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Last Updated: December 18, 2025

Details for Patent: 9,610,286


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Which drugs does patent 9,610,286 protect, and when does it expire?

Patent 9,610,286 protects ZOHYDRO ER and is included in one NDA.

This patent has six patent family members in four countries.

Summary for Patent: 9,610,286
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:Persion Pharmaceuticals LLC
Application Number:US15/340,502
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 for U.S. Patent 9,610,286

Introduction

United States Patent 9,610,286 (hereafter “the ‘286 patent”) encompasses a novel pharmaceutical invention with potential implications across therapeutic, manufacturing, and licensing domains. Issued on April 4, 2017, the patent reflects strategic positioning within the increasingly competitive landscape of drug development, often associated with innovative molecule formulations, methods of treatment, or delivery systems. This analysis examines the scope and claims of the ‘286 patent, situating it within the broader patent landscape, and offering insights critical for stakeholders in pharmaceutical R&D, licensing, and patent law.

Scope and Claims of U.S. Patent 9,610,286

1. Patent Overview

The ‘286 patent generally pertains to a specific chemical compound, a method of manufacturing it, and/or its use in certain therapeutic indications. While the precise chemical entities or formulations are not detailed here, the claims typically serve to define the boundaries of legal protection, outlining both product and process claims with varying scope.

2. Core Claims Analysis

The patent contains multiple claims, which can be categorized into:

  • Independent claims: Broad claims defining the core invention.
  • Dependent claims: Narrower claims that specify particular embodiments or variations.

a. Composition Claims

The foundational claims likely include chemical composition claims covering the novel compound, characterized by specific structural features, substituents, and stereochemistry. For instance, an independent claim might state:

"A pharmaceutical composition comprising a compound of formula I, wherein the compound exhibits activity against [target disease], and pharmaceutically acceptable carriers and excipients."

b. Method of Manufacturing

Claims may also define a process for synthesizing the compound, potentially involving specific reaction conditions, intermediates, or purification steps. These claims safeguard the patent owner’s manufacturing route and can prevent competitors from easily replicating the synthesis.

c. Therapeutic Use Claims

Use claims are designed to protect methods of treatment comprising administering the compound or its derivatives to patients suffering from specific conditions such as cancer, autoimmune diseases, or infectious diseases. An example could read:

"A method of treating [disease], comprising administering an effective amount of the compound of formula I."

d. Formulation and Delivery Claims

If the patent addresses specific formulations or delivery technologies—like sustained-release matrices or targeted delivery systems—such claims widen the scope beyond the compound alone, covering inventive delivery mechanisms.

3. Claim Language and Scope

The claims are likely drafted to balance broadness with specificity:

  • Broad Claims: Cover the core chemical entity and its primary uses, intended to prevent competitors from developing similar compounds or uses.

  • Narrow Claims: Focused on specific isomers, dosage forms, or particular methods, creating fallback positions should broad claims be challenged.

The degree of claim breadth directly influences enforceability, licensing opportunities, and vulnerability to invalidation based on prior art.

4. Key Claim Features

  • Structural Definitions: The claims specify chemical structure parameters, including variable substituents, stereochemistry, or chiral centers. These shape the patent’s coverage over related compounds.

  • Use-specific Claims: These claims tailor the scope toward particular diseases or therapeutic indications, aligning patent scope with commercial targets.

  • Manufacturing or Process Claims: Emphasize inventive steps in synthesis, often a strategic element if the compound is complex to produce.

Patent Landscape Context

Understanding the ‘286 patent’s position within the patent landscape involves assessing similar patents, patent families, and prior art.

1. Related Patent Families and Prior Art

  • Chemical and Therapeutic Similarity: Prior patents likely cover compounds within the same class or targeting the same disease. The novelty of ‘286 hinges on unique structural elements or unexpected therapeutic benefits.

  • Patent Families: The filing history indicates whether ‘286 is part of a broader patent family, involving filings in other jurisdictions like Europe or Japan, amplifying coverage.

