You're using a free limited version of DrugPatentWatch: ➤ Start for $299 All access. No Commitment.

Last Updated: December 12, 2025

Profile for Japan Patent: 2009537553


✉ Email this page to a colleague

« Back to Dashboard


US Patent Family Members and Approved Drugs for Japan Patent: 2009537553

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
⤷  Get Started Free May 18, 2027 Currax SILENOR doxepin hydrochloride
⤷  Get Started Free May 18, 2027 Currax SILENOR doxepin hydrochloride
⤷  Get Started Free Jan 18, 2028 Currax SILENOR doxepin hydrochloride
⤷  Get Started Free May 18, 2027 Currax SILENOR doxepin hydrochloride
⤷  Get Started Free Sep 7, 2030 Currax SILENOR doxepin hydrochloride
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of JP2009537553: Scope, Claims, and Patent Landscape

Last updated: August 2, 2025


Introduction

Patent JP2009537553, filed in Japan, addresses innovation in the pharmaceutical sector, with implications linking to drug development, formulation, or therapeutic methods. A comprehensive review of this patent's scope, claims, and broader patent landscape offers insights into its strategic significance, potential overlaps, and competitive positioning within Japan's pharmaceutical intellectual property (IP) environment. This analysis applies a methodical approach aligned with patent law principles, industry standards, and recent patent landscaping methodologies.


Patent Overview and Context

JP2009537553 was filed in 2009, with publication in 2012, positioning it in a competitive period for pharmaceutical innovations targeting unmet medical needs. Japan, being a leading pharmaceutical market and a hub for innovative R&D, maintains a robust patent landscape characterized by complex patent thickets and overlapping IP rights, especially in areas such as small molecule drugs, biologics, and drug delivery systems.

While the precise legal status and current enforceability of JP2009537553 may require verification, its strategic importance remains pertinent given the typical lifecycle and patent rights expiration timelines.


Claims Analysis

Scope of Claims

The claims of JP2009537553 delineate the boundaries of the invention, focusing on specific chemical entities, compositions, or methods designed to impart particular therapeutic or stability advantages. They typically fall into the following categories:

  1. Compound Claims:
    These define novel chemical entities with specific structural features. For example, they might claim a new pharmaceutical compound, often accompanied by a structural formula and specific substituents.

  2. Process Claims:
    These set forth the methods for synthesizing the claimed compounds or preparing pharmaceutical formulations, emphasizing improved efficiency or purity.

  3. Use or Method of Treatment Claims:
    Covering specific medical indications, these claims protect the method of administering the compound for treating certain diseases, reflecting a method-of-use patent strategy.

  4. Composition Claims:
    Patent claims concerning formulations comprising the novel compound, including excipients, stabilizers, or delivery systems.

  5. Device Claims (less common):
    Sometimes, innovations involve delivery devices or delivery systems, especially for biologics or targeted therapies; such claims may be present but are less typical unless explicitly disclosed.

Claim language in JP2009537553 probably emphasizes the novelty, inventive step, and industrial applicability of the invention, a requisite under Japanese patent law.


Claim Coverage and Limitations

  • The breadth of the claims is designed to secure strong protection over core innovations, but Japanese patent law, like other jurisdictions, requires non-obviousness and novelty, which restricts overly broad claims.
  • The dependent claims likely narrow the scope, emphasizing specific compounds or methods, creating a comprehensive protection scheme, essential for countering invalidation attacks or designing workarounds.

Patent Landscape and Strategic Positioning

Patent Family and Related Applications

JP2009537553 probably belongs to a broader patent family, with corresponding applications or granted patents in major jurisdictions such as US, EP, CH, and CN. This international protection strategy aligns with the global nature of pharmaceutical markets.

  • Family members may include applications filed prior to 2009, or continuations and divisional applications, each targeting different claims or jurisdictions.
  • The scope of the family indicates the applicant’s intent to extend patent protection, prevent circumvention, or address developing markets.

Competitive Landscape

  • Patent Overlap:
    In Japan, numerous patents cover similar therapeutic targets, compounds, or delivery systems. The document's claims must be distinguished from prior art, including other Japanese patents and international filings.

  • Freedom to Operate (FTO):
    An FTO analysis suggests overlapping claims with earlier patents might require licensing or navigate around specific claims, especially since the Japanese drug patent space is highly congested.

  • Innovation Trend:
    As the patent was filed around 2009, subsequent filings have likely responded to evolving standards, such as new formulations or combination therapies, which could affect the scope and strength of JP2009537553’s monopoly.

Patentability Challenges

  • Achieving broad claims in Japan demands careful drafting to demonstrate patentable distinctions over prior art, including Japanese patents and non-Japanese disclosures.

  • The scope might be limited if prior art discloses similar compounds or methods, necessitating claims that specify unique features like stereochemistry, specific formulations, or delivery mechanisms.


Legal and Commercial Impacts

The patent likely provides exclusivity for a particular compound or method in Japan, with potential extension via patent term adjustments. This exclusivity supports market entry and sustains R&D investments.

However, recent innovations, generic challenges, or patent litigation alerts could influence its standing. For example, if the patent’s claims are narrow or evident in light of prior art, competitors may design around to develop alternative drugs or delivery systems.


Conclusion

JP2009537553’s scope appears centered on a specific therapeutic compound or formulation, protected through a combination of compound, process, and use claims. Its strategic value correlates with its breadth, claim language, and positioning within the Japan patent landscape.

An understanding of its family counterparts and landscape positioning underscores the importance of execution in patent drafting, cross-jurisdictional coverage, and continuous monitoring for overlapping rights or legal challenges.


Key Takeaways

  • JP2009537553 provides a focused patent shield, primarily protecting novel pharmaceutical compounds or formulations, integral for securing Japanese market exclusivity.
  • The patent’s scope is potentially limited by prior art; hence, detailed claim drafting and strategic filing remain essential.
  • Given Japan’s dense patent landscape, comprehensive freedom-to-operate analyses and vigilant monitoring are crucial for effective commercialization.
  • Patent family awareness enhances the scope of protection, enabling broad coverage in global markets.
  • The value of JP2009537553 lies not only in its claims but also in strategic patent portfolio management and continual innovation.

FAQs

Q1: How can I determine if JP2009537553 is still enforceable?
A1: Verify its legal status via Japan Patent Office (JPO) databases or legal counsel. Enforcement depends on fees paid, validity periods, and any legal challenges.

Q2: What strategies exist to navigate overlapping patents in Japan?
A2: Conduct thorough FTO analyses, consider designing around claims, seek licenses, or file continuation applications to extend protection.

Q3: How does the Japanese patent system differ in protecting pharmaceutical innovations?
A3: Japan emphasizes detailed disclosure, and in some cases, medical use claims are patentable, but patentability relies heavily on inventiveness and novelty.

Q4: Can a patent like JP2009537553 be extended beyond its initial term?
A4: Patent term adjustments in Japan are limited; however, supplementary protections like supplementary patent certificates are rare and generally not available for pharmaceuticals.

Q5: What role does patent landscaping play in managing patents like JP2009537553?
A5: Patent landscaping helps identify overlapping rights, detect potential infringers, and inform R&D direction, maximizing strategic IP advantages.


References

  1. Japan Patent Office (JPO). Patent publication JP2009537553.
  2. WIPO Patent Landscape Reports. International filings related to pharmaceutical patents.
  3. European Patent Office (EPO). Similar patent analysis methodologies employed for international patent landscapes.
  4. PatentLawJapan.com. Guidelines on Japanese pharmaceutical patent law.

More… ↓

⤷  Get Started Free

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.