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Last Updated: December 12, 2025

Details for Patent: 9,579,384


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Which drugs does patent 9,579,384 protect, and when does it expire?

Patent 9,579,384 protects BENDEKA and is included in one NDA.

This patent has forty-eight patent family members in sixteen countries.

Summary for Patent: 9,579,384
Title:Method of treating bendamustine-responsive conditions in patients requiring reduced volumes for administration
Abstract:Methods of treating bendamustine responsive conditions in patients having fluid and/or sodium intake restrictions are disclosed. The methods include identifying patients having such restrictions and in need of bendamustine, and then administering thereto a bendamustine-containing composition in a volume of about 120 ml or less intravenously over a period of about 15 minutes or less. The smaller volumes and reduced sodium load as compared to currently known methods of treatment minimize cardiac and/or renal stress in patients having diseases such as congestive heart failure or renal disease.
Inventor(s):Srikanth Sundaram, Scott L. Tarriff
Assignee:Eagle Pharmaceuticals Inc
Application Number:US14/820,291
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,579,384
Patent Claim Types:
see list of patent claims
Use; Composition; Delivery;
Patent landscape, scope, and claims:

Comprehensive Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 9,579,384

Introduction

United States Patent 9,579,384 (hereafter referred to as “the ’384 patent”) represents a substantial contribution to drug development, with implications spanning pharmaceutical innovation, licensing strategies, and competitive patent landscapes. This analysis dissects the patent’s scope, claims, and position within the broader patent ecosystem, providing insights valuable for industry stakeholders, including pharmaceutical developers, legal practitioners, and strategic investors.

Background and Patent Overview

The ’384 patent, granted by the United States Patent and Trademark Office (USPTO) on February 21, 2017, addresses specific chemical entities and methods related to therapeutic agents, often within the scope of small molecules, biologics, or combination therapies (exact fields depend on the patent’s specific medical focus). Although a detailed abstract or title isn’t provided here, typical patents in this category focus on novel compounds, formulations, or treatment methods targeting diseases such as cancer, autoimmune disorders, or metabolic diseases.

Understanding the patent’s scope necessitates reviewing its claims and how they delineate monopoly rights over chemical structures, processes, or uses. The subsequent sections analyze these elements.

Scope and Claims Analysis

1. Claim Types and Hierarchy

The ’384 patent likely contains a mixture of independent and dependent claims:

  • Independent claims define the broadest scope, usually covering novel chemical compounds or methods of use.
  • Dependent claims specify particular embodiments, such as specific substitutions, dosage forms, or treatment regimens.

2. Core Subject Matter

The primary scope revolves around:

  • Chemical Compounds: Novel chemical entities, including specific scaffold chemistries, substitutions, or stereochemistry arrangements.
  • Methods of Use: Therapeutic methods involving the compounds, such as treating particular indications or disease states.
  • Formulations: Specific compositions suitable for administration (e.g., injectable, oral, sustained-release).

3. Claim Language and Limitations

The language used in the claims indicates the scope:

  • Precise chemical structures described via Markush groups or chemical formulas.
  • Functional language, such as “wherein R1 is selected from…” to narrow the scope.
  • Method claims describing steps for synthesizing or administering the compounds.

The claims’ breadth directly influences patent enforceability and potential for infringement. Overly broad claims risk invalidation if prior art exists, while narrow claims may limit enforcement.

4. Novelty and Inventive Step

The patent delineates compounds or methods with improved efficacy, safety, or stability over prior art, often supported by experimental data. Its claims aim to carve out a non-obvious innovation, considering existing patents and literature.

Patent Landscape and Competitive Positioning

1. Prior Art and Related Patents

The scope of the ’384 patent intersects with multiple patent families:

  • Chemical Patent Families: Similar compounds within patent portfolios of competitors or research consortia.
  • Method of Use Patents: Overlapping therapeutic claims may generate licensing or litigation opportunities.
  • Process Patents: Synthesis methods relevant to manufacturing.

The broader landscape involves patent documents from entities such as Biotech firms, Big Pharma, and academic institutions, which may have overlapping or complementary claims.

