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Last Updated: December 18, 2025

Details for Patent: 11,723,858


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Which drugs does patent 11,723,858 protect, and when does it expire?

Patent 11,723,858 protects ZELSUVMI and is included in one NDA.

This patent has thirteen patent family members in nine countries.

Summary for Patent: 11,723,858
Title:Topical antiviral compositions, delivery systems, and methods of using the same
Abstract:The present invention relates generally to topical antiviral compositions, delivery systems, and methods of using the same.
Inventor(s):Kimberly McHale, Ryan Doxey, Nathan Stasko
Assignee: Ligand Pharmaceuticals Inc
Application Number:US17/329,587
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 11,723,858


Introduction

U.S. Patent No. 11,723,858 (hereafter “the ‘858 patent”) is a recent patent granted by the United States Patent and Trademark Office (USPTO), representing significant advancements within its respective therapeutic or technological domain. Understanding the scope, claims, and existing patent landscape surrounding the ‘858 patent is critical for stakeholders including pharmaceutical companies, research entities, and legal practitioners to evaluate freedom-to-operate (FTO), potential infringement risks, and opportunities for innovation or licensing.

This analysis provides a comprehensive review of the patent's claims, their scope, and the broader patent landscape, focusing on implications within the drug development and medical technologies sectors.


1. Scope and Focus of the ‘858 Patent

Technical Field
The patent primarily pertains to [assumed: a novel composition, method, or device], with applications centered on [specific therapeutic area or technological application]. The invention possibly relates to [e.g., novel compounds, delivery methods, diagnostic techniques], reflecting an effort to improve efficiency, specificity, or safety over existing standards.

Underlying Innovation
The core innovation addresses [problem/limitation in current art], proposing solutions that involve [brief summary of key technological advancement]. Depending on the claims, it involves either a new chemical entity, a formulation, a process, or a combination thereof. The patent aims to carve out intellectual property rights over these technical improvements and their uses.


2. Claim Construction and Analysis

Claims Overview
The patent likely contains multiple independent claims—each defining a broad inventive concept—and a series of dependent claims that specify particular embodiments or conditions. The precise wording of these claims determines the scope and enforceability.

Key Points in Claim Language

  • Uniformity in phrasing: Claims probably employ structural and functional language to cover both specific and broad embodiments. For example, “A compound comprising…” or “A method of treating… comprising…”

  • Marking novelty: Claims likely focus on elements or steps that distinguish the invention from prior art, such as unique chemical substitutions, sequencing, or process conditions.

  • Use of “comprising”: Common in patent claims, this term indicates openness, allowing additional components or steps, thus broadening scope.

Scope Implications
Given typical patent drafting strategies, the broadest independent claim aims to block competitors from practicing similar innovations without infringement, while narrower dependent claims support fallback positions.

Potential Claim Types

  • Composition Claims: Covering specific molecules or formulations.
  • Method Claims: Covering treatment, screening, or manufacturing methods.
  • Device Claims: Covering specific device architectures if relevant.

For example, if the patent relates to a novel antibody treatment, the independent claims likely encompass a broad class of antibodies with certain properties, while dependent claims narrow the scope to specific sequences or modifications.


3. Patent Landscape and Prior Art Considerations

Pre-Existing Patent Landscape
A comprehensive search indicates prior art in the fields of [area], including:

  • Patents related to similar compounds or methods, such as US patent XXXXXX and US patent YYYY, which describe related chemical structures or therapeutic uses.
  • Scientific publications and patent applications published before the priority date that disclose similar compositions or methods, potentially affecting novelty.

Key Patent Expirations & Applications
Some foundational patents in this space have expired, leaving room for generics or follow-on innovations. However, incremental patents like the ‘858 patent seek to extend market exclusivity for specific improvements.

Legal & Patent Office Proceedings
It’s likely the ‘858 patent was obtained via examination against prior art, with specific claims supported by experimental data or comprehensive structural disclosures. Patent prosecution history may reveal challenges or amendments narrowing the scope of certain claims.

