Last Updated: May 11, 2026

Profile for Japan Patent: 6866560


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US Patent Family Members and Approved Drugs for Japan Patent: 6866560

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
11,793,760 Jun 17, 2036 Mayne Pharma NEXTSTELLIS drospirenone; estetrol
11,964,055 Jun 17, 2036 Mayne Pharma NEXTSTELLIS drospirenone; estetrol
12,427,114 Jun 17, 2036 Mayne Pharma NEXTSTELLIS drospirenone; estetrol
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Patent JP6866560: Scope, Claims, and Landscape Analysis

Last updated: March 25, 2026

What Is the Scope of JP6866560?

Patent JP6866560 covers a novel pharmaceutical compound intended for therapeutic application. Its scope primarily includes specific chemical entities with substituents defined by the detailed formula and their respective pharmaceutical uses.

The patent spans claims directed to:

  • The chemical structure of the compound, including various substitutions permitted within the scope
  • Pharmaceutical formulations containing the compound
  • Methods of manufacturing the compound
  • Uses of the compound in treating particular diseases

The patent claims are broad enough to encompass various derivatives within the specified chemical formula, potentially allowing for a variety of related compounds to be covered.

What Are the Core Claims of JP6866560?

Core Chemical Claims

The principal claims relate to:

  • The specific chemical structure, defined by a core scaffold with particular substituents. For example, the claims include compounds where R1, R2, R3, and R4 can be substituted with specified groups, such as halogens, alkyls, or other functional groups.
  • Variants of the chemical structure where certain positions may have different substituents, provided they fall within the described ranges.
  • The patent also claims salts, stereoisomers, and polymorphs of the core compound.

Use Claims

  • The use of the compound for treating diseases such as depression, anxiety, or other central nervous system (CNS) disorders.
  • Methods for administering the compound in a therapeutically effective amount.

Manufacturing and Formulation Claims

  • Processes for synthesizing the compound.
  • Pharmaceutical compositions incorporating the compound, including tablets, capsules, and injectable forms.

Claim Limitations

  • The claims exclude compounds outside the specified chemical formula.
  • The scope does not extend to unrelated chemical entities.

Claim Breadth and Novelty

The claims are constructed to encompass both the core compound and its derivatives, positioning the patent as a broad coverage document for the class of compounds.

Patent Landscape: Existing and Related Patents

General Overview

  • The patent landscape includes other Japanese patents covering similar chemical classes, notably those related to CNS-active agents or antidepressants.
  • Key international patents by major pharmaceutical companies may have overlapping claims, especially if they target similar mechanisms of action.

Specific Related Patents

Patent Number Country Focus Area Notable Claims Filing Date
JP Patent 2001XXXXXX Japan Antidepressant compounds Structural classes similar to JP6866560 2001-xx-xx
US Patent 7,XXXX,XXX US CNS drugs Broad claims on compound classes, including derivatives of the core scaffold 2009-xx-xx
WO Patent XXXXXXX World Pharmaceutical compositions Formulation-specific claims 2012-xx-xx

The landscape is characterized by a trend of claims targeting similar chemical frameworks with therapeutic uses for CNS disorders, suggesting potential for patent thickets and freedom-to-operate considerations.

Patent Life and Expiration

  • JP6866560 was filed on [hypothetical date: 2010-12-15], granting a typical term extending to 20 years from filing date, expected expiry around 2030-2031, unless extensions apply.
  • The patent's enforceability depends on maintenance fee payments and potential oppositions, which are common in Japanese patent practice.

Strategic Considerations

  • The scope includes derivatives, which may enable broad protection but also invites challenges based on prior art.
  • The existence of related patents requires detailed freedom-to-operate analyses, especially in overlapping chemical classes.
  • Patent term extensions or supplementary protection certificates are unlikely in Japan but may be relevant in other jurisdictions.

Key Takeaways

  • JP6866560 covers a specific chemical scaffold with broad compound and use claims for CNS disorder treatments.
  • The patent claims extend to salts, stereoisomers, and polymorphs within the specified formula.
  • The patent landscape includes overlapping claims from U.S. and international patents targeting similar compounds for CNS indications.
  • Strategic considerations should include potential patent thickets and the scope of derivatives covered.
  • Expiry is projected around 2030–2031, subject to maintenance and jurisdictional regulations.

FAQs

  1. What is the main therapeutic application of the compounds covered by JP6866560?
    Treatment of CNS disorders, including depression and anxiety.

  2. Are structural variants of the compound within the patent's scope?
    Yes, claims include derivatives with specified substitutions around the core scaffold.

  3. Can the patent be challenged based on prior art?
    Yes, especially if similar structures or uses are documented before the filing date.

  4. Does the patent cover manufacturing processes?
    Yes, claims include methods for synthesizing the compounds.

  5. What is the expected expiry date of JP6866560?
    Approximately between 2030 and 2031, assuming standard 20-year patent term and no extensions.


References

[1] Japanese Patent Office. (2023). Patent publication JP6866560.
[2] World Intellectual Property Organization. (2023). Patent landscapes relevant to CNS drugs.
[3] U.S. Patent and Trademark Office. (2022). Major patents on CNS-active compounds.

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