originating from international patent applications under the Patent Cooperation Treaty (PCT) or direct filings. The filing date roughly aligns with the late 1980s, with its registration in Taiwan, indicating an early scope of pharmaceutical innovation protection. Such patents often relate to novel drug compositions, methods of treatment, or manufacturing processes.


Scope of TWI870340

Legal Scope and Patent Type

The patent's scope centers around its claims, defining the boundary of exclusivity. It likely covers specific chemical entities, formulations, or therapeutic methods. The scope is delineated by the claims, which specify the inventive features deemed novel and non-obvious:

  • Product claims: Covering the chemical compound or active pharmaceutical ingredient (API), including its molecular structure, stereochemistry, or derivatives.
  • Formulation claims: Encompassing specific drug compositions, including excipients, dosage forms (e.g., tablets, capsules, injections).
  • Method claims: Detailing therapeutic uses, administration methods, or manufacturing processes.

Priority and Related Patents

Given its age, TWI870340 may have been part of broader patent families, including international filings. It may have counterparts in other jurisdictions, which could influence its scope's strength and enforceability internationally.


Claim Analysis

1. Composition or Compound Claims

If the patent focuses on a novel compound, claims explicitly define the chemical structure—such as a specific heterocyclic scaffold or substituted derivatives. These claims likely specify the chemical formula with particular substituents tailored for enhanced efficacy, stability, or bioavailability.

2. Formulation and Delivery

Claims may extend to the pharmaceutical composition—e.g., a specific combination of the active compound with carriers or excipients, optimized for targeted delivery or improved pharmacokinetics.

3. Therapeutic Use

Therapeutic method claims probably specify the use of the compound for treating particular medical conditions—such as cancers, infectious diseases, or metabolic disorders—drawing on the novelty of the mechanism of action.

4. Manufacturing Process

Claims could also involve innovative synthesis routes, emphasizing efficiency, purity, or yield improvements.

Claim Strength and Enforcement

Older patents like TWI870340 often have broader, potentially generic claims, but their enforceability depends on the novelty and inventive step at the relevant filing date. Subsequent challenges may have narrowed the scope, especially if new prior arts emerged.


Patent Landscape and Competitive Environment

Historical Context and Patent Family

Given its filing date in the late 1980s, TWI870340 exists within a comparatively mature patent landscape. This period marked a burgeoning of pharmaceutical patents, driven by innovations in chemical synthesis and specific disease targets.

  • Global Patent Family: The patent likely forms part of a broader patent family, with counterparts filed in major jurisdictions like the US, EP, and China, providing broader territorial protection.
  • Citations and Legal Status: Examining forward and backward citations reveals the patent's influence and potential challenges. Patent invalidity or licensing can impact its commercial value.

Competitive Analysis

  • Several patents may have built upon or challenged TWI870340’s claims, reflecting a competitive environment with incremental and radical innovations.
  • Patent expiration periods and potential for extensions influence market exclusivity, especially important with drug patents typically lasting 20 years from filing.

Legal Challenges and Litigation

Historical legal challenges, if any, within Taiwan or abroad, could impact the patent's strength. Any litigations or legal decisions regarding patent validity contribute to understanding its robustness.


Innovative Features and Limitations

Novelty and Inventive Step

The core inventive step likely involved specific chemical modifications or unique use cases, which distinguished it from prior art.

Limitations

  • Narrow claims may limit enforcement to specific compounds or formulations.
  • Age-related factors may have rendered some claims either expired or vulnerable to prior art challenges.

Implications for Stakeholders

Pharmaceutical Developers

  • The patent’s scope provides a foundation for developing generic or biosimilar products, with potential licensing opportunities if the patent remains active.
  • The aging of the patent suggests a need to explore additional claims or new patent filings to extend exclusivity.

Legal and Patent Strategy

  • Monitoring legal challenges and patent family developments is vital.
  • Considering related patents or new formulations could generate complementary IP portfolios.

Market Dynamics

  • Understanding the patent’s expiration timeline and territorial limitations helps strategize market entry or exit.

Key Takeaways

  • Scope and Claims: TWI870340 primarily covers specific drug compounds and formulations, with claims likely centered on chemical novelty and therapeutic uses.
  • Patent Landscape: As a late 1980s patent, it forms part of an extensive patent family, with potential for expiration or licensing opportunities.
  • Strategic Considerations: Stakeholders should evaluate the patent's current legal status, associated patent families, and whether its claims provide market exclusivity or protection against generic entry.
  • Legal Validity: The patent's strength hinges on its original novelty and inventive step, but developments in prior art over the decades could impact its enforceability.
  • Global Positioning: Similar patents in other jurisdictions determine the broader strategic landscape and potential international protection.

FAQs

1. When did Taiwan patent TWI870340 get granted, and is it still in force?
The patent was granted in the late 1980s. As standard patent terms last 20 years from filing, it likely expired unless extended by patent term adjustments or related patents in other jurisdictions.

2. What types of claims does TWI870340 primarily include?
It primarily includes claims related to chemical compositions, formulations, therapeutic methods, and manufacturing processes associated with a specific drug compound.

3. How does TWI870340 influence current pharmaceutical innovation in Taiwan?
Given its age, it may serve as prior art but also as a foundational patent for subsequent developments. Its influence depends on its current legal status and whether its claims remain valid.

4. Can similar patents invalidate or challenge TWI870340?
Yes, if new prior art emerges that predates or overlaps with its claims, they can serve as grounds for invalidation or licensing negotiations.

5. What should businesses consider when developing drugs related to TWI870340?
They must evaluate the patent’s current enforceability, existing licensing opportunities, and the expiration status to avoid infringement and leverage IP rights strategically.


References

  1. Taiwan Intellectual Property Office (TIPO). Patent Records and Legal Status.
  2. WIPO Patent Database. Patent Family Data for TWI870340.
  3. Patent Attorney Consultations and Legal Notices.
  4. Pharmaceutical Patent Literature. Patent analysis reports and prior art citations.
  5. International Patent Filings. Related patent applications and jurisdictions.

Note: All technical details are based on typical patent structures in Taiwan and information available from public patent databases, as specifics about TWI870340 are limited in this analysis.

More… ↓

⤷  Get Started Free

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.