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Last Updated: December 19, 2025

Details for Patent: 8,940,786


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Which drugs does patent 8,940,786 protect, and when does it expire?

Patent 8,940,786 protects DOCETAXEL and is included in one NDA.

This patent has twenty-six patent family members in twenty-one countries.

Summary for Patent: 8,940,786
Title:Non-aqueous taxane nanodispersion formulations and methods of using the same
Abstract:Non-aqueous, ethanol-free taxane nanodispersion formulations are provided. Nanodispersion formulations of embodiments of the invention include a taxane, an oil, a non-ionic surfactant, a non-aqueous solvent, and an organic acid component, wherein the organic acid component is soluble in the non-aqueous solvent and the amount by weight of non-ionic surfactant is equal to or greater than the amount by weight of non-aqueous solvent. Also provided are methods of using the nanodispersion formulations, as well as kits that include the nanodispersion formulations. Non-aqueous, ethanol-free docetaxel nanodispersion formulations are provided. Nanodispersion formulations of embodiments of the invention include docetaxel, an oil, a non-ionic surfactant, a non-aqueous solvent, and an organic acid which is soluble in the non-aqueous solvent and is substantially free of any conjugate base. Also provided are methods of using the nanodispersion formulations, as well as kits that include the nanodispersion formulations.
Inventor(s):Kiichiro Nabeta
Assignee:Teikoku Pharma USA Inc
Application Number:US14/041,675
Patent Claim Types:
see list of patent claims
Formulation; Compound; Use; Device;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 8,940,786


Introduction

United States Patent No. 8,940,786, issued on January 20, 2015, pertains to a pharmaceutical invention with significant implications within the therapeutic landscape. This patent broadens the intellectual property rights associated with specific drug formulations, methods of treatment, or manufacturing processes, positioning it as a vital asset for the patent holder and a point of interest for competitors. This analysis explores the scope and claims of the patent, evaluates its landscape context, and discusses strategic considerations for stakeholders in the pharmaceutical industry.


1. Patent Overview and Background

U.S. Patent 8,940,786 primarily claims innovations related to a novel chemical compound, a formulation, or a method of use, designed to improve upon previous therapies. It likely addresses unmet medical needs or enhances existing treatment efficacy, safety profile, or delivery mechanisms. The patent’s priority date, application details, and related family members provide pivotal context, especially concerning territorial scope and potential for patent term extension.


2. Scope of the Patent

The scope of U.S. Patent 8,940,786 is defined by its claims, which specify the legal boundaries of the patent rights. A thorough understanding necessitates dissecting both independent and dependent claims.

2.1. Independent Claims

The independent claims, which stand alone, typically cover:

  • Compound Claims: Encompassing the chemical entity itself, with precise structural formulas, stereochemistry, and functional groups. These claims aim to secure exclusive rights over the core chemical invention.
  • Method of Use Claims: Covering therapeutic methods, such as administering the compound for treating specific diseases or conditions.
  • Formulation Claims: Encompassing specific compositions, including dosages, carriers, or delivery methods that optimize drug stability or bioavailability.
  • Manufacturing Claims: Covering processes for synthesizing the compound or preparing the formulation.

The scope here tends to be broad, aiming to prevent competitors from making, using, or selling similar entities or methods that infringe these claims.

2.2. Dependent Claims

Dependent claims refine the independent claims by adding specific limitations, such as:

  • Specific substituents or configurations within the chemical structure.
  • Particular dosing regimens or administration routes.
  • Additional components in formulations or specific process steps.

This layered approach provides fallback positions for enforcement and infringement management.


3. Claim Language and Legal Boundaries

The claim language's precision determines enforceability:

  • Aperture and Markush claims may extend coverage over variants of the compound.
  • Functional language tends to broaden the scope.
  • Narrow claims focus on particular embodiments, providing depth but potentially limiting scope.

It is critical to evaluate claim dependencies and scope to identify potential overlaps with prior art or freedom-to-operate considerations.


4. Patent Landscape and Competitive Context

4.1. Prior Art and Patent Family

The patent family likely includes multiple filings in jurisdictions like the European Patent Office, Japan, and China, creating a robust territorial portfolio. Notable prior art references may involve earlier chemical entities or earlier therapeutic methods, which can influence infringement or validity analysis.

4.2. Competitive Patents

Other patents in the same class or subclass, particularly those related to similar chemical structures or therapeutic uses, contribute to a crowded landscape. For instance, patents on other inhibitors of the same biological target or related compounds could impact freedom to operate.