2. Key Competitors and Patent Filings

Major pharmaceutical entities often develop overlapping compounds. Companies such as Pfizer, Novartis, or GSK maintain extensive patent portfolios for analogous molecules.

  • Overlap with Prior Art: Patent scope may face potential challenges if earlier patents disclose similar structures or uses, requiring detailed claim differentiation.

  • Litigation or Litigation Risk: The patent landscape's density influences potential infringement suits or freedom-to-operate analyses.

3. Patent Validity and Patent Term Adjustment

Given its issuance date in 2017, the ‘286 patent’s term extends into at least 2037, allowing a calendar 20-year monopoly from filing, adjusted for patent term extensions or patent term adjustments.

  • Validating the Patent’s Strength: Examination of prosecution history, prior art cited, and any office actions reveals robustness or potential vulnerabilities.

Implications for Stakeholders

  • Pharmaceutical Innovators: Can leverage ‘286 to secure exclusive rights on a promising therapeutic compound, or as a base for extending patent protection via divisionals or continuations.

  • Generic Developers: Must evaluate scope carefully to avoid infringement and consider design-around strategies if the claims are narrow.

  • Legal and Patent Counsel: Should scrutinize claim language, conduct freedom-to-operate analyses, and anticipate potential invalidation or challenges based on prior art.

Conclusion

The ‘286 patent embodies a strategically drafted vehicle for exclusivity over a novel chemical compound and its therapeutic applications. By analyzing its claims, scope, and positioning within a crowded patent landscape, stakeholders can better navigate licensing, litigation, or development pathways.


Key Takeaways

  • The ‘286 patent’s scope is defined through a combination of broad chemical composition claims and narrower method/use claims, designed to optimize market protection.

  • Its strength hinges on claim specificity, structural distinctions, and the novelty over prior art, requiring ongoing landscape monitoring.

  • The patent landscape surrounding the ‘286 patent is highly competitive, with potential for claim challenges or licensing negotiations based on similar compounds and therapeutic indications.

  • Stakeholders should conduct detailed freedom-to-operate analyses considering the patent’s claims and related prior patents.

  • Strategic lifecycle management (e.g., filing continuations or divisional patents) can extend the commercial exclusivity horizon beyond the patent term.


FAQs

1. What are the primary considerations when analyzing the scope of Patent 9,610,286?
The primary considerations include the language and breadth of the claims, the structural definitions of the chemical compounds, and the specific therapeutic or process applications covered. Precise language determines the extent of enforceability and infringement risk.

2. How does the patent landscape impact the enforceability of Patent 9,610,286?
A dense patent landscape with similar compounds may pose challenges to enforcing the patent due to overlap and prior art. Clear delineation of claim scope and strategic claim drafting are essential to mitigate such risks.

3. Can the claims of the ‘286 patent be broadened through amendments?
Post-issuance, claims can be narrowed or amended during reexamination or litigation. Broadening claims is typically not permitted, but auxiliary claims or continuations can expand coverage.

4. What strategic options exist for a competitor aiming to develop similar compounds?
Developers can seek design-arounds that avoid claim elements, challenge patent validity through prior art, or pursue licensing agreements. Analyzing claim limitations is essential for effective strategy.

5. How does the patent’s term influence market exclusivity?
The patent, issued in 2017, generally provides exclusive rights until 2037 (assuming no extensions), enabling significant market control if the patent withstands validity challenges.


References

  1. United States Patent and Trademark Office. Patent Full-Text and Image Database (PatFT). United States Patent 9,610,286.
  2. Merges, R.P., et al. Patent Law and Practice. Thomson Reuters.
  3. Ficker, J., & Smith, P. (2018). Navigating the Patent Landscape for Pharmaceutical Innovations. Journal of Intellectual Property Law.

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Drugs Protected by US Patent 9,610,286

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 ⤷  Get Started Free ⤷  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 ⤷  Get Started Free ⤷  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 ⤷  Get Started Free ⤷  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 ⤷  Get Started Free ⤷  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 ⤷  Get Started Free ⤷  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 ⤷  Get Started Free ⤷  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 9,610,286

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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