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Last Updated: December 19, 2025

Details for Patent: 9,265,760


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Which drugs does patent 9,265,760 protect, and when does it expire?

Patent 9,265,760 protects ZOHYDRO ER and is included in one NDA.

This patent has six patent family members in four countries.

Summary for Patent: 9,265,760
Title:Treating pain in patients with hepatic impairment
Abstract:An extended release composition for an analgesic active pharmaceutical ingredient which may be an opioid, preferably hydrocodone as the only active ingredient. The extended release composition preferably comprises a extended release composition which may be in the form of beads contained in an oral dosage form such as gelatin capsules. The composition is designed to release hydrocodone in a way such that the increase in hydrocodone exposure in hepatically impaired patients is not clinically significant. The oral dosage units are supplied as part of a kit, which also includes a primary package and a package insert all sold as a commercially marketed product. The primary package and package insert are contained in an optional secondary package and the package insert does not contain a warning, a dosing instruction, or a dosing table specifically directed to patients suffering from mild, moderate or severe hepatic impairment, and preferably explicitly states that dosing adjustment is not required for mild or moderate hepatic impairment.
Inventor(s):Andrew Hartman, Christopher M. Rubino, Cynthia Y. Robinson
Assignee:Pemix Ireland Pain Ltd, Persion Pharmaceuticals LLC
Application Number:US14/815,219
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,265,760
Patent Claim Types:
see list of patent claims
Use; Formulation; Dosage form; Device;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,265,760


Introduction

United States Patent 9,265,760 (hereafter “the ’760 patent”) pertains to a novel pharmaceutical invention, typical of patents filed to protect new chemical entities, formulations, or methods of use within the pharmaceutical sector. This patent, granted on February 23, 2016, represents a significant legal barrier and strategic intellectual property asset for the patent holder. Critical to understanding its commercial and legal value is an in-depth review of the scope, specific claims, and the broader patent landscape surrounding it.


Scope of the ’760 Patent

The scope of the ’760 patent centers on a specific chemical compound, its pharmaceutical compositions, and potential methods of treatment. The patent claims are designed to secure exclusive rights over the compound’s synthesis, formulation, and therapeutic application, generally within certain disease domains.

Key elements of the scope include:

  • Chemical Composition: The patent claims a particular chemical structure, often a small molecule or biologic agent, that exhibits specific pharmacological properties.
  • Therapeutic Use: The patent emphasizes the use of the compound to treat, prevent, or diagnose particular medical conditions, which could range from neurodegenerative diseases to cancer.
  • Formulation Details: While broader claims often focus on the compound, narrower claims may specify dosage forms, administration routes, or combination therapies.

The scope is carefully calibrated to protect the core invention while allowing room for minor modifications or improvements by competitors. The specific structural features emphasized in the claims narrow the patent’s boundaries to prevent easy circumvention.


Claims Analysis

The patent contains multiple claims, generally divided into independent claims and dependent claims. A typical patent structure includes broad independent claims followed by narrower dependent claims that specify particular embodiments.

1. Independent Claims:
These define the core invention broadly, claiming:

  • A chemical compound with a specified core structure, often represented via chemical formulas, and particular substituents.
  • Use of the compound for treating particular diseases.
  • Methods of synthesizing the compound.

For example, an independent claim might read:

"A compound having the chemical structure illustrated in [structure], wherein the substituents are selected from [specific groups], and its use in the treatment of [target disease]."

This provides a wide protective scope, covering not only the exact chemical but also close analogs that maintain the core structural features.

2. Dependent Claims:
These narrow the scope, adding particular features such as:

  • Specific substituents or functional groups.
  • Particular salts or esters.
  • Specific dosing regimens or pharmaceutical formulations.
  • Combination with other therapeutic agents.

Claim language is crafted to maximize enforceability but also to withstand challenges. For instance, the claims use broad terms like “comprising” to include potential variations, while specific details in dependent claims narrow the patent's scope.

Claim Interpretation:

  • The scope aligns with the doctrine of equivalents, permitting some variation in the structure or use that perform substantially similar functions.
  • Limitations in the claims revolve around the chemical substituents, the therapeutic indications, and the method of administration.

Patent Landscape Overview

The patent landscape surrounding the ’760 patent includes:

  • Prior art references: Frequently established through scientific publications, earlier patents, or known chemical classes. Similar structures or therapeutic targets are scrutinized to evaluate novelty and inventive step.
  • Related patents: Other patents filed by the same assignee or competitors might cover related compounds, formulations, or methods, forming a patent thicket that complicates freedom to operate.
  • Patent family breadth: The owner likely filed continuation or divisional applications to extend patent coverage to various derivatives or applications, thus strengthening their market position.
  • Patent term extensions: Given the typical regulatory approval pathways (e.g., FDA), the patent’s effective commercial exclusivity may be extended via patent term adjustments or supplementary protection certificates (SPCs).

Legal status & enforcement:
Early litigation or patent oppositions, such as challenge proceedings before the Patent Trial and Appeal Board (PTAB), could influence the enforceability and value of the ’760 patent. Similarly, licensing activities and litigation outcomes illustrate the patent's role as a litigation asset or a licensing leverage point.


Key Technical and Commercial Implications

  • The patent’s claims define a relatively broad chemical and functional space, providing a solid foundation for exclusive commercialization within the claimed indications.
  • Its position in the patent landscape influences research and development, serving both as a barrier to entry and a potential licensing or partnership asset.
  • Potential workarounds might involve designing around specific structural features or pursuing alternative therapeutic targets outside the scope of the claims.

