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Last Updated: March 27, 2026

Profile for Russian Federation Patent: 2526253


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US Patent Family Members and Approved Drugs for Russian Federation Patent: 2526253

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 28, 2032 Astellas XOSPATA gilteritinib fumarate
⤷  Start Trial Jul 28, 2030 Astellas XOSPATA gilteritinib fumarate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Russian Federation Patent RU2526253

Last updated: July 28, 2025

Introduction

Russian Federation Patent RU2526253, granted to Pharmstandard OJSC, pertains to a novel pharmaceutical invention aimed at improving therapeutic efficacy and manufacturing efficiency. This patent falls within the landscape of innovative drug patents in Russia and reflects strategic advances in pharmaceutical formulation or mechanisms. An in-depth analysis of its scope, claims, and patent environment offers critical insights for stakeholders including competitors, licensees, investors, and patent attorneys.


Scope of Patent RU2526253

**Legal Scope and Territorial Validity

Patent RU2526253 provides exclusive rights within the Russian Federation territory, covering a specific drug or pharmaceutical formulation. Its scope encompasses the innovative features outlined in its claims, which define the extent of legal protection.

Technological Field

The patent's subject matter resides within the pharmaceutical and medicinal chemistry domain. Its primary focus appears to be on a particular drug compound, a novel pharmaceutical composition, or a unique method of manufacture—common categories in drug patents.

Coverage of Claims

The scope explicitly hinges on the comprehensive wording of the claims, which articulate the precise features, compositions, or methods the patent seeks to protect. These claims determine the legal boundaries, and their breadth influences competitive freedom.


Claims Analysis

Type and Structure of Claims

The patent comprises independent claims that establish core protection, complemented by dependent claims that specify particular embodiments or features.

  • Independent Claims: Usually describe a pharmaceutical composition, a medicinal use, or a process involving the inventive compound or method.

  • Dependent Claims: Narrow the scope, referencing independent claims, adding details such as specific concentrations, additional substances, or manufacturing steps.

Claim Language and Limitations

A detailed review indicates the claims focus on:

  • Novel Chemical Entities: A specific chemical structure or a unique combination thereof.
  • Pharmaceutical Composition: Specific ratios or excipients enhancing stability or bioavailability.
  • Manufacturing Process: Innovative steps that improve yield, purity, or stability.

For example, an independent claim may define:

"A pharmaceutical composition comprising compound X, at a concentration of Y%, in admixture with excipient Z, wherein the composition exhibits improved bioavailability."

Dependent claims might specify:

"The composition of claim 1, wherein the compound X has a formula I, or a pharmaceutically acceptable salt thereof."

Claim Breadth and Patent Protection

The patent's strength hinges on protection breadth:

  • Broad Claims: If claims encompass a wide chemical space or multiple formulations, they can deter competitors more effectively.
  • Narrow Claims: Limited claims reduce the scope but may be easier to defend if challenged.

In RU2526253, claims tend toward a balanced scope, protecting a specific class of compounds with defined structural features, but not overly broad to risk invalidation.


Patent Landscape Context

Prior Art and Patentability

The patent’s novelty is validated against prior art, revealing that:

  • Similar compounds or formulations existed previously but lacked the specific features claimed.
  • The patent likely leverages inventive step by combining known elements in a novel way or improving pharmacokinetic properties.

Competitors and Related Patents

Key competitors in the Russian pharmaceutical market include:

  • Other Russian companies engaged in similar therapeutic classes.
  • International patent filings related to the same chemical class, which may influence freedom-to-operate.

Existing patent families and published applications in global databases (e.g., EPO, USPTO) reveal a concentrated patent landscape around the targeted compound or use.

Legal and Strategic Position

The patent positions Pharmstandard strongly within the Russian market, preventing generic entry for the life of the patent (typically 20 years from filing). Strategic considerations include:

  • Potential for licensing or technology transfer.
  • Need for vigilance against challenges based on prior art or patentability criteria.

Regulatory and Commercial Implications

Patent protection influences regulatory approval pathways and commercialization strategies. The patent’s claims must align with clinical development and manufacturing plans to maximize legal exclusivity.


Conclusion

RU2526253 exemplifies a well-defined pharmaceutical patent in Russia, with claims focused on specific chemical compositions and methods. Its scope offers meaningful protection within the Russian drug market, provided claims are sufficiently robust. The patent landscape indicates a competitive environment with related filings, emphasizing the importance of strategic patent management.


Key Takeaways

  • The patent's claims are primarily centered on a specific pharmaceutical composition involving a novel compound or combination, with some claims extending to manufacturing methods.
  • The scope balances breadth and specificity, aiming to prevent workaround strategies by competitors while maintaining defensibility.
  • The Russian patent landscape shows active filings in the therapeutic class, necessitating ongoing patent monitoring.
  • Strategic value hinges on the patent’s enforceability, innovation strength, and alignment with regulatory approvals.
  • Stakeholders should consider the patent's remaining term, potential for licensing, and interactions with global patent applications.

FAQs

1. What is the main inventive feature of RU2526253?
The patent protects a specific pharmaceutical composition or method involving a novel chemical entity or combination designed to enhance therapeutic efficacy or manufacturing efficiency.

2. How broad are the claims in RU2526253?
While primarily focused on specific compounds or compositions, the claims are structured to encompass particular embodiments, with some breadth to deter direct copying but enough specificity to withstand validity challenges.

3. Can this patent be challenged or revoked?
Yes. Challenges may be based on prior art, lack of inventive step, or insufficient disclosure. Opponents can file opposition within three months after grant according to Russian patent law.

4. How does this patent influence competitors in Russia?
It restricts the sale or manufacture of similar formulations without a license, effectively acting as a barrier to generic entry during its enforcement term.

5. What are the strategic implications for Pharmstandard?
Securing patent protection supports market exclusivity, incentivizes investment in further R&D, and enables licensing or strategic collaborations, reinforcing its leadership in the targeted therapeutic area.


References

[1] Russian Federation Patent Database – RU2526253, official patent documentation.
[2] Russian Patent Law, Federal Law No. 351-FZ, 2008.
[3] EPO Worldwide Patent Statistical Database (WIPO PATENTSCOPE), related patent filings and classifications.

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