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Last Updated: December 12, 2025

Litigation Details for Purdue Pharma L.P. v. Alvogen Pine Brook, LLC (D. Del. 2017)


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Purdue Pharma L.P. v. Alvogen Pine Brook, LLC (D. Del. 2017)

Docket ⤷  Get Started Free Date Filed 2017-08-11
Court District Court, D. Delaware Date Terminated 2018-04-24
Cause 35:0145 Assigned To Timothy Belcher Dyk
Jury Demand None Referred To
Parties PURDUE PHARMA L.P.
Patents 6,733,783; 8,309,060; 8,361,499; 8,529,948; 8,551,520; 8,647,667; 8,808,740; 9,023,401; 9,056,052; 9,060,940; 9,084,816; 9,095,614; 9,095,615; 9,198,863; 9,205,056; 9,289,391; 9,486,412; 9,486,413; 9,492,389; 9,492,390; 9,492,391; 9,517,236; 9,545,380; 9,572,779; 9,572,804; 9,669,023; 9,669,024; 9,675,610; 9,675,611; 9,682,077
Attorneys Michelle Wang
Firms Heyman Enerio Gattuso & Hirzel LLP
Link to Docket External link to docket
Small Molecule Drugs cited in Purdue Pharma L.P. v. Alvogen Pine Brook, LLC
The small molecule drugs covered by the patents cited in this case are ⤷  Get Started Free , ⤷  Get Started Free , and ⤷  Get Started Free .

Details for Purdue Pharma L.P. v. Alvogen Pine Brook, LLC (D. Del. 2017)

Date Filed Document No. Description Snippet Link To Document
2017-08-11 External link to document
2017-08-11 1 687-GMS, for patent infringement of United States Patents Nos. 6,733,783 (“the ‘783 patent”); 8,361,499…, for patent infringement of the ‘783 patent, the ‘499 patent, the ‘520 patent, the ‘667 patent, the …for patent infringement of the ‘052 patent; the ‘940 patent; the ‘816 patent; and the ‘614 patent based…alleging that the ‘023 patent, ‘024 patent, ‘610 patent, ‘611 patent, and ‘077 patent listed in the FDA’s…of each of the ‘023 patent, ‘024 patent, ‘611 patent, ‘077 patent, and ‘610 patent, and that the commercial External link to document
2017-08-11 22 the Commissioner of Patents and Trademarks for Patent/Trademark Number(s) 9,669,023 ;9,669,024 ;9,675,610…2017 24 April 2018 1:17-cv-01131 835 Patent - Abbreviated New Drug Application(ANDA) None External link to document
2017-08-11 5 the Commissioner of Patents and Trademarks for Patent/Trademark Number(s) 9,669,023; 9,669,024; 9,675,610…2017 24 April 2018 1:17-cv-01131 835 Patent - Abbreviated New Drug Application(ANDA) None External link to document
>Date Filed >Document No. >Description >Snippet >Link To Document

Litigation Summary and Analysis for Purdue Pharma L.P. v. Alvogen Pine Brook, LLC | 1:17-cv-01131

Last updated: August 12, 2025


Introduction

The litigation between Purdue Pharma L.P. and Alvogen Pine Brook, LLC, under case number 1:17-cv-01131, exemplifies the ongoing legal disputes surrounding opioid manufacturing and distribution. Purdue Pharma’s extensive legal challenges primarily revolve around allegations of misconduct in promoting opioid products, leading to numerous lawsuits aimed at holding the company accountable. This case specifically addresses patent infringement claims, as Purdue eyes the protection of its intellectual property amidst a highly competitive and scrutinized market.


Case Overview

Parties Involved

  • Plaintiff: Purdue Pharma L.P., a leading pharmaceutical manufacturer renowned for its opioid products, notably OxyContin.
  • Defendant: Alvogen Pine Brook, LLC, a pharmaceutical company engaged in the development, manufacturing, and marketing of generic pharmaceuticals aiming to compete with Purdue’s branded opioid offerings.

Legal Basis

The core of the dispute concentrates on patent rights, with Purdue asserting that Alvogen’s generic opioid products infringe upon patents held by Purdue. Purdue’s strategy involves leveraging patent protections to deter generic entry and preserve market share. Conversely, Alvogen contends that the patents asserted by Purdue are invalid or non-infringing, challenging Purdue’s claims and seeking approval for its competing products.


Key Legal Developments

Patent Infringement Claims

Purdue filed a complaint asserting that Alvogen’s generic formulations violate multiple patents owned by Purdue [1]. Patent infringement claims are common in pharmaceutical patent litigation, particularly when brand-name companies attempt to delay generic entry. The patents at issue likely cover specific formulations, methods of manufacture, or delivery mechanisms designed to maintain Purdue's market dominance.