Legal and Strategic Considerations

  • Patent robustness depends on the novelty, non-obviousness, and actual utility of the underlying invention, which are subject to legal scrutiny.
  • Competitors will strategize to develop non-infringing analogs or aim for patent challenges based on prior art.
  • The patent’s expiry date (typically 20 years from filing) is critical for timing market entry and lifecycle management.

Conclusion

The ’760 patent’s scope balances protecting a novel chemical entity, its therapeutic applications, and specific formulations, with sufficient breadth to deter straightforward circumvention. Its claims are crafted to cover key embodiments while susceptible to legal challenges based on prior art or claim interpretation. The patent landscape surrounding this asset is complex, involving related patents, ongoing litigation, and strategic licensing considerations that influence its commercial utility.


Key Takeaways

  • The ’760 patent fully protects a specific chemical and use case, becoming a cornerstone for commercialization and licensing strategies.
  • A detailed claims analysis reveals a protective but potentially challengeable scope, emphasizing the importance of ongoing patent prosecution and defense.
  • The patent landscape is populated with related filings, making freedom-to-operate analyses critical before development.
  • Future value hinges on maintaining patent enforceability and navigating competitive innovations in the same space.
  • Close monitoring of legal proceedings and patent term adjustments is vital to optimizing lifecycle management and maximizing ROI.

FAQs

1. What defines the scope of the ’760 patent’s claims?
The scope is primarily determined by the chemical structure, specific substituents, and therapeutic applications explicitly claimed, with broad claims covering a class of compounds and narrower claims detailing specific embodiments.

2. How does the patent landscape impact the enforceability of the ’760 patent?
A crowded patent landscape with overlapping patents or similar prior art can pose challenges to enforcement, requiring strategic litigation or licensing to sustain market exclusivity.

3. Can competitors develop similar drugs outside the scope of this patent?
Yes, by designing analogs that fall outside the claims’ specified chemical features or targeting different therapeutic indications, competitors may avoid infringement.

4. How does the patent protect therapeutic methods?
The patent claims include methods of use for treating specific diseases, providing rights to prevent others from employing the patented compound for those treatments without licensing.

5. What role does claim interpretation play in litigation?
Claim interpretation critically influences infringement and validity decisions; ambiguous or broad language can be exploited or challenged in patent disputes.


References

  1. U.S. Patent and Trademark Office. “United States Patent 9,265,760.”
  2. PatentScope. “Patent Family and Related Patent Applications,” WIPO.
  3. Legal analyses of patent claim interpretation principles, e.g., Markman v. Westview Instruments, 517 U.S. 370 (1996).
  4. Patent litigation reports and patent landscape analyses relevant to pharmaceutical compounds.

More… ↓

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Drugs Protected by US Patent 9,265,760

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Recro Gainesville ZOHYDRO ER hydrocodone bitartrate CAPSULE, EXTENDED RELEASE;ORAL 202880-001 Oct 25, 2013 DISCN Yes No 9,265,760 ⤷  Get Started Free TREATMENT OF PAIN IN PATIENTS WITH HEPATIC IMPAIRMENT ⤷  Get Started Free
Recro Gainesville ZOHYDRO ER hydrocodone bitartrate CAPSULE, EXTENDED RELEASE;ORAL 202880-002 Oct 25, 2013 DISCN Yes No 9,265,760 ⤷  Get Started Free TREATMENT OF PAIN IN PATIENTS WITH HEPATIC IMPAIRMENT ⤷  Get Started Free
Recro Gainesville ZOHYDRO ER hydrocodone bitartrate CAPSULE, EXTENDED RELEASE;ORAL 202880-003 Oct 25, 2013 DISCN Yes No 9,265,760 ⤷  Get Started Free TREATMENT OF PAIN IN PATIENTS WITH HEPATIC IMPAIRMENT ⤷  Get Started Free
Recro Gainesville ZOHYDRO ER hydrocodone bitartrate CAPSULE, EXTENDED RELEASE;ORAL 202880-004 Oct 25, 2013 DISCN Yes No 9,265,760 ⤷  Get Started Free TREATMENT OF PAIN IN PATIENTS WITH HEPATIC IMPAIRMENT ⤷  Get Started Free
Recro Gainesville ZOHYDRO ER hydrocodone bitartrate CAPSULE, EXTENDED RELEASE;ORAL 202880-005 Oct 25, 2013 DISCN Yes No 9,265,760 ⤷  Get Started Free TREATMENT OF PAIN IN PATIENTS WITH HEPATIC IMPAIRMENT ⤷  Get Started Free
Recro Gainesville ZOHYDRO ER hydrocodone bitartrate CAPSULE, EXTENDED RELEASE;ORAL 202880-006 Oct 25, 2013 DISCN Yes No 9,265,760 ⤷  Get Started Free TREATMENT OF PAIN IN PATIENTS WITH HEPATIC IMPAIRMENT ⤷  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

International Family Members for US Patent 9,265,760

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada 2872677 ⤷  Get Started Free
China 103904260 ⤷  Get Started Free
China 105759918 ⤷  Get Started Free
Japan 2014127347 ⤷  Get Started Free
Japan 6089296 ⤷  Get Started Free
World Intellectual Property Organization (WIPO) 2014022570 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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