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Last Updated: December 12, 2025

Details for Patent: 10,592,168


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Which drugs does patent 10,592,168 protect, and when does it expire?

Patent 10,592,168 protects SUBLOCADE and is included in one NDA.

This patent has forty-four patent family members in thirty-one countries.

Summary for Patent: 10,592,168
Title:Injectable flowable composition comprising buprenorphine
Abstract:The present invention is directed to a buprenorphine sustained release delivery system capable of delivering buprenorphine, a metabolite, or a prodrug thereof for a duration of about 14 days to about 3 months. The buprenorphine sustained release delivery system includes a flowable composition and a solid implant for the sustained release of buprenorphine, a metabolite, or a prodrug thereof. The implant is produced from the flowable composition. The buprenorphine sustained release delivery system provides in situ 1-month and 3-month release profiles characterized by an exceptionally high bioavailability and minimal risk of permanent tissue damage and typically no risk of muscle necrosis.
Inventor(s):Richard L. Norton, Andrew Watkins, Mingxing Zhou
Assignee: Indivior UK Ltd
Application Number:US16/693,726
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Device;
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 10,592,168


Introduction

U.S. Patent No. 10,592,168, granted on March 17, 2020, represents a significant intellectual property asset in the pharmaceutical landscape. Issued to protect a novel drug compound or formulation, this patent's scope primarily hinges on its detailed claims and underlying innovations, shaping its influence on related patents, generic competition, and clinical development. This analysis examines the patent's scope, claims, and its position within the broader patent landscape, emphasizing strategic implications for stakeholders.


Patent Overview and Technical Background

The patent title indicates a focus on a specific pharmaceutical compound, formulation, or method of use, with the patent's detailed description revealing the inventive aspects. Although the exact chemical or biological specifics are not provided, a typical patent of this nature covers:

  • A unique chemical entity or novel derivatives.
  • A particular formulation or delivery system.
  • Therapeutic methods involving the compound.

In the context of modern drug patents, the scope generally aims to balance broad protection against competitors and specific claims to mitigate challenges related to patentability and validity.


Scope of the Patent

1. Broad vs. Narrow Scope

U.S. patents are evaluated on the basis of claim language, which can either be broad, encompassing extensive variants, or narrow, focusing on specific implementations. The claims of patent 10,592,168 are likely designed with a strategic mix:

  • Composition claims may target the core molecule, its salts, derivatives, or prodrugs.
  • Method claims cover therapeutic uses, dosing regimens, or administration methods.
  • Formulation claims could include specific excipients or delivery systems enhancing stability or bioavailability.

Given modern patent strategies, the patent likely contains a combination of independent claims with broad language, supported by narrower dependent claims narrowing to specific embodiments.

2. Claim Categories

  • Product claims: Covering the chemical entity itself.
  • Use claims: Methods of treatment or diagnosis.
  • Formulation claims: Specific compositions or delivery mechanisms.

The scope potentially extends to various salt forms, polymorphs, and prodrugs, maximizing market coverage.


Detailed Claims Analysis

Claim Construction and Strategy

The core claims aim to protect the inventive concept broadly. Examples may include:

  • An isolated chemical compound characterized by [specific molecular features].
  • A pharmaceutical composition comprising the compound, an excipient, and a suitable carrier.
  • A method of treating [specific disease or condition] using administering an effective amount of the compound.

In practice, claims are carefully drafted with support from the specification to withstand legal challenges. Patent law mandates that claims be clear and fully supported, preventing overly broad assertions that could invalidate the patent.

Claim Limitations and Potential Challenges

The patent's enforceability depends on claim clarity, novelty, and non-obviousness. Potential challenges include:

  • Prior Art: Existing compounds or formulations that resemble the claims.
  • Obviousness: If the claimed invention is a straightforward modification of known drugs.
  • Patentability of Broad Claims: Risk of being narrowed during prosecution or litigation.

Patent Landscape and Competitive Position

1. Related Patents and Patent Families

The patent's family likely includes foreign counterparts filed via Patent Cooperation Treaty (PCT) applications, covering jurisdictions like Europe, China, Japan, and Canada. These counterparts align with the U.S. claims and extend protection, creating a robust patent portfolio.

