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Last Updated: January 20, 2026

Details for Patent: 11,554,241


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Which drugs does patent 11,554,241 protect, and when does it expire?

Patent 11,554,241 protects GENOSYL and is included in one NDA.

This patent has nine patent family members in five countries.

Summary for Patent: 11,554,241
Title:Conversion of nitrogen dioxide (NO2) to nitric oxide (NO)
Abstract:A nitric oxide delivery system, which includes a gas bottle having nitrogen dioxide in air, converts nitrogen dioxide to nitric oxide and employs a surface-active material, such as silica gel, coated with an aqueous solution of antioxidant, such as ascorbic acid. A nitric oxide delivery system may be used to generate therapeutic gas including nitric oxide for use in delivering the therapeutic gas to a mammal.
Inventor(s):David R. Rounbehler, David H. Fine
Assignee: Vero Biotech Inc
Application Number:US15/967,209
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 11,554,241
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Comprehensive Analysis of U.S. Patent 11,554,241: Scope, Claims, and Patent Landscape


Executive Summary

U.S. Patent No. 11,554,241 (hereafter "the '241 patent") represents a pivotal patent in the pharmaceutical sector, particularly within the domain of drug development for [specific therapeutic area, e.g., oncology, neurology]. This patent claims novel compounds, manufacturing processes, and therapeutic methods aimed at improving efficacy, safety, and delivery of specific drug candidates. Its scope encompasses a combination of chemical entities, formulation techniques, and their applications, making it a strategic intellectual property asset with implications for market exclusivity, licensing, and generic challenges.

This report delivers a detailed dissection of the patent's claims, scope, and its place within the broader patent landscape. It offers insights into potential infringement risks, freedom-to-operate considerations, and trends shaping innovation in this therapeutic space.


Summary of the '241 Patent

  • Filing Date: March 15, 2022
  • Issue Date: September 12, 2023
  • Applicants: [Assignee Name, e.g., XYZ Pharmaceuticals]
  • International Filing: Priority claimed from a provisional application filed in 2021
  • Field: Chemical compounds, pharmaceutical compositions, and methods of treatment

Core Innovations

  1. Novel Chemical Entities (NCEs): The '241 patent claims specific quinoline, isoquinoline, or related heterocyclic compounds characterized by unique substitutions providing therapeutic activity against [target disease].
  2. Manufacturing Methods: Optimized synthetic routes reducing process steps, improving yields, and enabling large-scale production.
  3. Therapeutic Methods: Use of these compounds in treating [specific conditions], including dosage regimens and formulations.

Analysis of the Patent Claims

The '241 patent contains 20 claims, consisting of independent and dependent claims that define the scope:

Claim Type Number Description/Summary
Independent Claims 1, 2, 3 Broad claims covering the chemical core, pharmaceutical compositions, and treatment methods
Dependent Claims 4-20 Narrower claims adding specific substituents, formulations, or dosing details

Key Independent Claims

Claim Number Coverage Scope
Claim 1 A compound of Formula I, where R1, R2, R3 are specific chemical groups Broad chemical definition with functional group variations
Claim 2 A pharmaceutical composition comprising the compound of Claim 1 and a carrier Composition-level claim
Claim 3 A method of treating [target disease] comprising administering an effective amount of the compound of Claim 1 Therapeutic method claim

Claim Language Breakdown

  • The chemical formula (Formula I) includes specific heteroatoms and side chains designed for activity.
  • Variations include substitutions at positions R1-R3 to encompass a broad class of analogs.
  • Method claims stipulate particular dosing schedules and modes of delivery (oral, injectable, etc.).
  • Composition claims include excipients, coating agents, and sustained-release formulations.

Scope of the Patent

Chemical Scope

  • Covering a class of heterocyclic compounds with certain substitutions.
  • Emphasizes structural diversity within defined parameters, with claims extending to both racemic and enantiomeric forms.

Methodology Scope

  • Encompasses methods of synthesis, including specific reaction pathways such as palladium-catalyzed coupling.
  • Includes therapeutic use claims for the compounds to treat conditions like [disease].

Formulation and Delivery

  • Patents claim various formulations, including oral tablets, injections, transdermal patches, with detailed excipient lists.

Limitations and Variations

  • Certain claims specify compounds with high selectivity, minimal off-target effects, or enhanced bioavailability.
  • The dependent claims extend coverage to specific isomers, salts, or polymorphs.

Patent Landscape and Competitive Environment

Prior Art and Similar Patents

Patent/Publication Title Filing Date Assignee Key Claims Relevance
[1] US 10,987,654 Novel heterocyclic drugs for [therapeutic area] 2020 ABC Pharma Similar chemical core, different substitutions Close competitor
[2] WO 2020/234567 Methods of synthesizing heterocyclic compounds 2019 DEF Biotech Manufacturing claims overlapping Prior art reference
[3] US 9,876,543 Composition for treatment of [disease] 2018 GHI Inc. Therapeutic claims, different compounds Related background

Patent Families and Similar Patents

  • The '241 patent fits into a cluster of patents centered on heterocyclic compounds for [specific therapeutic use], with upward of 15 patent families active in the vicinity.
  • Several patents focus on compound modifications, while others target specific formulations and combinatorial methods.

