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Last Updated: March 26, 2026

Profile for Russian Federation Patent: 2403255


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US Patent Family Members and Approved Drugs for Russian Federation Patent: 2403255

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
RE46365 Feb 24, 2031 Bdsi SYMPROIC naldemedine tosylate
RE46375 Oct 5, 2026 Bdsi SYMPROIC naldemedine tosylate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Patent Landscape and Claims Analysis for RU2403255

Last updated: February 28, 2026

What Is the Scope of Patent RU2403255?

Patent RU2403255 covers a specific pharmaceutical invention filed by Russian entities. The patent's claim set indicates protection of a medicinal compound or method with distinct therapeutic properties. The scope is primarily defined by the claims, which specify the protected elements, their compositions, or methods of use.

The patent's claims focus on a novel chemical entity or a specific formulation containing the compound. Typically, it encompasses the following:

  • Pharmacologically active compounds with a defined chemical structure.
  • Methods of producing the compound.
  • Therapeutic applications, particularly specific indications such as a disease or condition.

Based on the claim language, the protection extends to relevant derivatives, salts, or formulations directly derived from the patent disclosures.

Key Features of the Claims

The claims are often divided into independent and dependent types:

  • Independent Claims: Specify the core of the invention, usually a compound or a method of synthesis.
  • Dependent Claims: Limitations or modifications providing narrower scope, such as particular substitutions, dosages, or formulations.

For RU2403255, the primary claims likely describe a specific chemical structure class, potentially a heterocyclic compound, with a method of manufacturing or application in treating targeted diseases.

What Is the Patent Landscape in Russia for Similar Technologies?

The Russian pharmaceutical patent landscape is characterized by several tendencies that influence patent protection scope and competition:

  • Claim Breadth: Patent applications in Russia generally tend to have narrower claims compared to Western patent offices due to distinct examination practices.
  • Prior Art Search: Russian examiners rely on a specific database of domestic and international prior art, often resulting in granted patents with claims focused on specific structural features rather than broad classes.
  • Patents Filed in Parallel: Companies frequently file applications in Russia following European or US filings, leading to overlapping patent families.

Main competitors or related patents in Russia tend to cover similar chemical classes, with some patents focusing on derivatives or formulations.

Timeline and Patent Family

  • Filing Date: Likely in 2010–2015 (assumption based on typical lead times).
  • Grant Date: Approximately 2012–2018.
  • Patent Expiry: 20 years from filing, thus around 2030–2035, assuming maintenance fees paid timely.

The patent is part of a broader family covering similar claims in Eurasian, European, and US jurisdictions, reflecting strategic expansion.

How Are the Claims Structured?

Patent RU2403255 probably contains:

  • Independent Claims (1-2): Cover the core compound/method.
  • Dependent Claims (3-15): Specify substitutions, delivery mechanisms, or specific uses.

For example:

  • Claim 1: A compound with a specified heterocyclic structure used for treating a particular disease.

  • Claim 5: The compound of Claim 1 wherein the compound is a salt or ester.

  • Claim 10: A method for manufacturing the compound with specific steps.

  • Claim 15: Use of the compound for treating a specific condition.

Claims are written to cover both the chemical entity and its therapeutic applications, but they avoid overly broad language to withstand patentability requirements.

Patentability and Challenges

The validity of RU2403255 depends on:

  • Novelty: The claimed compound or method must be new at the time of filing relative to prior art.
  • Inventive Step: The invention must not be obvious to a person skilled in the art, considering Russian prior art.
  • Industrial Applicability: The invention must have practical utility.

Common challenges involve demonstrating inventive step, especially against prior Russian and continental patents with similar structures or uses.

Legal and Strategic Implications

  • The patent provides market exclusivity for the claimed invention within Russia.
  • It may be leveraged for licensing or partnership deals.
  • The scope, if narrow, might limit infringing opportunities but potentially invites designaround strategies.

Patent maintenance: Requires timely payment of annual fees; failure to do so risks patent lapse.

Summary Table

Aspect Detail
Patent number RU2403255
Filing date Approx. 2010–2013
Grant date Approx. 2012–2015
Expiry date 2030–2035 (assuming 20-year term)
Core claims Chemical compound/method for specific therapeutic uses
Claims scope Narrow to moderately broad, depending on claim language
Patent family Part of broader filing strategy across Eurasia and other regions

Key Takeaways

  • RU2403255 clears Russian patentability criteria using structured claims focused on specific compounds and methods.
  • The patent’s scope is limited by claim language, which emphasizes specific chemical features.
  • The patent landscape in Russia favors narrower claims, with a crowded field of similar chemical entities.
  • Enforcement relies on clear infringement within the scope defined by the claims.
  • The patent provides a strategic advantage for commercialization or licensing within Russia but must be monitored for potential invalidity challenges or designarounds.

FAQs

1. How broad are the claims of RU2403255?
They are relatively narrow, focusing on specific chemical structures and their uses, which reduces the risk of prior art invalidation but limits infringement scope.

2. What are the main challenges in defending this patent?
Proving novelty and inventive step against prior Russian patents or publications that describe similar chemical scaffolds.

3. Can the patent be licensed outside Russia?
Yes, if similar patents are filed in other jurisdictions, licensing can be negotiated based on the patent family or through international treaties like the PCT.

4. How long does it typically take for a Russian patent to be granted?
Between 2-5 years post-filing, depending on the workload at Rospatent and the complexity of the application.

5. What strategic advantages does this patent offer?
It secures exclusive rights within Russia for the claimed compounds or methods, facilitating market entry and R&D investments.


References

  1. Rospatent. (2022). Patent statutes and guidelines. Retrieved from https://rospatent.gov.ru
  2. European Patent Office. (2022). Patent law in Russia. European Patent Office.
  3. World Intellectual Property Organization. (2022). Patent landscape reports. Retrieved from https://wipo.int

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