Legal Strategies and Arguments

  • Purdue’s stance: The company maintains that its patents are valid, enforceable, and infringed by Alvogen’s products. Purdue also likely utilizes the Hatch-Waxman Act provisions to seek temporary and permanent injunctions to prevent the sale of infringing generics.
  • Alvogen’s response: The defendant challenges patent validity through arguments such as obviousness, lack of novelty, or insufficient disclosure. They may also argue that their products do not infringe on patented claims.

Procedural Posture and Voids

At this stage, the litigation involves pre-trial motions such as claim construction, patent validity challenges, and responses to preliminary injunction motions. Patent infringement cases often proceed through complex discovery phases, patent validity challenges, and potentially settlement or licensing negotiations.


Market and Regulatory Context

The Purdue-Alvogen case occurs amid heightened scrutiny over opioid litigation, with Purdue facing numerous lawsuits over alleged deceptive marketing and contribution to the opioid epidemic [2]. While this case focuses on patent issues, its resolution impacts market competition, particularly in the generic opioid segment—an area with significant public health and regulatory implications.

The case underscores the balancing act between protecting intellectual property rights and encouraging generic drug entry to reduce high medication costs and expand access. The Hatch-Waxman framework aims to strike this balance, with patent protections serving to incentivize innovation yet potentially delaying access to affordable generics.


Legal and Business Implications

For Purdue:

  • Patent Portfolio Defense: Purdue’s strategy emphasizes asserting and defending patents to maintain market exclusivity, crucial to its revenue model.
  • Market Strategy: Patent litigation delays generic competition, allowing Purdue to maximize profits during patent life.

For Alvogen:

  • Patent Challenges: Alvogen’s defense hinges on invalidating Purdue’s patents, opening pathways for generic market entry.
  • Market Access: Success could significantly increase market share and revenues, impacting Purdue’s dominance and public health dynamics.

Broader Industry Impact

The litigation highlights ongoing strategic plays in pharmaceutical patent enforcement. Outcomes influence patent strategies, generic drug approval pathways, and pricing dynamics. Moreover, prevailing legal interpretations regarding patent validity may shift industry standards and regulatory scrutiny.


Recent Developments and Prognosis

As of the latest filings, the case remains in the pre-trial phase, with litigation strategies actively shaping future procedural actions. Courts are likely to address critical issues such as patent validity and infringement scope. The possibility of settlement remains, especially if patent validity is challenged successfully by Alvogen or if both parties seek an early resolution to mitigate ongoing legal costs.

Legal commentators foresee that a favorable ruling for Purdue would reinforce its patent portfolio, delaying generic competition. Conversely, a ruling favoring Alvogen might pave the way for market entry, lowering opioid medication prices and disrupting Purdue’s revenue streams.


Conclusion

The Purdue Pharma v. Alvogen case encapsulates the intersection of intellectual property law, market competition, and ongoing opioid litigation complexities. As patent disputes unfold, their outcome will have profound implications for Purdue’s market exclusivity, generic drug pricing, and broader public health initiatives aimed at combating opioid misuse.


Key Takeaways

  • Patent infringement litigation remains a vital tool for brand-name pharmaceutical companies like Purdue to protect market share against generic competitors.
  • Alvogen’s challenge represents a strategic effort to weaken Purdue’s patent rights and facilitate the launch of generics.
  • The case’s outcome will influence patent law interpretations, generic drug market access, and pricing strategies within the opioid segment.
  • In the broader context, patent disputes can serve as catalysts for regulatory and legislative reforms impacting pharmaceutical innovation and access.
  • Stakeholders should monitor upcoming court decisions closely, as these will shape patent enforcement strategies and competitive dynamics.

FAQs

  1. What are the primary legal issues in Purdue Pharma v. Alvogen?
    The case centers on patent infringement and validity, with Purdue asserting that Alvogen’s generic opioids violate its patents, while Alvogen disputes the patents' validity and scope.

  2. How does this patent litigation impact opioid market competition?
    Successful patent enforcement delays generic entry, enabling Purdue to maintain higher prices and market dominance, whereas a ruling invalidating patents could trigger rapid generic competition, lowering prices.

  3. What is the significance of patent challenges under the Hatch-Waxman Act?
    The Act provides a framework for abbreviated approval pathways for generics and allows patent challenges, balancing innovation incentives with public access to affordable medications.

  4. Could this litigation influence public health policies?
    Indirectly, yes. Market disruptions caused by patent rulings impact drug pricing and availability, influencing affordability and access, and intersecting with opioid regulation policies.

  5. What are the prospects for settlement in this case?
    Given complex patent issues and strategic interests, a settlement or licensing agreement remains a tangible outcome to avoid lengthy litigation and market uncertainties.


Sources

[1] Court Docket, Purdue Pharma L.P. v. Alvogen Pine Brook, LLC, 1:17-cv-01131, U.S. District Court.
[2] U.S. Department of Justice, "Purdue Pharma and Purdue Frederick Companies Plead Guilty," 2020.

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