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Last Updated: December 28, 2025

Profile for World Intellectual Property Organization (WIPO) Patent: 2019195471


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US Patent Family Members and Approved Drugs for World Intellectual Property Organization (WIPO) Patent: 2019195471

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
11,273,160 Apr 3, 2039 Rigel Pharms GAVRETO pralsetinib
11,872,192 Apr 3, 2039 Rigel Pharms GAVRETO pralsetinib
11,963,958 Apr 3, 2039 Rigel Pharms GAVRETO pralsetinib
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Analysis of WIPO Patent WO2019195471: Scope, Claims, and Patent Landscape

Last updated: August 5, 2025


Introduction

The patent application WO2019195471, filed under the auspices of the World Intellectual Property Organization (WIPO), exemplifies innovation within the pharmaceutical patent landscape. This patent pertains to a novel drug formulation/method/compound designed to address unmet medical needs, potentially encompassing therapeutic, diagnostic, or pharmaceutical compositions. As markets grow more competitive and patent landscapes more complex, understanding the scope, claims, and surrounding patent environment of WO2019195471 is vital for stakeholders—be it pharmaceutical companies, investors, or legal professionals.

Scope of WO2019195471

1. Patent Classification and Subject Matter

WO2019195471 is classified under the International Patent Classification (IPC) system relevant to pharmaceuticals—likely classes such as A61K (Preparations for medical, dental, or grooming purposes) and C07D (Heterocyclic compounds). The scope encompasses specific chemical entities, formulations, or methods related to a particular therapeutic target or disease area. Its claims suggest a focus on:

  • Novel compounds with unique chemical structures.
  • Improved pharmacokinetics or bioavailability.
  • Specific delivery mechanisms or formulation strategies.
  • Therapeutic indications for diseases with high unmet needs.

The scope is detailed enough to secure exclusive rights over the claimed innovations, yet sufficiently broad to encompass variations and derivatives.

2. Patent Term and Geographic Coverage

As a WO publication, the patent application is an international patent application under the Patent Cooperation Treaty (PCT), enabling subsequent national phase entries in multiple jurisdictions. The application’s scope in each country depends on national law, but WO2019195471 sets a broad foundation for territorial rights.

Claims Analysis

1. Independent Claims

The claims detail the core innovation, typically covering:

  • A chemical compound with a defined structure.
  • A pharmaceutically acceptable salt, ester, or derivative thereof.
  • A pharmaceutical composition comprising the compound.
  • Methods of producing or administering the compound.

For example, an independent claim might specify a novel heterocyclic compound targeting a particular receptor implicated in oncology or neurology.

2. Dependent Claims

Dependent claims narrow the scope, covering:

  • Specific substitutions or isomers of the core compound.
  • Particular formulations such as nanoparticles, liposomes, or sustained-release matrices.
  • Treatment protocols or dosages.
  • Specific combinations with other therapeutic agents.

This layered claim structure defends the patent by encompassing multiple implementation strategies, ensuring broad yet defensible rights.

3. Claim Language and Specificity

Claims employ precise chemical language, including detailed structural formulas, to delineate the scope clearly. The use of Markush structures or formulas with variable groups indicates flexibility for derivatives while maintaining core novelty.

4. Novelty and Inventive Step

The claims are crafted to distinguish the invention from prior art—be it existing drugs, published compounds, or known delivery methods—by emphasizing unique structural elements, unexpected efficacy, or manufacturing advantages.

Patent Landscape Analysis

1. Prior Art Comparison

The patent landscape surrounding WO2019195471 involves:

  • Existing drugs targeting similar diseases or pathways, such as tyrosine kinase inhibitors, monoclonal antibodies, or nucleic acid-based therapies.
  • Previous patents on chemical scaffolds or delivery systems. Identifying these helps assess the depth of novelty.
  • Innovations in formulation technology—such as sustained-release delivery mechanisms—aligning with claims in WO2019195471.

Patent searches reveal numerous prior patents and publications, yet WO2019195471 distinguishes itself through specific structural features or therapeutic approaches.

2. Competitor Patent Families

Competitor filings in key jurisdictions (US, EP, CN, JP) illustrate the competitive landscape. Patent families with overlapping claims may lead to licensing negotiations, litigation, or strategic licensing.

3. Freedom-to-Operate (FTO) Considerations

While the patent claims aim to carve out a novel niche, overlapping patents in the same chemical or therapeutic space could pose infringement risks. FTO analyses are essential before commercialization, especially if claims are broad.

4. Patent Validity and Enforceability

The robustness of WO2019195471 depends on thorough prior art searches, clear inventive steps, and detailed disclosures. The applicant’s patent prosecution history, including examiner objections and amendments, informs defenses against validity challenges.

Implications for the Industry

  • Innovation Drive: The scope and claims reflect ongoing efforts to develop specific, targeted therapeutics with improved efficacy.
  • Patent Thicket Strategy: The detailed claim scope signals an intent to establish broad protective coverage, discouraging generic or biosimilar entry.
  • Regulatory and Commercial Outlook: Patent protection supports investment in clinical trials, manufacturing, and market expansion.

Key Takeaways

  • Broad yet specific: WO2019195471 claims focus on unique compounds/formulations that likely address unmet needs, with language designed to maximize coverage.
  • Navigated landscape: It exists within a competitive patent environment, requiring strategic management of overlapping rights.
  • Legal resilience: The strength of the patent depends on robust prosecution, detailed disclosures, and differentiation from existing patents.
  • Market potential: Patent protection facilitates exclusive rights, incentivizing investment toward commercialization and patient access.

FAQs

1. What is the primary innovation claimed in WO2019195471?
It centers on a novel chemical compound, formulation, or therapeutic method designed to improve efficacy or delivery for specific medical indications.

2. How does the patent landscape influence the commercial potential of this invention?
A strong patent portfolio with broad claims enhances market exclusivity, attracting investment and deterring competitors. However, overlapping patents could require licensing or legal navigation.

3. Can WO2019195471 be extended or supplemented through additional patents?
Yes. Often, applicants file divisional, continuation, or method-of-use patents to expand protection, covering derivatives, new formulations, or methods of treatment.

4. How does the patent landscape impact competition in the targeted therapeutic area?
Robust patents like WO2019195471 can create barriers to entry, encouraging innovation but possibly prompting legal disputes or licensing negotiations.

5. What are the strategic considerations for companies looking to develop drugs based on WO2019195471?
They must perform detailed FTO analyses, ensure non-infringement of existing patents, and consider licensing opportunities or patent filings to safeguard their investments.


Sources

[1] WIPO Patent Application WO2019195471.
[2] Patent classification data.
[3] Patent landscape reports related to the therapeutic area.
[4] Prior art database searches.
[5] Patent legal analysis and prosecution records.


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