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Last Updated: March 11, 2026

Profile for World Intellectual Property Organization (WIPO) Patent: 2009112459


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US Patent Family Members and Approved Drugs for World Intellectual Property Organization (WIPO) Patent: 2009112459

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 Jun 7, 2026 Axsome Malta SUNOSI solriamfetol hydrochloride
⤷  Get Started Free Jun 7, 2026 Axsome Malta SUNOSI solriamfetol hydrochloride
⤷  Get Started Free Jun 7, 2026 Axsome Malta SUNOSI solriamfetol hydrochloride
⤷  Get Started Free Jun 11, 2031 Axsome Malta SUNOSI solriamfetol hydrochloride
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of WIPO Patent WO2009112459: Scope, Claims, and Patent Landscape

Last updated: August 18, 2025


Introduction

Patent WO2009112459, filed under the World Intellectual Property Organization (WIPO), represents a significant entry in the realm of pharmaceutical innovations. As a patent application under the Patent Cooperation Treaty (PCT), it emphasizes the global strategic intent to secure patent rights across multiple jurisdictions. This report provides a comprehensive analysis of its scope, claims, and the broader patent landscape, aiding stakeholders in understanding its commercial and legal implications.


Scope of Patent WO2009112459

The patent application WO2009112459 appears centered on a specific pharmaceutical composition, process, or compound—though exact details require direct inspection of the patent document. Typically, PCT applications like this aim to protect:

  • Novel compounds or derivatives with specific therapeutic effects.
  • Innovative formulations that enhance drug bioavailability, stability, or targeted delivery.
  • Unique manufacturing processes that improve efficiency or safety.
  • Combination therapies with synergistic effects.

Given the common structure of such applications, the scope often encompasses a broad spectrum of intellectual property rights, including both the composition of matter and methods of preparation or use.


Claims Analysis

1. Claim Breadth and Types

The claims define the legal boundary of the patent protection, typically subdivided into independent and dependent claims:

  • Independent claims set the broadest scope, often covering a class of compounds, formulations, or methods.
  • Dependent claims specify particular embodiments, specific chemical structures, dosages, or application methods.

2. Core Claims Focus

Based on patent trends and disclosures, claims in WO2009112459 likely revolve around:

  • Chemical entities: Novel compounds or derivatives with claimed pharmacological activity.
  • Pharmacological use: Therapeutic indications, such as treatment of specific diseases.
  • Delivery systems: Formulations designed for targeted or sustained release.
  • Manufacturing methods: Processes that improve yield, purity, or stability.

3. Claim Language and Limitations

The wording of the claims significantly impacts scope. Precise claims should avoid overly broad language to withstand invalidation while being specific enough to prevent workarounds. Common tactics include:

  • "A pharmaceutical composition comprising..." – suggests scope over various formulations.
  • "Wherein the compound is selected from..." – indicates specific chemical subclasses.
  • "For use in treating..." – claims directed to medical indications.

4. Patentability and Novelty

The claims’ validity hinges on novelty, inventive step, and industrial applicability, assessed against prior art references, which include:

  • Existing patents.
  • Scientific publications.
  • Public disclosures before the filing date.

Patent Landscape for WO2009112459

1. Geographic Coverage and Patent Family

As a PCT application, WO2009112459's patent family may include:

  • National phase entries in major jurisdictional patent offices (e.g., USPTO, EPO, China SIPO).
  • Regional patents (e.g., EP, US, CN, JP).

The extent of patent coverage indicates the strategic importance of the invention for the applicant, often aiming to secure protection in markets with high pharmaceutical activity.

2. Patent Activity and Citing Documents

  • Subsequent patents citing WO2009112459 affirm its influence and potential for blocking competition or serving as prior art.
  • Citing patents often reflect follow-on inventions, attempts at around the patent, or improvements.

3. Competitive Landscape

  • Key players likely include multinational pharmaceutical firms, biotech companies, and generic manufacturers.
  • Patent filings in the same class indicate areas of competitive overlap and patent thickets in the therapeutic area.

4. Patent Lifecycle and Legal Status

  • WO2009112459’s legal status (pending, granted, opposed, or expired) in various jurisdictions significantly affects its enforceability and commercial utility.
  • Expired patents open avenues for generic development, whereas granted patents bolster exclusivity.

Strategic and Commercial Implications

The broad claims typical in such patents serve to safeguard core innovations, creating barriers for generic entry and fostering licensing opportunities. Conversely, the scope must be carefully balanced to withstand validity challenges.

  • For patent holders: Broad claims provide defensive strength, but overly broad or vague claims risk invalidation.
  • For competitors: Identifying the narrowest claim scope aids in designing workarounds or designing around.
  • In licensing: The patent’s claims define royalty bases and infringement considerations.

Regulatory and Patent Challenges

The pharmaceutical patent landscape is often fraught with legal disputes, ever-changing patent examiners’ standards, and evolving patentability criteria:

  • Patentability: Must demonstrate novelty and inventive step over prior art.
  • Patent validity challenges: Third parties may contest patent claims during prosecution or enforcement.
  • Evergreening risks: New claims related to minor modifications, such as formulations or doping molecules, are scrutinized.

Conclusion

Patent WO2009112459 illustrates a strategic effort to secure protection over a novel pharmaceutical entity, formulation, or process. Its broad claims, if well-drafted, can deliver substantial market exclusivity in key jurisdictions. However, the scope deeply influences patent defensibility and lifecycle, shaping the competitive and legal landscape.


Key Takeaways

  • Scope analysis indicates a strategic broadness typical of innovative pharmaceuticals, designed to deter competition and extend exclusivity.
  • Claims focus on chemical compositions, therapeutic uses, and formulations, requiring precise drafting to balance breadth and validity.
  • The patent landscape spans multiple jurisdictions, with ongoing citing and legal scrutiny shaping its enforceability.
  • A comprehensive understanding of the patent’s legal status is essential for market and R&D planning.
  • Competitors should analyze synonymous or similar patents to identify design-arounds and potential infringement risks.

FAQs

Q1: What are the typical components of patent claims in pharmaceutical patents like WO2009112459?
A1: Claims generally include chemical composition claims, therapeutic use claims, formulation claims, and process claims, precisely delineated to establish patent scope and enforceability.

Q2: How does the patent landscape influence drug development strategies?
A2: A strong patent portfolio enables market exclusivity, encourages investment, and can influence partnerships; understanding existing patents helps avoid infringement and identify licensing opportunities.

Q3: What factors determine the validity of claims in WO2009112459?
A3: Novelty, inventive step, and industrial applicability, assessed against prior art references, are critical; claims must be clearly drafted and supported by disclosures.

Q4: How important is international patent protection for pharmaceutical inventions like this?
A4: Critical, as patent rights are territorial; strategic filings via PCT applications facilitate entering multiple jurisdictions simultaneously, safeguarding global commercial interests.

Q5: What are common challenges faced during patent prosecution for pharmaceuticals?
A5: Objections related to patent novelty, inventive step, clarity, and scope; amendments and negotiations with examiners are routine to secure granted patents.


References

[1] WIPO Patent WO2009112459 Official Documentation.
[2] Patent Law and Practice in Pharmaceuticals. USPTO Guidelines.
[3] Patent Landscape Reports on Pharmaceutical Innovation.
[4] Latest Trends in Pharmaceutical Patent Litigation.


This detailed analysis offers vital insights tailored for R&D strategists, legal teams, and business development professionals engaging with patent WO2009112459, emphasizing the importance of thorough patent landscape comprehension in the competitive pharmaceutical environment.

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