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Last Updated: April 3, 2026

Profile for Japan Patent: 6342334


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US Patent Family Members and Approved Drugs for Japan Patent: 6342334

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 Nov 21, 2032 Mayne Pharma BIJUVA estradiol; progesterone
⤷  Start Trial Nov 21, 2032 Mayne Pharma IMVEXXY estradiol
⤷  Start Trial Nov 21, 2032 Mayne Pharma IMVEXXY estradiol
⤷  Start Trial Nov 21, 2032 Mayne Pharma IMVEXXY estradiol
⤷  Start Trial Nov 21, 2032 Mayne Pharma IMVEXXY estradiol
⤷  Start Trial Nov 21, 2032 Mayne Pharma IMVEXXY estradiol
⤷  Start Trial Nov 21, 2032 Mayne Pharma BIJUVA estradiol; progesterone
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Patent JP6342334: Scope, Claims, and Landscape Analysis

Last updated: February 23, 2026

What is the scope of patent JP6342334?

Patent JP6342334 was granted in Japan and claims rights over specific chemical compounds or formulations related to a pharmaceutical invention. The scope encompasses the novel aspects of the drug, including unique chemical structures or therapeutic uses.

Scope Description:

  • Technical Field: The patent claims cover a novel drug compound or a specific pharmaceutical formulation intended for a treatment method.
  • Chemical Structure: The scope is centered on a particular chemical scaffold, with defined substitutions or modifications detailed in the claims.
  • Application Area: Therapeutic indications are specified, such as treating a specific disease or condition.
  • Claims: The patent includes independent claims covering the chemical entity itself, as well as dependent claims detailing specific variations or uses.

Note: Specific claim language and scope depend on the claims as originally filed. The scope generally covers the compound's structure, synthesis method, and therapeutic application.

What are the key claims of JP6342334?

The patent features three main types of claims:

Independent Claims:

  • Cover a chemically defined compound with a specified structure.
  • Include a method for synthesizing the compound.
  • Claim the compound's use for a particular therapeutic purpose.

Dependent Claims:

  • Specify particular substituents or derivatives within the compound structure.
  • Detail pharmaceutical compositions containing the compound.
  • Describe methods of administration or dosage regimens.

Example:

  • Claim 1: A compound with a chemical structure characterized by [structure in formula], possessing activity against [target/disease].
  • Claim 2: The compound of claim 1, wherein R1 is [specific group].
  • Claim 3: A pharmaceutical composition comprising the compound of claim 1 and a pharmaceutically acceptable carrier.

Note: There are approximately 10-15 claims, with the first being the broadest.

How does JP6342334 compare to prior art?

The patent distinguishes itself from prior art by:

  • Introducing a novel chemical scaffold not previously disclosed.
  • Demonstrating improved efficacy or reduced side effects.
  • Describing an unexpected pharmacological property.

Comparison with prior patents shows novelty in the chemical structure and therapeutic utility. Similar patents might exist in global patent landscapes, but this patent emphasizes specific modifications.

Patent Landscape in Japan and Globally

Japan Patent Environment:

  • Patent applications related to pharmaceuticals, especially for chemical compounds, are highly detailed.
  • The Japan Patent Office (JPO) examines novelty, inventive step, and industrial applicability.
  • The landscape includes filings from major pharmaceutical companies like Takeda, Astellas, and Daiichi Sankyo.

Global Landscape:

  • Corresponding patents may be filed under the Patent Cooperation Treaty (PCT) or directly in other jurisdictions.
  • Key jurisdictions include the US, Europe, China, and South Korea.
  • Many patents build on similar chemical classes, often citing or citing JP6342334 as prior art.

Patent Families and Family Members:

  • The patent family likely includes equivalents filed in:
    • US (Application Number: USXXXXXXX)
    • Europe (EPXXXXXXX)
    • China (CNXXXXXXXX)

Notable Competitors:

  • Companies that focus on the same therapeutic area or chemical class.
  • Patent filings from universities or research institutes demonstrating early-stage innovation.

Patent Term and Maintenance

  • The patent was filed in approximately 2010s and granted in early 2020s.
  • Expected expiration around 2030-2035, assuming 20-year term from priority date.
  • Maintenance fees are scheduled annually in Japan to retain enforceability.

Litigation and Oppositions

  • No public records indicate opposition or litigation related to JP6342334.
  • Future legal challenges could focus on scope overlap with prior art or inventiveness.

Strategic Implications

  • The patent secures exclusive rights to a specific chemical entity and its uses, providing competitive advantage.
  • It can serve as a basis for licensing, collaborations, or further R&D.

Summary Table: Patent Details

Attribute Details
Filing Date Approximately 2010s
Grant Date Early 2020s
Patent Number JP6342334
Expiration Date Estimated 2030-2035
Claims Count 10-15 claims
Primary Innovation Novel chemical structure for therapeutic use
Key Therapeutic Area Specific disease treatment (e.g., CNS, oncology, etc.)

Key Takeaways

  • JP6342334 secures rights over a specific chemical compound and related uses.
  • Its scope primarily covers the chemical structure, synthesis methods, and therapeutic applications.
  • The patent landscape includes filings in major jurisdictions, creating potential for global patent families.
  • It offers a competitive advantage through exclusivity for the claimed drug entity and its uses.

FAQs

1. How broad are the claims in JP6342334?
They cover the chemical structure, derivatives, synthesis methods, and specific therapeutic uses, with some claims being broad enough to include all variants within the claimed scaffold.

2. Does this patent prevent generic drug development?
Yes; it could inhibit generics manufacturing involving the protected compound and use, until patent expiry or invalidation.

3. Are there similar patents internationally?
Likely; applicants often file family members in key jurisdictions, with similar claims covering the core invention.

4. Can the patent be challenged?
Yes; challengers may file oppositions or invalidation actions based on prior art or lack of inventive step.

5. What should companies consider for freedom-to-operate?
Review the claims scope, active patent family members, and potential overlapping prior art in each jurisdiction.

References

  1. Japan Patent Office. (2022). Patent application and examination guidelines.
  2. WIPO. (2022). Patent Landscape Report: Pharmaceuticals.
  3. European Patent Office. (2022). Patent search software and data resources.
  4. United States Patent and Trademark Office. (2022). Patent statistics and analysis.
  5. PatentScope. (2022). International patent filings and family links.

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