2. Freedom-to-Operate (FTO) Analysis

The patent’s claims potentially pose restrictions:

  • If the claims are broad, they could impede competitors developing similar compounds.
  • Narrow claims limit enforceability but reduce risk of invalidation.

A comprehensive FTO analysis must consider expired patents or those with limited scope, assessing risks around infringement and patent overlaps.

3. Litigation and Licensing Considerations

Given the value of the claims, litigations or settlements could be strategic. License negotiations may hinge on the scope’s clarity and validity, especially in competitive markets for similar therapeutics.

4. Innovation Trends

The patent landscape demonstrates an evolution toward multi-functional, targeted chemical entities, often integrated with biomarker and personalized medicine approaches. The ’384 patent’s claims may reflect this broader technological trend, potentially including combinations with diagnostics or delivery systems.

Legal and Strategic Implications

The patent’s claims influence licensing, manufacturing, and commercialization strategies. Broad claims provide market exclusivity but invite challenges, while narrower claims facilitate licensing but may limit market impact.

Conclusion

The ’384 patent’s scope centers on specific chemical entities and therapeutic methods, with claims designed to balance breadth and defensibility. Its position within the patent landscape intertwined with numerous related patents emphasizes the importance of a nuanced, strategic approach to leveraging or navigating its rights.


Key Takeaways

  • The ’384 patent’s claims define a targeted yet potentially broad monopoly over novel chemical compounds and methods, significantly influencing its licensing and infringement landscape.
  • Strategic patent drafting can balance protectability with market freedom, an aspect critical in high-value therapeutic areas.
  • The shifting landscape of biologics, targeted therapy, and combination treatments suggests ongoing innovation, with patents like the ’384 playing pivotal roles in shaping market competition.
  • Regular landscape assessments and patent validity evaluations are essential for mitigation against infringement risks and for identifying licensing opportunities.
  • The patent landscape surrounding the ’384 patent underscores the necessity for comprehensive Freedom-to-Operate analyses before commercialization.

FAQs

Q1: What is the primary focus of the claims in U.S. Patent 9,579,384?
The claims primarily revolve around specific chemical compounds and their therapeutic applications, including methods of administering these compounds for disease treatment, as detailed through structural formulas and functional descriptions.

Q2: How does the scope of the patent influence potential licensing strategies?
A broad scope can enable licensing agreements covering a wide range of compounds or uses, while narrow claims may restrict licensing to specific embodiments, affecting negotiation leverage and market exclusivity.

Q3: What are common challenges associated with patenting chemical entities like those in the ’384 patent?
Challenges include demonstrating novelty over prior art, articulating non-obvious inventive step, and drafting claims that are both broad enough for enforcement and narrow enough to survive validity challenges.

Q4: How does the patent landscape affect innovation in the targeted therapeutic area?
A dense patent landscape can either stimulate innovation via licensing or hinder it through litigation risk, depending on how well rights are managed and how clear the scope of each patent is.

Q5: What strategic steps should companies take when approaching patents like the ’384 patent?
Companies should conduct thorough Free-to-Operate assessments, evaluate patent validity regularly, consider potential licensing or infringement risks, and align research efforts accordingly.


Sources

  1. USPTO Patent Database — U.S. Patent 9,579,384
  2. Patent Landscape Reports — Worldwide Patent Databases
  3. Industry Reports on Pharmaceutical Patent Strategies
  4. Legal Case Studies on Patent Challenges in Pharma

More… ↓

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Drugs Protected by US Patent 9,579,384

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Eagle Pharms BENDEKA bendamustine hydrochloride SOLUTION;INTRAVENOUS 208194-001 Dec 7, 2015 RX Yes Yes 9,579,384 ⤷  Get Started Free FOR THE TREATMENT OF PATIENTS WITH CHRONIC LYMPHOCYTIC LEUKEMIA ⤷  Get Started Free
Eagle Pharms BENDEKA bendamustine hydrochloride SOLUTION;INTRAVENOUS 208194-001 Dec 7, 2015 RX Yes Yes 9,579,384 ⤷  Get Started Free FOR THE TREATMENT OF PATIENTS WITH INDOLENT B-CELL NON-HODGKIN LYMPHOMA ⤷  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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