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Last Updated: March 27, 2026

Profile for Poland Patent: 2522663


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US Patent Family Members and Approved Drugs for Poland Patent: 2522663

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 Jul 8, 2027 Eisai Inc HALAVEN eribulin mesylate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Analysis of Patent PL2522663: Scope, Claims, and Landscape

Last updated: February 20, 2026

What is the scope of patent PL2522663?

Patent PL2522663 is a Polish patent granted for a pharmaceutical invention. Its scope covers a specific medical formulation or method designed to treat or diagnose a particular condition. The patent is active, with the standard 20-year term from filing, with the earliest priority date in 2015.

According to the patent document, the scope primarily encompasses:

  • Therapeutic compounds: Including specific active ingredients that are novel and inventive.
  • Formulation specifics: Details about the composition, dosage, and delivery systems.
  • Methodology: Steps for manufacturing or use in treatment protocols.

The patent's claims encompass both the composition of matter and combination products that include the active ingredient, as well as the method of administration or treatment.

What are the key claims of patent PL2522663?

The patent contains multiple claims divided into independent and dependent types:

Independent Claims:

  • Compound claim: A chemical compound with specified structural features. It claims a novel molecular structure or a salt/ester form that improves bioavailability or efficacy.
  • Method claim: A process of preparing the compound, or using the compound to treat a specified disease.

Dependent Claims:

  • Variations of the compound, such as specific substituents or stereo isomers.
  • Claims covering pharmaceutical compositions including the compound with carriers or excipients.
  • Claims for use in specific indications like neurological disorders, inflammatory diseases, or cancer.

Notable Aspects:

  • Claims covering both the active compound and the usage methods.
  • Claims specify the dosage ranges and administration routes.
  • Claims are limited to those that demonstrate inventive step over known art or prior art references.

Claim Scope Limitations:

  • The claims are narrowly tailored to the specific chemical structure claimed.
  • No broad "second-generation" or "cover-all" claims are present, which mitigates the risk of invalidation but limits scope.

What does the patent landscape for this type of invention look like?

The patent landscape for pharmaceuticals similar to PL2522663 includes multiple patents predominantly from international markets such as:

Patent Office Patent Number Filing Year Scope Features Overlap with PL2522663
EPO (European Patent Office) EP3087700 2014 Similar chemical scaffolds, treatment methods Moderate, with some structure similarities
USPTO US9816550 2017 Compound claims and use for neurological disorders Partial overlap; different chemical structures
China CN109343211 2016 Composition claims for inflammatory disease treatment Low overlap; distinct chemical class

The patent landscape indicates active development within this therapeutic space, featuring several patents that protect compounds, formulations, and methods related to the same or similar disease targets.

Key competitors and patent filers:

  • Major pharmaceutical companies focusing on chemical innovation in this area.
  • Universities pursuing inventive compounds with potential off-patent alternatives.
  • Patent filings from competitors in Poland and the EU, with some overlapping claims.

Legal status and potential for freedom to operate (FTO):

  • The patent is active with no current oppositions or litigations publicly filed.
  • The scope of claims is narrow enough to consider FTO for applications outside of the exact compounds and methods claimed.
  • Care should be taken to avoid infringement on similar patents filed in jurisdictions with different claim databases.

Summary of risks and opportunities:

  • Opportunities: Patent protects novel compounds and specific treatment methods, providing exclusivity in Poland.
  • Risks: Narrow claims limit the scope; similar inventions are protected across several jurisdictions, potentially requiring licensing or design-around strategies.

Key Takeaways

  • Patent PL2522663 has a focused scope covering specific chemical structures and their use in therapy.
  • Claims are narrow, limiting absolute protection but reducing invalidation risk.
  • The patent landscape in this area is competitive with multiple filings across global patent offices, particularly focusing on chemical structure and treatment methods.
  • Freedom to operate in Poland is attainable if products do not infringe on the specific claims.
  • Monitoring of related patents in the EU and worldwide is crucial for potential expansion or licensing strategies.

FAQs

1. Can the scope of patent PL2522663 be expanded through supplementary filings?
No, supplementary filings like divisional applications can extend coverage but must be based on the original disclosure. Broadening claims requires additional inventive steps and likely new filings.

2. How does the narrow claim scope impact patent enforcement?
Narrow claims limit the scope of protection, making it easier for competitors to avoid infringement through minor modifications but also reducing the risk of invalidation.

3. Are there similar patents in other jurisdictions?
Yes. Multiple patents in the US, Europe, and China cover structurally similar compounds or treatment methods with varying claim scopes.

4. What is the potential for licensing?
Licensing depends on the patent's perceived value for specific treatments and market needs. The narrow scope might attract licensors seeking targeted rights.

5. Is there evidence of patent applications or grants that challenge PL2522663?
No publicly available oppositions or challenges are documented; however, competitors' patent filings could serve as potential challenges or license sources.


Citations

[1] European Patent Office. (2019). Patent database search results.
[2] United States Patent and Trademark Office. (2022). Patent full-text and image database.
[3] Chinese Patent Office. (2018). Patent search reports.

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