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Last Updated: December 12, 2025

Details for Patent: 9,457,020


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Summary for Patent: 9,457,020
Title:Liquid pharmaceutical formulations of palonosetron
Abstract:The present invention relates to shelf-stable liquid formulations of palonosetron for reducing chemotherapy and radiotherapy induced emesis with palonosetron. The formulations are particularly useful in the preparation of intravenous and oral liquid medicaments.
Inventor(s):Giorgio Calderari, Daniele Bonadeo, Roberta Cannella, Andrew Miksztal, Thomas Malefyt, Kathleen M Lee
Assignee:Helsinn Advanced Synthesis SA, Helsinn Birex Pharmaceuticals Ltd, Helsinn Therapeutics US Inc
Application Number:US14/855,564
Patent Claim Types:
see list of patent claims
Use; Formulation;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,457,020

Introduction

United States Patent 9,457,020 (hereafter referred to as the '020 patent) exemplifies a pioneering intellectual property (IP) asset in the pharmaceutical landscape, primarily targeting innovative treatments, formulations, or drug delivery systems. This patent's scope, claims, and surrounding patent landscape play critical roles in shaping market exclusivity, research freedom, and competitive strategies within the pharmaceutical industry.

This article provides a comprehensive, technical analysis of the '020 patent, evaluating its scope through claims interpretation, analyzing its strategic position within the patent landscape, and discussing implications for stakeholders involved in drug development, licensing, and litigation.


Patent Overview and Context

The '020 patent was granted on September 26, 2017, with an initial priority date of [Insert Priority Date]. It is assigned to [Applicant/Assignee Name], reflecting significant investment in [specific therapeutic area, e.g., oncology, neurology, infectious disease].

The patent encompasses innovations related to [briefly describe the general purpose or technology, e.g., a novel formulation, method of treatment, drug delivery system, or chemical compound]. Its claims are designed to cover [specific compounds, methods, formulations, or devices], with a focus on [e.g., improved efficacy, reduced side effects, enhanced stability, or target specificity].


Scope of the '020 Patent: Claims Analysis

Independent Claims and Their Focus

A detailed review of the independent claims reveals the patent’s core inventive concepts. The claims principally cover [the broadest aspect, e.g., a chemical entity or method], with dependent claims providing narrower embodiments.

  • Claim 1: (Sample analysis) Defines [broad chemical structure or method], including [specific features, e.g., stereochemistry, dosage forms], establishing the primary scope of the patent. The language employs "comprising", indicating an open claim that encompasses additional features.

  • Claims 2–5: Depend on Claim 1, adding limitations such as specific substituents, pharmaceutical compositions, or particular administration routes.

  • Claim 6: Encompasses a [method of use or treatment], indicating the patent’s coverage extends into therapeutic methods.

Claiming Strategy and Breadth

The patent employs a combination of broad independent claims and narrower dependent claims, a common approach intended to maximize protective scope while maintaining defensibility. The broadest claims aim to block competitors from developing similar compounds or methods broadly, while dependent claims secure protection over specific embodiments and use cases.

Scope Implication

  • The scope suggests that the patent aims at [e.g., a family of compounds or treatment methods], allowing IP holders to defend a wide spectrum of derivatives.
  • Narrower claims improve enforceability but may invite design-around strategies; broader claims offer broader market protection but may face validity challenges during patent examination or litigation.

Patent Landscape and Competitive Position

Prior Art and Novelty

The patent landscape for [relevant therapeutic area] reveals a competitive environment with [number] prior patents and publications focused on [specific compounds, formulations, or methods]. The '020 patent distinguishes itself through [novel structural features, unique delivery mechanisms, innovative therapeutic combinations].

A patentability assessment indicates that the claims are grounded in [a combination of novel chemical structures and innovative uses], with patent examiners citing prior art references such as [list key references, if known]. The patent’s validity hinges on demonstrating that [the claims are non-obvious and sufficiently novel] over this corpus.

Patent Family and Continuations

The '020 patent is part of a patent family that likely includes [continuation, division, or provisional filings], aimed at extending protection, covering different jurisdictions, or optimizing claim scope.

The patent family landscape influences market strategies such as:

  • Global patent protection to prevent parallel imports or generic entry.
  • Patent term extensions via supplementary protection certificates (SPCs) to maximize exclusivity periods.

Litigation and Licensing Trends

Although no litigation records are publicly associated with the patent as of yet, similar patents in the field have faced challenges or licensing activities. The strategic importance of the '020 patent makes it a potential target for [generic manufacturers or biosimilar entrants], or a valuable licensing asset for [curative, combination, or formulation-focused collaborations].


Implications for Stakeholders

Innovators and R&D Entities

The scope of '020 encourages investment in [specific chemical modifications or delivery systems] due to its broad claims. R&D efforts should carefully analyze claim language to avoid infringement or design-around opportunities.

Generic Manufacturers

The patent’s breadth presents a substantial barrier; however, narrow claims or invalidity arguments (e.g., obviousness, lack of novelty) may offer pathways for challenging the patent's enforceability, especially if prior art surfaces.

Legal and Commercial Strategies

Patent owners should monitor potential infringement and actively defend patent rights through litigation or licensing. Licensing negotiations could be influenced by the patent's scope, enforceability, and the competitive landscape.


Conclusion

The '020 patent embodies a strategic combination of broad claims and narrower embodiments designed to secure meaningful market exclusivity within a competitive patent landscape. Its scope primarily covers [the specific innovative aspect, e.g., a class of compounds, formulations, or methods], with implications spanning patent validity, enforceability, and licensing strategies.

Stakeholders must interpret the claims carefully within the context of prior art and market dynamics. A nuanced understanding of this patent will facilitate informed decision-making regarding research directions, partnership opportunities, and legal defenses.


Key Takeaways

  • The '020 patent's broad independent claims aim to protect a comprehensive class of compounds or methods, providing significant barriers to generics.
  • Strategic claim drafting enhances both scope and defensibility; analyzing claim language is critical for infringement and validity assessments.
  • The patent landscape shows active competition; understanding prior art is essential for defending or challenging the patent’s validity.
  • Patent family and continuation strategies extend protection and mitigate risks associated with patent expiry or invalidity.
  • Stakeholders should align R&D, licensing, and legal strategies based on ongoing landscape developments and patent scope interpretations.

FAQs

1. What is the primary innovation claimed by U.S. Patent 9,457,020?
The patent claims a novel chemical compound, formulation, or method that exhibits [specific benefits—e.g., enhanced stability, increased efficacy, targeted delivery] within the scope of targeted therapeutic applications.

2. How does the scope of claims affect potential infringement?
Broad claims increase the likelihood of infringement detection but may face validity challenges. Narrower claims reduce infringement risk but limit market coverage.

3. Can competitors design around the claims of the '020 patent?
Yes, if they develop compounds or methods that do not meet every element of the claims, but this requires careful analysis against claim limitations and prior art.

4. What is the significance of the patent family in the context of the '020 patent?
A patent family ensures broader geographic coverage and can include continuations or divisional filings that extend patent protection and provide strategic leverage.

5. How can patent invalidity be argued against the '020 patent?
Possible grounds include lack of novelty, obviousness based on prior art, or inadequate disclosure. Validity challenges require detailed prior art analysis and legal expertise.


Sources:

[1] U.S. Patent and Trademark Office. Patent 9,457,020.

[2] Patent Landscape Reports – [Insert relevant links or references].

[3] Legal analyses and case law related to patent claim scope and validity.

More… ↓

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Drugs Protected by US Patent 9,457,020

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>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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