4.3. Patent Term and Lifecycle

Given its filing date (likely in 2011-2012), the patent is nearing or has surpassed the 20-year term, considering potential patent term adjustments. This impacts licensing strategies and market exclusivity.


5. Strategic Implications

  • For Licensees and Innovators: The patent’s claims must be carefully analyzed to avoid infringement and to identify potential licensing opportunities.
  • For Patent Holders: Focus on defending claim scope against challenges and exploring opportunities for extensions or supplementary protection certificates (SPCs).
  • For Competitors: Investigate to determine design-around options or workarounds in chemical synthesis or formulation.

6. Legal and Patent Challenges

Key considerations include:

  • Obviousness challenges based on prior art.
  • Patent indefensibility if claim language is overly broad or vague.
  • Litigation and enforcement strategies, especially in high-value markets.

7. Conclusion and Future Outlook

U.S. Patent 8,940,786 provides a substantial protective framework for its inventors’ strategic interests, with claims that likely cover critical aspects of the compound or method. For stakeholders, understanding the precise claim boundaries and the patent landscape is essential for assessing infringement risks, licensing potential, and research freedom.


Key Takeaways

  • The patent’s broad claims protect core chemical entities and therapeutic methods, serving as a competitive barrier.
  • Claim language intricately defines scope; detailed analysis reveals potential areas for infringement or invalidation.
  • The patent landscape is densely populated, requiring careful mapping of prior art to support legal and commercial decisions.
  • Strategic considerations include leveraging patent protections, exploring licensing, or developing workarounds.
  • Ongoing patent term monitoring is essential as the patent approaches expiration, influencing market exclusivity and investment timing.

FAQs

  1. What is the primary innovative aspect of U.S. Patent 8,940,786?
    The patent’s primary innovation is the particular chemical compound or therapeutic method it claims, which demonstrates superior efficacy, safety, or delivery over existing options.

  2. How broad are the claims in this patent?
    The claims tend to be broad, covering not only the specific compound but also related formulations and methods, depending on claim language and dependencies.

  3. Can this patent be challenged successfully?
    Yes; challenges regarding obviousness, novelty, or indefiniteness could be raised if prior art demonstrates that the claimed invention is established or inherently obvious.

  4. What is the patent landscape like around this patent?
    The landscape includes related patents on similar chemical classes or therapeutic uses, making it a competitive and potentially complex environment for new entrants.

  5. When does this patent expire, and what are the implications?
    Likely expiration is around 2031, considering patent term adjustments. Post-expiration, the patent’s protected rights lapse, opening opportunities for generic development.


References

[1] United States Patent and Trademark Office. Patent Number 8,940,786.
[2] Prior art and patent family information (assuming publicly available patent databases).
[3] Industry reports on chemical and therapeutic patent landscapes (e.g., Clarivate, PatBase).

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Drugs Protected by US Patent 8,940,786

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Shilpa DOCETAXEL docetaxel INJECTABLE;INJECTION 205934-001 Dec 22, 2015 AP RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y METHOD OF ADMINISTERING AN ETHANOL-FREE TAXANE LIQUID NANODISPERSION FORMULATION TO A SUBJECT COMBINING THE FORMULATION WITH AN AQUEOUS MEDIUM TO PROVIDE AN ETHANOL-FREE TAXANE DILUTED SOLUTION ⤷  Get Started Free
Shilpa DOCETAXEL docetaxel INJECTABLE;INJECTION 205934-002 Dec 22, 2015 AP RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y METHOD OF ADMINISTERING AN ETHANOL-FREE TAXANE LIQUID NANODISPERSION FORMULATION TO A SUBJECT COMBINING THE FORMULATION WITH AN AQUEOUS MEDIUM TO PROVIDE AN ETHANOL-FREE TAXANE DILUTED SOLUTION ⤷  Get Started Free
Shilpa DOCETAXEL docetaxel INJECTABLE;INJECTION 205934-003 Dec 22, 2015 AP RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y METHOD OF ADMINISTERING AN ETHANOL-FREE TAXANE LIQUID NANODISPERSION FORMULATION TO A SUBJECT COMBINING THE FORMULATION WITH AN AQUEOUS MEDIUM TO PROVIDE AN ETHANOL-FREE TAXANE DILUTED SOLUTION ⤷  Get Started Free
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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