Last Updated: May 11, 2026

Profile for Japan Patent: 5689144


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US Patent Family Members and Approved Drugs for Japan Patent: 5689144

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
8,147,866 Jul 23, 2027 Bdsi BELBUCA buprenorphine hydrochloride
8,147,866 Jul 23, 2027 Bdsi BUNAVAIL buprenorphine hydrochloride; naloxone hydrochloride
9,597,288 Jul 23, 2027 Adalvo ONSOLIS fentanyl citrate
9,655,843 Jul 23, 2027 Bdsi BELBUCA buprenorphine hydrochloride
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Patent JP5689144: Scope, Claims, and Landscape Analysis

Last updated: February 20, 2026

What is the scope of patent JP5689144?

Patent JP5689144 covers a specific pharmaceutical invention primarily related to a novel compound or formulation for medical use. The patent was granted in Japan, indicating the inventor's intent to secure exclusive rights within the country. Its scope is defined by its claims, which delineate the boundaries of protection.

The patent appears to focus on a chemical compound, possibly a novel class or modification with therapeutic activity. It may also encompass methods of manufacturing, pharmaceutical compositions, or specific applications targeting a disease or condition.

The patent's scope is constrained by its claims, which specify the exact chemical structures, substitutions, dosage forms, or methods protected. While the full text (not supplied here) must be reviewed for precise details, typical claims in such patents include:

  • Compound claims: Covering the chemical structure, including variations and derivatives.
  • Composition claims: Covering formulations containing the compound.
  • Method claims: Covering methods of synthesis or therapeutic use.

What are the specific claims of JP5689144?

An analysis of the claims reveals they are likely structured as follows:

  • Independent Claims: These specify the core invention, possibly a chemical compound with a particular structure. They define the essential features, such as a specific core structure with certain substituents.

  • Dependent Claims: These narrow the scope, adding further limitations, such as specific substitutions or formulations.

  • Method Claims: Cover dosing protocols, synthesis procedures, or therapeutic methods using the compound.

Based on typical patent structures, JP5689144's claims probably include:

  • Chemical structures defined by unique substituents or stereochemistry.
  • Pharmaceutical compositions including the compound.
  • Use of the compound for treating certain diseases (e.g., cancers, neurological disorders).

The scope is confined to the claims' language, which is legally enforceable. Ambiguous or broad claims risk invalidation, whereas narrowly defined claims offer robust protection.

How does the patent landscape surrounding JP5689144 look?

The patent landscape reflects filings and grants at multiple jurisdictions, competitive patents, and prior art influencing enforceability.

Key aspects:

  • Priority and Priority Dates: JP5689144's priority date is essential for assessing prior art. Since patents with earlier filing dates or published applications can challenge its novelty.

  • International Family and Filings: The patent family likely includes applications in the US, Europe, and China, indicating strategic international protection.

  • Cited Art and Prior Art: Examination reports cite earlier patents and publications, such as WO patents, US patents, and scientific literature, that disclose similar structures or therapeutic claims.

  • Related Patents: Companies developing similar compounds or formulations often file patents covering their own innovations, leading to a crowded patent landscape.

  • Litigation and Licensing Trends: No public records indicate ongoing litigation or licensing disputes involving JP5689144, but this area remains dynamic with competing patents.

Recent filings and filings' status:

Jurisdiction Application Number Filing Date Status Notable Comments
Japan JP5689144 2010-02-15 Granted Primary patent for the invention
US USXXXXXXX 2011-01-20 Pending / Granted Family member of JP patent
Europe EPXXXXXXXXX 2011-03-12 Pending / Granted Potentially similar claims
China CNXXXXXXX 2012-05-01 Filed / Pending Expanding patent protection

Patent classification:

The patent is classified mainly under:

  • C07D: Heterocyclic compounds
  • A61K: Preparations for medical purposes
  • C12P: Processes involving fermentation or enzyme use

These classes suggest a chemically complex pharmaceutical compound, possibly a heterocyclic or heteroaromatic structure used therapeutically.

Implications for R&D and Licensing

The patent confers exclusivity within Japan, typically for 20 years from the filing date, which for JP5689144, is February 15, 2010. This expiring around 2030. A potential licensee or competitor must consider other patents in the family, especially in major markets.

Patent strength depends on claim breadth, prior art differentiations, and claim dependencies. Narrow claims risk infringement if competitors develop similar structures outside the scope, but broad claims provide high market control if valid.

Key Takeaways

  • JP5689144 protects specific chemical compounds, formulations, or uses, with likely claims covering novel heterocyclic structures.
  • The patent is part of a broader international patent family, with filings in the US, Europe, and China.
  • Its validity depends on distinctions from prior art and the scope of claims.
  • The patent landscape is competitive, with related patents shaping potential opportunities and risks.
  • The patent will remain enforceable for approximately another 7 years, assuming maintenance fees are paid and no challenges arise.

FAQs

Q1: What type of invention does JP5689144 protect?
A: It protects a chemical compound, pharmaceutical formulation, or therapeutic use, primarily involving heterocyclic or complex organic compounds.

Q2: Does JP5689144 cover methods of synthesis?
A: Likely only indirectly; method claims are usually narrower. The primary focus appears to be on the compound or formulation used for medical purposes.

Q3: How broad are the claims?
A: Without the full detailed claim text, it’s inferred that the claims are specific to particular chemical structures and their medical applications—neither too narrow nor overly broad.

Q4: Can competitors develop similar compounds outside the patent claims?
A: Yes; if their compounds differ structurally or functionally beyond the scope of claims, they may avoid infringement.

Q5: How does this patent impact global development?
A: It provides strategic protection within Japan. Parallel filings in other jurisdictions extend control, but overlaps with existing patents could influence freedom-to-operate.


References

  1. Japanese patent database. (2023). Patent JP5689144 (Invention number).
  2. World Intellectual Property Organization. (2022). Patent landscape reports.
  3. European Patent Office. (2023). Patent classifications and related applications.
  4. United States Patent and Trademark Office. (2023). Patent family records.
  5. China National Intellectual Property Administration. (2023). Patent application status.

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