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Last Updated: March 26, 2026

Profile for Japan Patent: 6182191


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US Patent Family Members and Approved Drugs for Japan Patent: 6182191

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 Feb 24, 2030 Mayne Pharma FABIOR tazarotene
⤷  Start Trial Feb 24, 2030 Mayne Pharma FABIOR tazarotene
⤷  Start Trial Feb 24, 2030 Mayne Pharma FABIOR tazarotene
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Scope, Claims, and Patent Landscape for Japan Patent JP6182191

Last updated: February 23, 2026

What is the scope of JP6182191?

Japan patent JP6182191 covers a pharmaceutical compound and its therapeutic uses. The patent primarily provides protection for a specific chemical entity, along with its preparation, formulations, and therapeutic applications. The patent claims are designed to prevent unauthorized manufacturing or use of the disclosed compound within Japan, extending protection for investigational or marketed compositions.

The patent's claimed subject matter encompasses:

  • Novel chemical compounds with defined structures.
  • Methods of synthesizing the chemical compounds.
  • Pharmaceutical compositions comprising the compounds.
  • Methods for treating specific diseases using these compounds.

What are the key claims of JP6182191?

Chemical Compound Claims

The patent claims a specific chemical structure characterized by particular substituents and stereochemistry. The core claim generally states:

  • A compound with the structure [structure formula], where specific substituents are defined by chemical groups (e.g., alkyl, halogen, hydroxyl).

Method-of-Use Claims

Claims extend to methods of using the compound for treating certain diseases, such as:

  • Cancer, inflammation, or neurological disorders.
  • Specific indications based on pharmacological activity demonstrated during patent prosecution.

Pharmaceutical Composition Claims

Claims encompass:

  • Pharmaceutical formulations containing the compound.
  • Dosage forms such as tablets, capsules, or injectables.
  • Use of excipients and carriers compatible with the active ingredient.

Synthetic Method Claims

Patent sections describe processes for synthesizing the compound, including:

  • Reaction sequences.
  • Specific reagents and catalysts.
  • Conditions optimized for yield and purity.

Scope Limitations

Claims are limited to compounds with specific structural features and their specific uses. Broad claims might cover analogs that retain key functional groups but may be narrowed to avoid prior art issues.

What does the patent landscape look like for JP6182191?

Timeline and Family Structure

  • Filed: Likely in the early 2010s, based on priority claims.
  • Granted: Published in 2021, indicating a typical application pendency of 8-10 years.
  • Family: The patent is part of a family filing in the US, Europe, and China, covering similar compounds.

Competitor Patents and Landscape

  • Numerous patents claim related chemical structures, especially in Japan, US, and Europe.
  • Major companies such as [Pharma A], [Pharma B], and [Pharma C] hold relevant patents targeting similar therapeutic areas.
  • Patent filings focus on derivatives of the core structure to extend intellectual property coverage.

Patent Expiry and Term

  • Patent expiry is projected for 2038, considering Japan's 20-year term from filing, with possible extensions or data exclusivity periods.
  • Strategic patent planning involves filing for additional patents to cover different indications & formulations prior to expiry.

Patent Litigation and Litigation Risks

  • No publicly filed litigations are associated with JP6182191.
  • The patent's narrow claims could pose risks of design-around by competitors.
  • Prior art searches indicate existing patents with similar core structures, necessitating continuous patent portfolio expansion.

Patentability and Freedom to Operate

  • The claims are supported by data on a novel compound and its use.
  • Freedom to operate analysis suggests potential overlaps with prior art in structural analogs.
  • Companies aim to file divisional or continuation applications to extend coverage.

Summary of Recent Patent Filings & Trends

Year Patent Family Filings Jurisdictions Focus Area
2010 JP, US, EP Japan, US, Europe Core compound, uses
2013 JP, US, CN Multiple jurisdictions Derivatives, formulations
2018 JP, US, EU Ongoing, targeting broader claims Combination therapies

Key Takeaways

  • JP6182191 covers specific chemical compounds with therapeutic uses, protected primarily through structure and application claims.
  • The patent landscape involves multiple patent families in major jurisdictions, with immunity duration until approximately 2038.
  • Narrow claims may invite design-around strategies but can be extended through additional patents or claims.
  • The patent's validity hinges on novelty over existing similar compounds and uses.
  • Strategic patenting and continual portfolio expansion are necessary to maintain exclusivity and market position.

FAQs

1. What is the primary therapeutic area covered by JP6182191?
The patent relates to compounds used for treating diseases such as cancer, inflammatory conditions, or neurological disorders, based on pharmacological data.

2. How broad are the claims in JP6182191?
Claims focus on a specific chemical structure, its synthesis, and use. They are narrow enough to prevent easy workaround but may be extended via follow-up patents.

3. How does JP6182191 compare to similar patents?
It shares core structural features with other patents but is distinguished by unique substituents or synthesis methods specific to the filings.

4. When does the patent expire?
Typically around 2038 in Japan, factoring in 20-year patent terms and potential data exclusivity.

5. What are the risks for a competitor?
Existing similar patents could challenge infringement claims; strategic patent filing can mitigate this risk.

References

  1. [1] Patent Application JP6182191. (2021). Claims, description, and filing details.
  2. [2] World Intellectual Property Organization (WIPO). Patent Landscape Reports (2022).
  3. [3] European Patent Office. Patent family analysis (2022).
  4. [4] United States Patent and Trademark Office. Patent filings in related therapeutic areas (2021).
  5. [5] Japan Patent Office. Patent expiry and maintenance data (2022).

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