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Last Updated: June 14, 2025

Details for Patent: 11,197,909


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Which drugs does patent 11,197,909 protect, and when does it expire?

Patent 11,197,909 protects REZZAYO and is included in one NDA.

This patent has seven patent family members in six countries.

Summary for Patent: 11,197,909
Title:Compositions and methods for the treatment of fungal infections
Abstract:The disclosure features non-irritating pharmaceutical compositions containing CD101 in pharmaceutical acceptable salt (e.g., CD101 acetate) or neutral form. The pharmaceutical compositions can be intravenously administered to a subject to treat fungal infections (e.g., candidiasis) in the subject.
Inventor(s):Kenneth BARTIZAL, Paul Daruwala, David Hughes, Martin Patrick HUGHES, Navdeep B. Malkar, Balasingam Radhakrishnan, Anuradha Vaidya
Assignee:NAPP PHARMACEUTICAL GROUP Ltd
Application Number:US16/629,711
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Understanding the Scope and Claims of United States Patent 11,197,909

Introduction

United States Patent 11,197,909, titled "Compositions and methods for the treatment of fungal infections," is a significant patent in the pharmaceutical field, particularly in the treatment of fungal infections. This article delves into the details of the patent's scope, claims, and the broader patent landscape to provide a comprehensive understanding.

Patent Overview

Publication Details

  • Publication Number: US11197909B2
  • Prior Art Date: This patent builds on prior art related to pharmaceutical compositions and methods for treating fungal infections[1].

Subject Matter

The patent focuses on non-irritating pharmaceutical compositions containing CD101, either in its pharmaceutical acceptable salt form (e.g., CD101 acetate) or in its neutral form. These compositions are designed to treat various fungal infections, including candidiasis[1].

Claim Scope

Importance of Claim Scope

The scope of the claims in a patent is crucial for determining the extent of protection and the validity of the patent. A broader claim scope may offer wider protection but is often more challenging to get granted and can be easier to invalidate[4].

Claim Structure

The claims in US Patent 11,197,909 are structured to cover both the compositions and the methods of treatment. Here are some key aspects:

  • Independent Claims: These claims define the broadest scope of the invention. For example, Claim 1 might describe the pharmaceutical composition containing CD101 in a specific form, while subsequent claims might narrow down to specific embodiments or methods of use[1].
  • Dependent Claims: These claims build upon the independent claims, providing additional details or limitations. They help in securing a stronger patent by covering various aspects of the invention[1].

Claim Length and Count

Research has shown that the length and count of independent claims can significantly impact the patent's scope and the likelihood of its grant. Narrower claims, both in length and count, are often associated with a higher probability of grant and a shorter examination process[2].

Patent Claims Analysis

Independent Claim Length

The independent claims in US Patent 11,197,909 are detailed but not overly broad. They specify the composition and its components, ensuring that the claim is anchored to the embodiments disclosed in the specification. This approach helps in avoiding the pitfalls of overly broad claims that might fall under the abstract idea exception[4].

Claim Count

The patent includes multiple claims, each serving to define different aspects of the invention. By having a balanced number of claims, the patent ensures comprehensive coverage without being too broad or too narrow.

Patent Examination Process

Narrowing Claims

During the examination process, patent claims often undergo revisions to narrow their scope. This is evident from studies showing that the examination process tends to narrow the scope of patent claims in terms of both claim length and claim count. This narrowing helps in increasing the likelihood of the patent being granted and reduces the risk of invalidation[2].

Office Actions and Global Dossier

Tools like the Global Dossier and the Patent Examination Data System (PEDS) provided by the USPTO facilitate the examination process by allowing access to file histories and related applications. These resources help in identifying office actions and prior art, which are crucial in refining the claim scope[3].

Prior Art and Novelty

Prior Art Considerations

The patent landscape for fungal infection treatments is rich with prior art. The claims in US Patent 11,197,909 must be carefully crafted to distinguish the invention from existing prior art. This involves ensuring that the composition and methods described are novel and non-obvious over the prior art[1].

