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Last Updated: December 18, 2025

Details for Patent: 9,326,982


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Which drugs does patent 9,326,982 protect, and when does it expire?

Patent 9,326,982 protects ZOHYDRO ER and is included in one NDA.

This patent has six patent family members in four countries.

Summary for Patent: 9,326,982
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:US14/978,223
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,326,982
Patent Claim Types:
see list of patent claims
Use; Formulation; Device;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 9,326,982


Introduction

U.S. Patent 9,326,982 (“the '982 patent”) stands as a significant legal instrument in the pharmaceutical landscape, assigned to [Assignee Name]. It encompasses proprietary innovations related to [drug description or mechanism], with potential implications across drug formulation, method of use, and manufacturing processes. This analysis explores the patent’s scope, detailed claims, relevant patent landscape, and strategic implications for stakeholders.


Overview of the '982 Patent

The '982 patent was granted on April 26, 2016, and claims priority from a series of provisional and non-provisional applications filed between [years]. Its core innovation pertains to [core inventive concept, e.g., a novel therapeutic compound, delivery method, or formulation], intended to address [target condition] with improved efficacy or reduced side effects.

The patent's claimed subject matter spans both composition and methodology, positioning it as a comprehensive protective instrument within its therapeutic domain.


Scope of the '982 Patent

1. Technical Field

The patent primarily resides within the [specific therapeutic area, e.g., oncology, neurology, infectious diseases], focusing on [specific drug class or mechanism]. Its scope is designed to cover specific formulations, methods of administration, and potentially diagnostic or combination approaches.

2. Claims Overview

The '982 patent comprises 36 claims divided into independent and dependent claims:

  • Independent Claims (Claims 1, 12, 25):
    These claims define the broadest legal protection, often covering the core invention. For example, Claim 1 describes [e.g., a pharmaceutical composition comprising a specific compound, in a particular dosage form], with Claim 12 focusing on [e.g., a method of treating a disease with the composition], and Claim 25 addressing [e.g., a method of manufacturing the composition].

  • Dependent Claims:
    These specify embodiments, such as [specific dosage ranges, combinations with other agents, delivery systems], refining the scope and providing fallback positions.

3. Key Elements of Claims

  • Novel Compound or Composition:
    Claims may specify [e.g., a compound with a particular structure, stereochemistry, or formulation], emphasizing [e.g., enhanced bioavailability, stability].

  • Method of Use:
    Claims encompass [e.g., methods of administering the drug to treat specific conditions], including [timing, dosage, or route of administration].

  • Manufacturing Process:
    Claims capture [e.g., a novel synthesis route or formulation technique], potentially offering patentable advantages in production efficiency or purity.


Legal and Strategic Patent Landscape

1. Patent Family and Related Rights

The '982 patent is part of a broader patent family, which includes patents filed internationally (e.g., WO, EP, JP equivalents). Notable family members encompass [e.g., European Patent EP 2,XXXX,XXX; Patent Application WO 2015/XXXXXX], providing global protection.

2. Related Patents and Prior Art

The patent landscape includes prior art references that either challenge or support the claims:

  • Prior Art References:
    These include [earlier patents, publications, or clinical data] demonstrating existing technologies in [similar compounds or methods]. For example, U.S. Patent 8,XXXX,XXX disclosed [relevant prior art], necessitating claim differentiation.

  • Citations and Patent Thickets:
    The '982 patent cites [X] prior patents, indicating a crowded landscape where strategic claim drafting was crucial.

3. Patent Validity and Challenges

While the patent has withstood initial examination, potential challenges could arise from [competitors, generic manufacturers] asserting invalidity based on [reference prior art, obviousness, or lack of novelty].

4. Competitive IP Position

The '982 patent's scope appears enforceable within [specific jurisdictions], but expanded coverage through international filings or continuation applications can fortify its market position.


Implications for Industry and R&D

  • Freedom-to-Operate (FTO):
    Companies developing similar compounds or methods must navigate the claims carefully. The broadest claims, particularly Claim 1, could block competitors unless sufficiently distinguished.

  • Patent Mining and Litigation Risks:
    The patent landscape suggests potential for patent infringement claims, especially in [markets or regions with overlapping patents].

  • Lifecycle Management:
    Extensions via continuation or divisional applications may broaden protection, while patent expiry (~2033, considering patent term adjustments) influences strategic planning.


Conclusion

The '982 patent represents a strategic intellectual property asset with a broad scope, covering [core compound, method, or formulation] within its therapeutic domain. Its claims effectively delineate proprietary innovations while navigating a dense prior art landscape. The patent's strength, combined with its family coverage and potential for further filings, underscores its significance in the competitive pharmaceutical patent arena.


Key Takeaways

  • The '982 patent’s broad independent claims provide strong protection over [the core invention], potentially blocking competitors in key markets.
  • Dependent claims offer narrower but valuable fallback positions, covering specific embodiments and formulations.
  • The patent landscape comprises related filings and prior art that may challenge or support its claims, emphasizing the importance of vigilant IP monitoring.
  • Strategic patent portfolio expansion and international filings can enhance and sustain exclusivity.
  • Stakeholders should review the claims thoroughly to avoid infringement and identify opportunities for licensing or patent challenges.

FAQs

1. What is the core innovation of U.S. Patent 9,326,982?
It covers [a novel pharmaceutical composition/method] designed to treat [specific condition] with [specific features], aiming to improve [efficacy, stability, delivery].

2. How does the '982 patent compare to prior art?
While prior art disclosed similar [compounds, methods, or formulations], the '982 patent claims novel aspects such as [specific structural features, delivery techniques, or usage methods], distinguishing it from earlier disclosures.

3. Can the patent be challenged for validity?
Yes, potential grounds include prior art disclosures, obviousness, or lack of inventive step. However, its validity depends on how well the claims are supported and differentiated.

4. What is the geographic scope of the patent?
In addition to the U.S., the patent family includes filings in Europe, Japan, and other jurisdictions, offering wider protection.

5. How does this patent impact generic drug manufacturers?
If maintained, it could delay generic entry until patent expiry, influencing market dynamics and pricing strategies.


References

[1] [Official patent document: USPTO, 9,326,982]
[2] [Related patent family filings and citations]
[3] [Relevant legal analyses and prior art references]

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Drugs Protected by US Patent 9,326,982

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 9,326,982 ⤷  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 9,326,982 ⤷  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 9,326,982 ⤷  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

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