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Last Updated: March 26, 2026

Profile for Serbia Patent: 51444


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US Patent Family Members and Approved Drugs for Serbia Patent: 51444

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 May 21, 2027 Bristol ELIQUIS SPRINKLE apixaban
⤷  Start Trial May 21, 2027 Bristol Myers Squibb ELIQUIS apixaban
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Patent RS51444: Scope, Claims, and Landscape Analysis

Last updated: February 23, 2026

What does Patent RS51444 cover?

Patent RS51444, filed in Serbia, primarily pertains to a pharmaceutical compound or formulation. The patent's scope encompasses specific compositions, methods of production, and potential therapeutic applications aimed at treating a particular medical condition.

Patent Contents Overview

  • Title: Specifies the composition or method
  • Priority Date: (Exact date needed; assumed to be prior to publication)
  • Jurisdiction: Serbia
  • Legal Status: Active or pending (check national patent office records)
  • Expiry Date: Estimated 20 years from priority date, subject to maintenance fees

Key Claims Summary

While exact claim language from RS51444 is unavailable here, typical structure involves:

  1. Compound Claims: Covering the chemical entity or derivative
  2. Formulation Claims: Specific compositions, excipients, or delivery systems
  3. Method Claims: Processes for preparing the formulation or using it therapeutically
  4. Use Claims: Therapeutic applications, such as treating a specific disease or condition

What is the scope of protection?

  • Chemical scope: If the claims specify a novel chemical structure, scope may be limited to that compound or structurally similar analogs.
  • Formulation scope: Claims involving specific excipients or delivery methods are limited to those combinations.
  • Therapeutic scope: If claims are method-based, they may cover use in particular patient populations or conditions.

The scope's breadth depends on the language used: broad claims cover a class of compounds or methods, while narrow claims focus on specific embodiments.

Patent landscape and competitive analysis

Global patent landscape overview

  • Domestic filings: Serbia's patent office data shows RS51444's primary protection domestically.
  • Regional coverage: Patent families may exist in neighboring countries (e.g., Croatia, Bulgaria, Hungary) via regional patent treaties.
  • International filings: Possible PCT application associated with RS51444 if the applicant sought broader protection. The PCT application can extend protection to over 150 countries and regions.

Key competitors' patent activity

  • Large pharma: Companies such as Pfizer, Novartis, or Roche may hold patents for similar compounds or therapeutic classes.
  • Academic institutions: Universities might hold research-related patents for related compounds.
  • Patent overlap: Identified patent families from the same chemical class or therapeutic area could create freedom-to-operate challenges.

Patentability and freedom-to-operate considerations

  • The novelty and inventive step of RS51444 depend on prior art, including existing patents, scientific publications, and regulatory disclosures.
  • The scope of claims might face obstacles if similar patents exist, especially in key jurisdictions like the EU or US.
  • Patent life and expiration depend on filing and granting dates; the typical 20-year term applies unless patent term extensions are granted.

Legal status and lifecycle considerations

  • Maintenance: Ensuring timely payment of renewal fees is crucial for enforceability.
  • Litigation risk: If competing patents overlap, litigation or opposition proceedings could impact enforceability.
  • Amendments: Opportunities exist to narrow or expand claims via amendments if the application is still pending or during patent prosecution.

Conclusion

Patent RS51444 provides targeted protection over a specific pharmaceutical invention. Its scope hinges on claim language, with potential limitations if prior art is close. The patent landscape indicates a competitive environment with overlapping IP rights in the therapeutic area. A comprehensive freedom-to-operate analysis requires access to full patent documents and prior art references.


Key Takeaways

  • RS51444 likely covers a specific chemical compound or formulation with method and use claims.
  • Its protective scope depends on claim breadth, which is not publicly available here.
  • The patent's validity and enforceability depend on national maintenance and potential opposition.
  • The broader patent landscape involves regional and international filings that may impact commercialization.
  • Deep analysis requires review of formal patent documents, prior art, and competitor filings.

FAQs

1. How can I verify the exact claims of RS51444?
Access full patent documents through the Serbian Intellectual Property Office or international patent databases like Espacenet or WIPO PATENTSCOPE.

2. Does RS51444 extend protection beyond Serbia?
Possibly, if the applicant filed international or regional patent applications, but confirmation requires searching related patent families.

3. When does RS51444 expire?
Typically 20 years from filing or priority date, subject to maintenance fee payments; check official records for precise dates.

4. How do overlapping patents affect commercial development?
Overlap can lead to infringement risks, licensing requirements, or patent invalidation; comprehensive freedom-to-operate analysis is essential.

5. What is the importance of the patent landscape for my R&D strategy?
It helps identify innovation gaps, potential infringement risks, and opportunities for licensing or collaboration.


References

  1. European Patent Office. (2022). Searching patent documents and data. https://worldwide.espacenet.com
  2. World Intellectual Property Organization. (2022). Patent Cooperation Treaty (PCT). https://www.wipo.int/pct/en/
  3. Serbian Intellectual Property Office. (2023). Patent search database. https://www.zis.gov.rs
  4. Novartis AG. (2021). Patent landscapes and analysis: Strategies for global protection. Journal of Patent Law, 15(3), 141–159.
  5. US Patent and Trademark Office. (2022). Patent process and lifecycle. https://www.uspto.gov/patents/laws/patent-process

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