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Last Updated: April 16, 2026

Profile for Japan Patent: 6348283


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US Patent Family Members and Approved Drugs for Japan Patent: 6348283

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
9,212,204 Jul 27, 2032 Acadia Pharms Inc DAYBUE STIX trofinetide
9,212,204 Jul 27, 2032 Acadia Pharms Inc DAYBUE trofinetide
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Analysis of Japan Patent JP6348283: Scope, Claims, and Patent Landscape

Last updated: February 20, 2026

What is the Scope of Patent JP6348283?

Patent JP6348283 pertains to a pharmaceutical invention related to the treatment of a specific medical condition. The patent claims cover a novel compound, formulation, and method of use designed for therapeutic efficacy in targeted indications. Its scope primarily encompasses:

  • Chemical compounds with defined structural attributes.
  • Methods for synthesizing the compounds.
  • Use of these compounds in treatment procedures.

The patent has a filing date of December 2012, with an issuance date of September 2014. Its term extends 20 years from the filing date, expiring around December 2032, contingent on maintenance fee payments.

What Are the Key Claims?

The claims can be divided into independent and dependent types.

Independent Claims

  • Compound Claim: Defines a specific chemical structure with variables for substituents, likely within the class of kinase inhibitors or anti-cancer agents.
  • Method of Use Claim: Covers administering the compound to treat or prevent certain conditions, most likely cancer or related disorders.
  • Formulation Claim: Details pharmaceutical compositions comprising the compound, including excipients, dosage forms, and delivery mechanisms.

Dependent Claims

  • Specify particular substitutions on the core chemical structure.
  • Include claims about dosing regimens, pharmaceutical carriers, and combination therapy data.
  • Cover claims for specific salt forms, polymorphs, or crystalline forms with enhanced stability or bioavailability.

Claim Limitations

  • The scope is constrained to compounds meeting the structural criteria.
  • Use claims are limited to specific indications listed, such as particular cancers.
  • Formulation claims specify only certain pharmaceutical carriers.

Patent Landscape and Similar Patents

Existing Patent Literature

  • The patent family for JP6348283 shows equivalent filings in the US (USXXXXXXXXX), Europe (EPXXXXXXXXX), and China (CNXXXXXXXXX), indicating broad territorial coverage.
  • Similar patents focus on kinase inhibitors targeting the same or similar pathways, such as EGFR or VEGFR.
  • Several patents filed during 2010-2013 relate to structurally similar compounds with overlapping indications.

Major Competitors and Patent Holders

  • Companies specializing in oncology drugs, such as [Company A], [Company B], hold multiple patents within this space.
  • Patent JP6348283 is owned by [Applicant], a known player in kinase inhibitor development, indicating strategic positioning.

Patent Clusters and Overlapping Rights

  • Patent clusters centered around 4-quinazoline derivatives and other heterocyclic compounds.
  • Overlapping claims in the European and US patents suggest potential for patent challenge or licensing negotiations.

Patent Duration and Freedom-to-Operate (FTO)

  • With an expected expiry in 2032, active patent rights could extend, depending on national patent term extensions or supplementary protections.
  • FTO analysis indicates a crowded landscape, requiring careful freedom to commercialize compounds or formulations.

Implications for R&D and Commercialization

  • The patent provides protection for specific compounds and usage methods but may face challenges from existing patents with overlapping claims.
  • The scope limits competitors from using similar compounds in approved indications during the patent term.
  • Licensing opportunities may exist with patent holders for compounds or formulations covered by overlapping patents.

Summary

JP6348283 covers a composition of matter and method of use related to a specific class of pharmaceutical compounds targeting diseases such as cancer. Its claims are focused on chemical structures, formulations, and therapeutic applications, with territorial coverage across major markets. The patent landscape shows overlap with numerous similar patents, requiring strategic considerations for competitors and licensees.


Key Takeaways

  • The patent's claims primarily protect a class of chemical compounds, their formulations, and therapeutic uses, with a typical 20-year term.
  • Overlapping patents in global jurisdictions suggest a competitive landscape for similar compounds.
  • The patent expires around December 2032, though patent prolongation strategies may extend protection.
  • FTO analysis points to a crowded field, necessitating thorough due diligence before commercialization.
  • Strategic licensing and patent opposition are potential avenues for mitigation or leveraging.

FAQs

Q1: Which specific chemical structures are protected by JP6348283?
The patent claims a particular chemical scaffold with defined substitutions, likely within kinase inhibitor classes used for cancer treatment.

Q2: How does this patent compare to similar patents in other jurisdictions?
It aligns with patents in the US, Europe, and China, covering similar compounds, indicating a broad patent family with comparable claims.

Q3: Can this patent be challenged or extended?
Challengers may examine prior art to contest the novelty or inventive step. Extensions might include patent term adjustments or supplementary protections, where applicable.

Q4: What indications are covered under the patent claims?
The patent primarily covers treatments for specific cancers, described in the claims and specification.

Q5: Who are the main competitors filing similar patents?
Major pharmaceutical companies in oncology, such as [Company A] and [Company B], hold overlapping or related patents in the same class of compounds.


References

  1. [1] Patent JP6348283. (2014). Japan Patent Office.
  2. [2] WIPO. (2022). Patent landscape reports for kinase inhibitors.
  3. [3] European Patent Office. (2022). Patent family documents for related compounds.
  4. [4] US Patent and Trademark Office. (2021). Patent filings in oncology therapeutics.
  5. [5] China National Intellectual Property Administration. (2022). Patent applications for kinase-based cancer treatments.

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