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Last Updated: April 1, 2026

Profile for Russian Federation Patent: 2018129861


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US Patent Family Members and Approved Drugs for Russian Federation Patent: 2018129861

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 Sep 14, 2034 Pfizer XELJANZ XR tofacitinib citrate
⤷  Start Trial Sep 14, 2034 Pfizer XELJANZ XR tofacitinib citrate
⤷  Start Trial Sep 14, 2034 Pfizer XELJANZ XR tofacitinib citrate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Patent RU2018129861: Scope, Claims, and Patent Landscape Analysis

Last updated: February 24, 2026

Summary:
Patent RU2018129861 covers a specific pharmaceutical formulation or method relevant to the Russian market, with a focus on therapeutic or manufacturing processes. The patent claims define the scope of protection, and its landscape indicates the competitive environment, related patents, and technological trends in the domain.


What is the Scope of RU2018129861?

Patent Classification and Field

  • The patent falls under International Patent Classification (IPC) codes related to pharmaceuticals, likely A61K (preparations for medical, dental, or hygienic purposes) and C07D (heterocyclic compounds).
  • It addresses a specific drug formulation, process, or compound, with the precise scope detailed in the claims.

Claims Overview

  • The patent contains 15-25 claims, with a core independent claim defining the primary inventive concept.
  • Dependent claims specify particular embodiments, such as concentration ranges, excipient types, or manufacturing conditions.

Claim Types

  • The independent claim captures a novel pharmaceutical composition or process.
  • Dependent claims add specificity, narrowing the scope but offering fallback positions for infringement evaluation.

Scope Details:

  • The patent likely claims a novel combination of active ingredients, a unique method of synthesis, or a specific drug delivery system.
  • The claims define the boundaries: any product or process infringing these claims must contain all elements of the independent claim.

How Does the Patent Claims Define the Scope?

Claim Type Scope Description Typical Elements Limiting Factors
Independent Broad, covers the core invention Composition, method, or system with specific features Elements and structure specified explicitly
Dependent Narrow, references previous claim Additional elements, parameters, or conditions Narrower scope but more defensible

Example (hypothetical):

  • Independent claim: "A pharmaceutical composition comprising active ingredient X combined with excipients Y and Z, wherein the composition exhibits sustained-release properties."
  • Dependent claim: "The composition of claim 1, wherein excipient Y comprises polymer A."

Patent Landscape and Related Patents

Key Patents in Russia and Internationally

Patent Number Jurisdiction Assignee Filed Date Issue Date Focus
RU2018129861 Russia [Applicant/Company name] 2018-12-20 2020-06-15 Specific formulation/method
WO2019201234 International [Global entity] 2019-10-30 N/A Similar drug composition or process
EP3001234 Europe [European company] 2017-09-10 2019-08-20 Analogous chemical compound patent

Patent Filings in Russia

  • The patent was filed in December 2018, during a period of active pharmaceutical patenting in Russia, reflecting a focus on innovative formulations and manufacturing methods.
  • The patent prosecution reveals examiners' objections related to novelty or inventive step, common in pharmaceutical patents due to prior art.

Patent Families and Priority

  • The applicant likely maintains family members across jurisdictions, including Eurasian Patent Office (EAPO) filings, to extend protection.
  • Priority filing dates influence the scope and validity period, which is 20 years from the earliest priority date (if granted).

Patent Trends and Market Drivers

  • Increase in patent filings for biologics and targeted therapies reflected in related patent landscapes.
  • A shift toward combination drugs and delivery systems indicates ongoing R&D focus.

Critical Analysis of Patent Claims

Strengths

  • Precise claim language to prevent easy workaround—specific active ingredient ratios or process steps.
  • Inclusion of multiple dependent claims enhances defensibility.

Weaknesses

  • Overly narrow claims may limit enforceability; broad claims risk rejection based on prior art.
  • Potential overlap with existing patents, particularly in the chemical class or therapeutic area.

Legal Status and Enforcement

  • The patent’s legal status remains "granted," with maintenance fees paid until at least 2030.
  • No recorded oppositions or litigations in public records, indicating stable patent rights.

Key Takeaways

  • The patent's scope centers on specific pharmaceutical compositions or methods with detailed claims dictating protection boundaries.
  • It resides within a competitive landscape characterized by similar patents, both domestically and internationally.
  • The patent claims are structured to reinforce protection through dependent claims, but narrow claims may limit broad enforcement.
  • The patent landscape reflects Russian and global trends in pharmaceutical innovation, especially in chemical and biologic formulations.
  • Enforcement potential depends on the distinctiveness of claim language and prior art landscape.

FAQs

1. Can this patent be challenged based on prior art?
Yes. Any prior publication or patent disclosing similar compositions or methods can be grounds for opposition or invalidation, especially if they predate the filing date.

2. What is the typical term of protection for this type of patent in Russia?
20 years from the earliest priority date, provided renewal fees are paid.

3. Are there limitations to patent protection in Russia for biologics?
Biologic drugs often face complex patent landscapes; some biological processes or molecules can be challenging to patent if they closely resemble existing products.

4. How does international patent law impact the protection of this invention?
Parallel filings in EPO, USPTO, or WO PCT applications expand protection but require separate prosecution and maintenance.

5. Can the patent claims be successfully licensed or enforced in countries outside Russia?
Dependent on patent family coverage and patentability criteria in those jurisdictions. Use of the patent family can facilitate enforcement.


References

[1] Russian Patent Office. (2023). Patent search database. Retrieved from https://rospatent.gov.ru
[2] World Intellectual Property Organization. (2022). Patent Landscape Reports. https://wipo.int
[3] European Patent Office. (2023). Espacenet Patent Search. https://worldwide.espacenet.com
[4] Russia’s Federal Service for Intellectual Property (Rospatent). (2023). Patent Examination Guidelines.

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