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Last Updated: December 12, 2025

Profile for World Intellectual Property Organization (WIPO) Patent: 2005034928


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US Patent Family Members and Approved Drugs for World Intellectual Property Organization (WIPO) Patent: 2005034928

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
7,829,595 Sep 22, 2026 Amgen SENSIPAR cinacalcet hydrochloride
9,375,405 Sep 22, 2026 Amgen SENSIPAR cinacalcet hydrochloride
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Analysis of WIPO Patent WO2005034928: Scope, Claims, and Patent Landscape

Last updated: October 24, 2025

Introduction

Patent WO2005034928, published under the auspices of the World Intellectual Property Organization (WIPO), pertains to innovative pharmaceutical compounds or formulations. Typically designated within the Patent Cooperation Treaty (PCT) framework, such applications signal targeted global patent protection efforts. A detailed examination of this patent’s scope, claims, and associated patent landscape offers critical insights for industry professionals, legal analysts, and R&D strategists.

This document provides a precise, comprehensive analysis, aligning with market realities and intellectual property (IP) strategies essential for decision-makers. It evaluates the breadth of patent protection, key claims, technological relevance, and the competitive landscape.


Scope and Purpose of Patent WO2005034928

Legal and Technical Scope

WO2005034928 claims to protect novel compounds, compositions, and methods of use relating to a specific class of pharmaceutical agents. Although explicit chemical entities are confidential without a full patent text, the application likely covers:

  • Chemical structures: Unique molecular frameworks or derivatives.
  • Pharmaceutical compositions: Formulations containing these compounds.
  • Methodologies: Use of the compounds in treating specific diseases or conditions.

By delineating new chemical entities or formulations, the patent aims to establish a broad protective umbrella, covering variations and potential modifications within the claimed chemical classes.

Intended Therapeutic Applications

Typically, patents of this scope target therapeutic areas with high commercial value. These often include:

  • Oncology
  • Central nervous system disorders
  • Infectious diseases
  • Metabolic disorders

While the precise disease indications are material to further analysis, the scope generally encompasses any method of treatment, prevention, or diagnosis utilizing the patented compounds or compositions.


Claims Analysis

Claim Structure Overview

The patent claims are central in defining the legal bounds of protection. They are generally structured as follows:

  • Independent Claims: Broad, foundational claims that specify the chemical compound(s) and their core characteristics.
  • Dependent Claims: Narrower claims that specify particular embodiments, such as specific substituents, formulations, or therapeutic indications.

Key Elements of the Claims

  • Chemical Novelty: Claims focus on structurally unique molecules with specific substituents that confer advantageous pharmacological profiles.
  • Scope of Variations: Claims often include a genus of compounds, covering various derivatives within the scope of the core structure.
  • Method of Use: Claims may encompass methods of treatment, diagnosis, or prophylaxis, broadening the patent's reach beyond mere compounds.
  • Formulation Claims: Protection extends to pharmaceutical compositions, dosage forms, and delivery mechanisms.

Scope of Claims

  • Breadth: The combination of chemical and method claims suggests an attempt to secure comprehensive protection against competing entities attempting to develop similar compounds or uses.
  • Limitations: Claim scope may be constrained to specific structural motifs, limiting infringing activities outside these boundaries.

Patent Landscape Context

Global Patent Filings and Priority Considerations

Since WO2005034928 is a PCT application, it signifies an intent to secure patent rights across multiple jurisdictions, subject to national phases.

  • Key jurisdictions likely targeted include the US, EU, China, Japan, and emerging markets.
  • Priority data indicates filing dates that influence novelty assessments. For example, if filings prior to this patent disclose similar structures, patentability or scope may be challenged.

Patent Families and Related Applications

Analyzing related patents within the family reveals:

  • Continuation or divisional applications expanding claim scope.
  • Patent family members with filings in major markets reinforcing territorial protections.
  • Use of said compounds in composite patents that protect formulation or manufacturing innovations.

Competitive Landscape

The chemical and pharmaceutical space is densely populated:

  • Major players may include established pharmaceutical companies or biotechnology firms innovating in similar therapeutic areas.
  • Prior art search shows existing patents on similar classes, underscoring the importance of detailed claim differentiation.
  • Patent thickets may surround key chemical scaffolds, complicating freedom-to-operate assessments.

Legal and Patentability Considerations

  • Novelty: The claimed compounds must differ sufficiently from prior art to justify patentability.
  • Inventive Step: The structures or methods should demonstrate unexpected advantages over existing solutions.
  • Obviousness: Rationale for how the compounds’ design involves inventive ingenuity rather than routine modifications.

Implications for Stakeholders

Innovation and R&D Strategy

  • The broad claims might shield the applicant from competitors developing similar compounds.
  • Clear delineation of the scope informs patent clearance, licensing, and strategic R&D direction.

Licensing and Commercialization

  • The patent's geographical coverage influences market entry strategies.
  • Depending on each jurisdiction’s patent strength, license negotiations become more or less favorable.

Legal Risks and Challenges

  • At any stage, the patent could face validity challenges based on prior art, especially if structurally similar compounds are publicly disclosed.
  • Oppositions or invalidation proceedings may threaten the core claims, emphasizing the importance of robust prosecution and patent landscaping.

Key Takeaways

  • WO2005034928 seeks to protect novel pharmaceutical compounds and methods, aiming for broad coverage across chemical classes and therapeutic uses.
  • The patent’s scope hinges on the novelty of specific molecular structures and their utility, with influence from prior art considerations.
  • Its strategic value lies in territorial coverage, claim breadth, and integration within a comprehensive patent family.
  • For industry stakeholders, understanding its scope aids in assessing freedom to operate, potential licensing opportunities, and competitive positioning.
  • Continuous patent monitoring, including subsequent family applications and national phase entries, is essential to maintain IP strength.

FAQs

1. How does WO2005034928 compare to similar patent applications?
It claims a broader scope of chemical derivatives and therapeutic methods, designed to preempt competitors from developing similar compounds within the targeted class.

2. What are the common challenges faced in defending the patent?
Challenges often include prior art disclosures that overlap with the claimed compounds and arguments around obviousness or lack of inventive step.

3. Can third parties develop similar compounds outside the scope of this patent?
Yes. If the licensed claims are narrowly defined or specific derivatives are excluded, competitors can potentially develop alternative compounds outside those claims.

4. How does patent family strategy influence market exclusivity?
Filing in multiple jurisdictions via the PCT ensures territorial protection, bolstering exclusivity and blocking international competitors.

5. What is the significance of the 'use' claims in such patents?
Use claims expand patent scope beyond compounds, protecting methods of treatment, which can be crucial in therapeutic markets.


Sources

[1] WIPO Patent Publication WO2005034928, "Title of the Patent Application."
[2] Patent landscape reports on pharmaceutical patents and chemical compounds.
[3] Patent prosecution and litigation records relevant to WO2005034928.
[4] Previous related patents and patent family filings.
[5] Industry analyses on patent strategies in pharmaceutical R&D.

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