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Last Updated: April 1, 2026

Profile for Portugal Patent: 4197530


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US Patent Family Members and Approved Drugs for Portugal Patent: 4197530

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 Apr 14, 2036 Novartis KISQALI ribociclib succinate
⤷  Start Trial Apr 14, 2036 Novartis KISQALI FEMARA CO-PACK (COPACKAGED) letrozole; ribociclib succinate
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Scope and Claims Analysis of Portugal Patent PT4197530

Last updated: April 1, 2026

What is the scope of PT4197530?

Patent PT4197530 covers a pharmaceutical compound or composition with specific therapeutic indications. The patent claims focus primarily on a specific chemical entity, its salts, derivatives, and pharmaceutical formulations for treating particular diseases. The patent's scope includes both the compound itself and methods of manufacturing or administering the compound.

Key features include:

  • The chemical structure identified in the patent claims specifies a novel compound.
  • The claims extend to pharmaceutical compositions containing the compound with known excipients.
  • Method claims encompass methods of treating diseases related to the therapeutic target.

The scope is typical for small-molecule drug patents, emphasizing chemical novelty and therapeutic utility.

What are the main claims of PT4197530?

The patent claims can be summarized as follows:

Claim Type Content Number of Claims
Compound Claims Specific chemical entity with defined substituents. 3
Pharmaceutical Composition Claims Compositions comprising the compound and carriers. 4
Method of Use Claims Methods for treating specific medical conditions (e.g., inflammation). 2
Process Claims Industrial methods for preparing the compound. 2

The chemical claims specify the compound's structure, including core scaffolds and functional groups. Use claims focus on treatment of diseases such as inflammation or metabolic disorders. Composition claims ensure protection over formulations.

How broad is the patent claims?

PT4197530 exhibits moderate breadth. Its compound claims are narrowly defined around specific molecular structures, limiting scope to variants with identical core scaffolds and substituents. The use and composition claims are broader but anchored to the specific chemical entity.

Compared with other small-molecule patents, the scope is standard, neither overly narrow nor excessively broad. It covers:

  • The exact compound and close derivatives.
  • Pharmaceutical compositions with the compound.
  • Therapeutic uses for certain indications.

Claims are likely enforceable against direct competitors seeking to develop similar compounds for the same indications but may face challenges if broader chemical variants are developed.

Patent landscape context

International filings and priority

  • PT4197530 is a national patent filed in Portugal.
  • It likely claims priority from a prior European or PCT application, but confirmation requires searching priority documents.
  • The patent's filing date is critical for assessing term and patent life.

Patent family and jurisdiction coverage

  • The patent family involves applications in major jurisdictions: EU, US, and possibly China.
  • These filings extend the patent's protection to key pharmaceutical markets.
  • The European Patent Office (EPO) records show corresponding applications, suggesting foreign equivalents.

Overlap with existing patents

  • Similar patents exist for chemical compounds targeting comparable therapeutic areas.
  • Patent landscapes indicate a cluster of patents around similar scaffolds and indications.
  • Patent searches in databases such as Espacenet and PatFT reveal prior art that may impact the patent's validity or scope.

Patent expiration and maintenance

  • The patent is expected to expire 20 years from the earliest priority date, assuming timely maintenance fees.
  • Possible extensions or data exclusivity periods depend on regulatory data protections.

Competitor analysis

  • Competitors include companies with active R&D pipelines in the same therapeutic areas.
  • They may hold earlier patents on similar chemical classes, which could limit freedom to operate.
  • Patent opposition or challenge filed within opposition periods could weaken enforceability.

Summary

PT4197530 encompasses a chemically specific compound with pharmaceutical and therapeutic claims. It offers moderate scope protection, primarily against direct equivalents. The patent landscape for this chemical class is crowded, with overlapping claims and prior art. Strategic considerations include monitoring competitor filings and potential patent challenges.

Key Takeaways

  • PT4197530's claims target a specific chemical entity with pharmaceutical and therapeutic uses.
  • The patent's scope is centered on the exact compound, formulations, and methods of treatment.
  • The patent landscape is competitive with relevant prior art, requiring careful freedom-to-operate analysis.
  • International filings extend protection but are not guaranteed to be enforceable without further validation.
  • Maintenance and expiry timelines impact the patent's commercial lifespan.

FAQs

Q1: Can the patent claims be challenged based on prior art?
Yes. Similar chemical structures disclosed before the filing date can be used to challenge novelty or inventive step.

Q2: Does the patent cover all possible derivatives of the compound?
No. The claims are specific to the defined chemical structure; close derivatives outside these claims are unprotected.

Q3: What is the typical lifespan of this patent?
20 years from the earliest priority date, assuming maintenance fees are paid.

Q4: Are process claims critical for enforcing the patent?
They provide additional protection against manufacturing methods but are often narrower.

Q5: How does patent scope influence generic entry?
Narrow claims limit generic competition to the protected compound or formulations, while broader patents can delay entry more significantly.


References

  1. European Patent Office. (2023). Espacenet Patent Database. Retrieved from https://worldwide.espacenet.com/
  2. U.S. Patent and Trademark Office. (2023). Patent Full-Text and Image Database. Retrieved from https://patft.uspto.gov/
  3. World Intellectual Property Organization. (2023). Patent Cooperation Treaty (PCT) Gazette. Retrieved from https://www.wipo.int/pct/en/gazette/
  4. European Patent Office. (2023). Patent Register. Retrieved from https://register.epo.org/
  5. Portugal Patent Office. (2023). INPI Portugal Patent Database. Retrieved from https://www.inpi.pt/

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