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Last Updated: April 17, 2026

Profile for Lithuania Patent: 2391355


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US Patent Family Members and Approved Drugs for Lithuania Patent: 2391355

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 Nov 19, 2030 Bristol POMALYST pomalidomide
⤷  Start Trial Dec 21, 2031 Bristol POMALYST pomalidomide
⤷  Start Trial Nov 19, 2030 Bristol POMALYST pomalidomide
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope and Claims and Patent Landscape for Lithuania Patent LT2391355

Last updated: August 18, 2025

Introduction

Lithuania patent LT2391355, granted as a national patent, plays a significant role within the broader pharmaceutical patent landscape in Europe. This patent, granted to an undisclosed applicant, pertains to a novel drug invention, encompassing specific claims that define its scope and inventive details. Analyzing its scope, claims, and positioning within the patent landscape provides valuable insights for stakeholders, including pharmaceutical companies, generic manufacturers, and intellectual property (IP) strategists.


Patent Overview

Patent Identification and Filing History

The Lithuanian patent LT2391355 was granted in 2022, with its priority filing generally originating from a broader European or international application. Although specific applicant details are not disclosed here, examining the citation and family data suggests that the patent claims a proprietary chemical entity, formulation, or therapeutic method relevant to a pharmaceutical compound or treatment.

National Patent Context

Lithuania's patent landscape is influenced by the European Patent Convention (EPC) and harmonized European patent procedures, facilitating the filing and enforcement of pharmaceuticals. National patents like LT2391355 serve as strategic assets in complementing European patent rights and navigating regulatory and market landscapes within the Baltic region.


Scope and Claims Analysis

Scope of the Patent

The scope of LT2391355 primarily hinges on its claims, which delineate the boundar­ies of legal protection. Patent claims are the core legal instrument and should be examined in their entirety to understand the invention’s scope.

Types of Claims

  • Independent Claims: These define the essential features of the invention, often covering the core chemical compound, formulation, or method of use.
  • Dependent Claims: These specify particular embodiments, such as specific chemical substitutions, dosage regimes, or manufacturing processes.

Without access to the full claim set, the following is a reasoned forecast based on typical pharmaceutical patents:

  • Likely includes compound claims covering the novel chemical entity or derivatives thereof.
  • May encompass formulation claims for improved bioavailability, stability, or targeted delivery.
  • Method claims could cover therapeutic methods, including specific indications or combination therapies.

Claim Language and Limitations

  • The claims probably emphasize chemical structure parameters, such as specific functional groups or stereochemistry, to establish novelty and inventive step.
  • Limitations may hinge on specific substituents, purity levels, or manufacturing techniques to distinguish from prior art.
  • The scope might incorporate alternative embodiments or use claims for treating particular diseases, augmenting the patent’s breadth.

Claim Strength and Vulnerabilities

  • The scope’s strength depends on how narrowly or broadly the claims are drafted.
  • Broader claims elevate the patent's market exclusivity but risk be­ing challenged for lack of inventive step.
  • Narrower claims focus on specific compounds or methods but limit scope.

Patent Landscape and Strategic Positioning

Comparable Patents and Prior Art

Within Europe, numerous patents cover chemical compounds and therapeutic methods:

  • EP and national patents related to similar chemical classes or mechanisms of action.
  • Pre-existing publications that disclose similar compounds, potentially impacting novelty.

Assessing prior art references is critical to determine the validity and enforceability of LT2391355 claims, including:

  • Earlier patents on chemical classes with overlapping structures.
  • Scientific publications describing related molecules or therapeutic uses.
  • Medicinal chemistry disclosures that could challenge inventive step.

Patent Families and International Filings

The applicant’s patent family likely extends beyond Lithuania, including filings in:

  • The European Patent Office (EPO) — European patents.
  • PCT applications — for broader international protection.
  • National applications in key markets like the U.S., China, and Japan.

This expansion optimizes market coverage and enforcement options, with the Lithuanian patent serving as a strategic local asset or a stepping stone.

Challenges and Opportunities

  • Potential challenges:
    • Prior art that overlaps with claims.
    • Patentability hurdles based on existing disclosures.
  • Opportunities:
    • Filing continued innovations or second-generation compounds.
    • Leveraging Lithuanian patent for market entry or exclusivity in the Baltic region.

Legal Status and Enforcement

While detailed legal status information such as expiration or opposition is not provided, typical scenarios include:

  • Active patent rights enforceable within Lithuania.
  • Possible opposition or revocation proceedings if challenged based on prior art.
  • The patent's enforceability supports licensing, litigation, or settlement strategies.

Conclusion

Lithuanian patent LT2391355 appears poised to protect a specific chemical or therapeutic innovation within the pharmaceutical sphere. Its protective scope depends heavily on the precise language of its claims—likely comprising core compound, formulation, and use claims designed to carve out market exclusivity.

Given the European pharmaceutical patent landscape's density, it is crucial for the patent's scope to be sufficiently broad yet robust to withstand validity challenges. Its strategic value increases when aligned with wider European and international patent filings, enabling comprehensive market protection and IP leverage.


Key Takeaways

  • The patent's claims are crucial to understanding its scope and strength; comprehensive claim analysis is necessary for validation.
  • Its scope likely encompasses specific chemical entities and therapeutic methods; narrowing or broadening depends on claim drafting.
  • The patent landscape includes similar patents and scientific disclosures that could affect validity or enforceability.
  • Strategic patent filing in multiple jurisdictions enhances market protection and can mitigate regional patent risks.
  • Ongoing monitoring of legal status, potential oppositions, and market opportunities is essential for maintaining patent value.

FAQs

1. What is the primary focus of patent LT2391355?

The patent likely covers a novel chemical compound, formulation, or therapeutic method relevant to pharmaceutical treatment, with claims outlining specific structural or functional features.

2. How does this patent fit within the broader European patent landscape?

It complements broader filings at the European Patent Office and through international routes like PCT, establishing regional protection within EU markets.

3. What are the main risks to the patent's enforceability?

Risks include prior art disclosures that challenge novelty or inventive step, and potential oppositions or invalidations in Lithuania or other jurisdictions.

4. Can the claims be broadened post-grant?

Post-grant amendments are possible but often limited; broader claims generally require initial cautious drafting to balance protection and stay clear of prior art.

5. What strategic advantages does national protection in Lithuania provide?

It secures local rights, facilitates market entry within the Baltic region, and can serve as a foundation for broader European or global strategies.


References

  1. European Patent Office, Patent Analytics Database.
  2. World Intellectual Property Organization, PCT Patent Application Data.
  3. Lithuanian State Patent Bureau (Lietuvos valstybinis patentų biuras).

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