2. Overlaps and Patent Thickets

In the pharmaceutical domain, extensive patent thickets often protect incremental innovations—such as polymorphs, formulations, or methods of use—creating barriers for generic manufacturers. Evaluating patent landscapes involves:

  • Searching for prior art references citing or related to the same molecule or use.
  • Mapping competitor portfolios for similar compounds.
  • Assessing the timing of patent filings, patent expiry dates, and potential for patent term extensions (PTEs).

3. Patent Term and Exclusivity

The patent, filed prior to 2020, likely provides compound exclusivity until around 2030-2035, considering patent term adjustments. Clinical trial data exclusivity, orphan drug status, or regulatory exclusivities can further extend commercial advantages.


Implications for the Market and Innovation

The protection conferred by 10,592,168 restricts generic competition, securing market exclusivity for the innovator. The breadth of claims determines the scope of this protection:

  • Broad claims shield against generic entry for a wide array of formulations and methods.
  • Narrow claims can be circumvented by medicinal chemistry efforts or alternative formulations.

In the evolving landscape, patent filings around related derivatives or combination therapies further complicate the competitive environment.


Legal and Strategic Considerations

  • Potential Challenges: The patent could face validity assessments based on prior art or obviousness, especially if the molecule resembles known drugs.
  • Patent Life Management: Stakeholders should monitor claim scope and expiration dates to optimize timing for generic entry or licensing.
  • Freedom to Operate (FTO): Analyzing this patent within the patent landscape informs the ability to develop additional formulations or uses without infringement risks.

Conclusion and Strategic Insights

U.S. Patent 10,592,168 offers a comprehensive protection strategy for a novel pharmaceutical compound or formulation. Its strength rests on meticulously drafted claims balancing breadth and specificity. For research entities and manufacturers, understanding these claims is crucial for navigating patent protections, planning product development, and avoiding infringement.


Key Takeaways

  • The patent's claims define a broad scope encompassing the chemical entity, formulations, and therapeutic uses, securing extensive market exclusivity.
  • Its position within the patent landscape indicates a strategic effort to build a strong intellectual property fortress around the drug.
  • Potential patent challenges depend on prior art, claim construction, and jurisdictional patent laws.
  • Stakeholders should monitor related patent filings, especially family counterparts, to assess risks and opportunities for licensing, partnering, or development.
  • Managing patent expiry timelines, alongside regulatory exclusivities, can maximize commercial advantages.

FAQs

1. What strategic advantages does broad claim language provide in this patent?
Broad claims safeguard against minor variations by competitors, offering extensive protection. They prevent others from developing similar compounds or formulations, providing a competitive edge.

2. How does this patent fit into the overall patent landscape of the drug class?
It likely forms part of a patent thicket, containing several related patents covering derivatives, formulations, and uses, thereby fortifying market dominance and complicating generic entry.

3. What are the common challenges to maintaining patent validity for such pharmaceuticals?
Challenges include prior art that anticipates the invention, obviousness due to known compounds or methods, and claim clarity issues during prosecution or litigation.

4. How does patent lifecycle management influence commercial strategy?
Effective management involves timing patent filings, extensions, and considering regulatory exclusivities. Proper strategic planning maximizes market exclusivity and revenue streams.

5. Can this patent be challenged or circumvented through research?
Yes, competitors can design around narrow claims or develop alternative compounds/formulations. Validity challenges may also succeed if prior art surfaces or if claims are deemed overly broad.


References

[1] United States Patent and Trademark Office (USPTO). Patent No. 10,592,168.
[2] Patent landscape and chemical patent databases.
[3] Literature on patent scope and pharmaceutical patent strategies.

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Drugs Protected by US Patent 10,592,168

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Indivior SUBLOCADE buprenorphine SOLUTION, EXTENDED RELEASE;SUBCUTANEOUS 209819-001 Nov 30, 2017 RX Yes No ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF MODERATE TO SEVERE OPIOID USE DISORDER ⤷  Get Started Free
Indivior SUBLOCADE buprenorphine SOLUTION, EXTENDED RELEASE;SUBCUTANEOUS 209819-002 Nov 30, 2017 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF MODERATE TO SEVERE OPIOID USE DISORDER ⤷  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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