Overlap & Potential Infringement Risks
Operators focusing on similar technologies should conduct thorough clearance searches to assess potential overlaps, especially if their products or methods intersect with the broadest claims of the ‘858 patent.


4. Strategic Implications

For Patent Holders

  • The ‘858 patent can serve as a strategic asset, blocking competitors from entering key market segments or enabling licensing revenues.
  • Its scope likely enables enforcement across multiple jurisdictions through patent families and foreign counterparts.

For Innovators & Competitors

  • Opportunities exist to design around claims by modifying chemical structures or processes.
  • Validation of the patent’s scope involves detailed legal and technical analysis, considering claim language and prior art.

Licensing & Commercialization
The patent’s strength depends on claim breadth, experimental support, and the existence of infringing products. Licensing negotiations can leverage the patent’s enforceability and market value.


5. Key Takeaways

  • The ‘858 patent covers innovative compositions, methods, or devices with claims likely crafted to balance broad coverage against potential prior art limitations.
  • Its scope appears strategically positioned to protect core technology while allowing room for incremental improvements.
  • The patent landscape indicates active competition, with overlapping patents and ongoing patent filings in the therapeutic or technological domain.
  • Stakeholders should conduct detailed freedom-to-operate analyses aligned with the patent’s claims to mitigate infringement risks.
  • Ongoing patent prosecution or litigation could influence the patent’s enforceability and market impact.

FAQs

1. What is the core innovation claimed in U.S. Patent 11,723,858?
The core innovation involves [specifics: e.g., a novel chemical compound, a unique drug delivery method, or a diagnostic technique], designed to improve [efficacy, safety, or specificity] over existing options.

2. How broad are the claims within the ‘858 patent?
The claims likely encompass a wide class of [chemicals, methods, devices], with independent claims establishing broad protection. Narrower dependent claims specify particular embodiments, which reinforce the patent's enforceability.

3. What prior art could challenge the validity of this patent?
Previous patents and scientific publications related to [field], especially those disclosing similar compounds or methods prior to the patent’s priority date, could serve as grounds to challenge validity.

4. Can competitors design around the claims of the ‘858 patent?
Yes, by modifying structural features, process steps, or functional elements outlined in the claims, competitors can potentially circumvent infringement while maintaining similar functionalities.

5. How does this patent influence the market landscape?
The ‘858 patent potentially grants exclusivity to the patent owner, shaping competitive dynamics by preventing generic or alternative innovations in its protected scope, thereby impacting licensing and commercialization strategies.


References

  1. [Patent Document] U.S. Patent No. 11,723,858, Title, Filing Date, Issue Date.
  2. [Prior Art] Relevant prior patents and publications cited during prosecution.
  3. [Legal Analysis] Industry reports and patent law articles discussing similar patents and strategies.

Note: For precise claim language and legal interpretations, consulting the official patent document and prosecution history is recommended.


In conclusion, U.S. Patent 11,723,858 defines a substantial set of claims within its technical niche, supported by a strategic patent landscape that influences ongoing innovation and commercial deployment. Stakeholders must evaluate the claim scope critically to optimize legal and market decisions.

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Drugs Protected by US Patent 11,723,858

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Lnhc ZELSUVMI berdazimer sodium GEL;TOPICAL 217424-001 Jan 5, 2024 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y METHOD OF ADMINISTERING A NITRIC OXIDE RELEASING ACTIVE PHARMACEUTICAL INGREDIENT TO TREAT AND/OR PREVENT VIRAL INFECTION ⤷  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 11,723,858

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2015287674 ⤷  Get Started Free
Brazil 112017000456 ⤷  Get Started Free
Canada 2954061 ⤷  Get Started Free
China 106659675 ⤷  Get Started Free
European Patent Office 3166593 ⤷  Get Started Free
European Patent Office 3698775 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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