Novelty and Non-Obviousness

The patent's novelty and non-obviousness are key factors in its validity. By specifying unique aspects of the CD101 composition and its application, the patent ensures that it meets these criteria. For instance, the use of CD101 acetate or its neutral form in a non-irritating pharmaceutical composition is a significant advancement over prior treatments[1].

Economic and Social Implications

Innovation Incentives

The scope and claims of a patent can significantly impact innovation incentives. Overly broad claims can lead to increased licensing and litigation costs, which can deter innovation. In contrast, well-defined claims that balance breadth and specificity can foster innovation by providing clear boundaries and incentives for further research and development[2].

Market Impact

The patent's impact on the market for fungal infection treatments is substantial. By providing a non-irritating and effective treatment option, the patent can improve patient outcomes and reduce healthcare costs associated with fungal infections.

Legal Framework and Court Decisions

Abstract Idea Exception

The abstract idea exception, as outlined in the Alice v. CLS Bank decision, is a critical consideration in patent claim drafting. Claims that are too broad and merely invoke generic processes or machinery without a specific means or method to improve the relevant technology risk being invalidated under this exception[4].

Recent Court Decisions

Recent court decisions, such as Yu v. Apple Inc. and Minerva Surgical, Inc. v. Hologic, Inc., highlight the importance of proper claim scope. These decisions emphasize the need for claims to be anchored to specific embodiments and to avoid overgeneralization that could lead to invalidation[4].

Conclusion

Balancing Claim Scope

The success of US Patent 11,197,909 hinges on the careful balancing of its claim scope. By ensuring that the claims are neither too broad nor too narrow, the patent provides robust protection while avoiding the risks of invalidation.

Key Takeaways

  • Claim Scope: The patent's claims must be carefully crafted to balance breadth and specificity.
  • Prior Art: The claims must distinguish the invention from prior art to ensure novelty and non-obviousness.
  • Examination Process: The patent examination process often narrows the claim scope to increase the likelihood of grant.
  • Legal Framework: Claims must comply with legal frameworks, such as the abstract idea exception, to avoid invalidation.
  • Market Impact: The patent can significantly impact the market for fungal infection treatments by providing a non-irritating and effective treatment option.

FAQs

What is the main subject matter of US Patent 11,197,909?

The main subject matter is the composition and methods for treating fungal infections using CD101 in its pharmaceutical acceptable salt form or neutral form.

Why is claim scope important in patent applications?

Claim scope is crucial because it determines the extent of protection and the validity of the patent. Overly broad claims can be easier to invalidate, while overly narrow claims may not provide sufficient protection.

How does the patent examination process affect claim scope?

The examination process often narrows the claim scope to increase the likelihood of grant and reduce the risk of invalidation.

What is the abstract idea exception, and how does it impact patent claims?

The abstract idea exception is a legal framework that invalidates claims directed to abstract ideas without a specific means or method to improve the relevant technology. This requires claims to be anchored to specific embodiments to avoid invalidation.

How can one search for patents related to a specific invention or inventor?

One can use the USPTO's online database, selecting "Assignee Name" or "Inventor Name" to search for patents issued after 1976. For patents issued before 1976, consulting specific volumes at the D. H. Hill Jr. Library is recommended[5].

Sources

  1. US Patent 11,197,909: Compositions and methods for the treatment of fungal infections.
  2. Patent Claims and Patent Scope: Metrics for measuring patent scope based on claim language.
  3. USPTO Search for Patents: Tools and resources for searching patents.
  4. The Importance of Getting the Claim Scope Right in a US Patent Application: Insights on claim scope and its implications.
  5. Patents Belonging to a Person or Organization: Guide on searching patents by inventor or assignee name.

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Drugs Protected by US Patent 11,197,909

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Mundipharma REZZAYO rezafungin acetate POWDER;INTRAVENOUS 217417-001 Mar 22, 2023 RX Yes Yes 11,197,909 ⤷  Try for Free Y Y TREATMENT OF CANDIDEMIA AND INVASIVE CANDIDIASIS WITH REZAFUNGIN BY INTRAVENOUS ADMINISTRATION ⤷  Try for 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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