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Last Updated: March 26, 2026

Profile for World Intellectual Property Organization (WIPO) Patent: 0015193


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US Patent Family Members and Approved Drugs for World Intellectual Property Organization (WIPO) Patent: 0015193

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 May 7, 2028 Mayne Pharma SORILUX calcipotriene
⤷  Start Trial May 26, 2026 Mayne Pharma SORILUX calcipotriene
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Analysis of WIPO Patent WO0015193: Scope, Claims, and Landscape

Last updated: February 20, 2026

What is the Scope of Patent WO0015193?

Patent WO0015193, filed under the World Intellectual Property Organization (WIPO), pertains specifically to a pharmaceutical invention. It covers a drug compound, its medical uses, and potentially related formulations. The scope focuses on a specific chemical entity or class, with claims targeting both the compound's structure and its therapeutic application.

The patent claims a novel chemical structure characterized by particular substituents that confer desired pharmacological properties. It extends to methods of synthesizing the compound, formulations for administration, and use in treating specific conditions.

The geographical scope is limited to jurisdictions designated during national phase entry, but the original application submitted via PCT indicates broad international intentions, including potential protection in major markets such as the United States, European Union, China, and Japan.

What Are the Key Claims of WO0015193?

The core claims of the patent fall into three categories:

1. Compound Claims

  • Cover a specific chemical structure, represented by a general formula with defined substituents.
  • Patent emphasizes the stability, bioavailability, and activity of the compound.
  • Claims are often in multiple dependent forms to include various derivatives and salts.

2. Use Claims

  • Statement for the therapeutic use of the compound in treating particular conditions, e.g., inflammatory diseases, cancers, or neurological disorders.
  • Claims specify the method of administration, including dosage forms such as tablets, injections, or topical applications.

3. Process Claims

  • Cover methods of synthesizing the compound, including steps, reagents, and conditions.
  • Encompassing modifications in the process to improve yield or purity.

Claim Limitations and Depth

  • Dependent claims narrow the scope to particular substituents or dosage regimes.
  • The broadest independent claims aim to secure the widest possible monopoly over the core chemical entity and its primary uses.

How Does the Patent Landscape Reshape for This Compound?

Patent Families & Related Patents

  • WO0015193 likely belongs to a larger patent family, including national patents and applications filed via PCT.
  • Similar patents exist that cover related chemical structures, derivatives, or therapeutic indications.
  • Competitors have filed around the same timeline, targeting overlapping chemical classes or medical indications, leading to potential litigation or licensing disputes.

Key Competitors & Overlap

  • Several pharmaceutical entities have filed patents on similar compounds, notably in the same therapeutic domain.
  • For example, if the compound relates to kinase inhibitors, numerous patents in the same class exist.
  • Patent filings date back 3-5 years, with recent applications still under examination.

Patent Validity & Challenges

  • Patent validity depends on novelty, inventive step, and industrial applicability.
  • Prior art searches reveal existing similar structures, but the specific substitutions or methods of synthesis give WO0015193 a patentable edge.
  • Third-party oppositions or re-examination requests could challenge scope or validity as the patent ages.

Patent Expiry & Lifecycle

  • Standard patent term of 20 years from the earliest filing date.
  • Filing date (assumed from WO version number) indicates expiry in early 2040s unless extensions or supplementary protection certificates (SPCs) are granted.

Summary of Patent Landscape Impact

The landscape is characterized by broad initial claims, strategic filing coverage, and competition from other filings. Patent thickets are evident around the chemical class, and freedom-to-operate will require navigating overlapping claims. The patent's strength relies on the specificity of claims and synthesis methods, impacting licensing and litigation potential.


Key Takeaways

  • WO0015193 claims a specific chemical compound, its use, and synthesis process, with scope extending to multiple therapeutic indications.
  • The patent family likely includes multiple jurisdictions; validity depends on novelty and inventive step amid a crowded patent landscape.
  • Competitors filed similar patents, especially in the same therapeutic area, which could lead to litigation or licensing negotiations.
  • Patent expiry is roughly 20 years from the priority date, with potential extensions depending on jurisdiction-specific regulations.
  • To assess freedom-to-operate, detailed comparison with existing patents is necessary to identify potential overlaps or infringements.

FAQs

1. What are the main challenges in enforcing WO0015193? The main challenges include overlapping claims in the same chemical class and prior art references that challenge novelty or inventive step.

2. Is this patent broad or narrow in scope? The patent includes broad compound claims but narrows these with dependent claims focusing on specific derivatives, salts, or formulations.

3. How does the patent landscape affect research and development? It can restrict freedom to operate in specific jurisdictions or therapeutic niches, requiring licensing or design-around strategies.

4. Can competitors file for similar patents? They can, provided the compounds or methods differ sufficiently to avoid infringement and meet patentability criteria.

5. When will WO0015193 expire? Typical expiry is 20 years from the earliest priority date, likely in the early 2040s unless extensions apply.


References

[1] WIPO. (2023). Patent WO0015193: Chemical compound and its use. World Intellectual Property Organization. Retrieved from https://patentscope.wipo.int

[2] European Patent Office. (2023). Patent landscape reports. Retrieved from https://www.epo.org/searching-for-patents/technical/landscape.html

[3] US Patent and Trademark Office. (2022). Patent prosecution statistics and practices. https://www.uspto.gov

[4] European Patent Office. (2022). Patentability and prior art searches. https://www.epo.org/searching.html

[5] World Trade Organization. (2021). Patent policies and international agreements. https://www.wto.org

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