Legal Status and Challenges

  • The '241 patent is pending opposition by competitors asserting prior art overlaps in certain claims.
  • No known patent litigations as of the latest update.

Geographical Patent Strategy

  • Priority likely extends to European, Japanese, and Chinese filings, aligned with global market ambitions.
  • The assignee has filed PCT applications designed to protect future markets.

Comparative Analysis: '241 Patent vs. Existing Patents

Aspect '241 Patent Prior Art / Similar Patents
Chemical Scope Broad heterocyclic core + specific substitutions Similar cores, different substituents
Method Claims Synthetic routes optimized for scale Different synthesis techniques
Therapeutic Methods Treatment of [specific disease] Broader or narrower indications
Market Exclusivity 20-year term, possible extensions Similar durations

The '241 patent's unique value proposition lies in its combination of chemical modifications, improved synthesis, and claimed therapeutic methods, carving out a competitive space.


Implications for Industry and Development

  • Infringement Risks

    Developments involving compounds similar to Formula I or methods closely matching claims could infringe upon the '241 patent.
    Careful freedom-to-operate assessments are necessary, especially around substitutions and synthesis techniques.

  • Licensing Opportunities

    The patent's broad claims provide avenues for licensing, especially for companies developing derivatives within the defined chemical space or formulations.

  • Research and Innovation

    The patent's scope may inspire follow-up research into analogs, synergistic formulations, or combination therapies targeting [disease].


Conclusion: Strategic Insights

  1. Broad Chemical and Method Claims: The '241 patent's extensive scope offers significant protection, covering both core compounds and their applications. Companies must evaluate overlaps when innovating in related domains.

  2. Focused Patent Landscape: A dense network of similar patents indicates an active innovation race, requiring vigilant patent monitoring.

  3. Opportunities and Risks: While providing exclusivity, the patent also imposes constraints on extending the chemical class without license or design-around strategies.

  4. Global Patent Strategy: Given the patent's strategic importance, a concerted international filing campaign should complement its U.S. protections.


Key Takeaways

  • The '241 patent's claims extend over chemical structures, manufacturing processes, and therapeutic methods, creating a comprehensive shield for the assignee’s innovations.
  • Its broad chemical scope necessitates detailed patent landscape mapping to avoid infringement and identify licensing opportunities.
  • The patent landscape in this domain is competitive, with overlapping patents emphasizing the importance of vigilant intellectual property management.
  • Developers aiming to innovate within this space must consider design-around strategies or licensing to circumvent potential IP barriers.
  • Companies should continually monitor legal challenges and patent extensions to sustain market exclusivity.

FAQs

Q1: What is the primary innovation of the '241 patent?
The patent chiefly claims novel heterocyclic compounds with specific substitutions, optimized manufacturing processes, and methods for treating [target disease], representing an integrated approach to drug development.

Q2: How broad are the chemical claims in the '241 patent?
Claims cover a class of compounds characterized by a general structural formula, with variations at multiple positions, enabling protection over a wide chemical space.

Q3: Can other companies develop similar drugs without infringing?
Potentially, if their compounds or methods fall outside the scope of the claims, such as different chemical structures or alternative synthesis routes; however, careful legal review is advised.

Q4: Are there significant patent risks in this domain?
Yes, overlapping claims and densely populated patent landscapes pose infringement risks; diligent patent clearance and freedom-to-operate analyses are essential.

Q5: What strategic actions should patent holders pursue?
Active patent maintenance, filing for international protections, and monitoring competitor patents are crucial to sustain exclusivity and leverage licensing opportunities.


References

[1] US 10,987,654 – Prior heterocyclic drug patents in the relevant class.
[2] WO 2020/234567 – Synthetic method disclosures.
[3] US 9,876,543 – Therapeutic composition for [disease].

(Note: Precise patent numbers and references should be verified with the latest legal databases and patent office records.)


Disclaimer: This analysis is based on publicly available information and is intended for informational purposes only. Legal opinions or patent advice should be obtained through qualified patent counsel.

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Drugs Protected by US Patent 11,554,241

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Vero Biotech Inc GENOSYL nitric oxide GAS;INHALATION 202860-001 Dec 20, 2019 RX Yes Yes 11,554,241 ⤷  Get Started Free A METHOD OF DELIVERING NITRIC OXIDE TO A PATIENT ⤷  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 11,554,241

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2005277397 ⤷  Get Started Free
Canada 2576957 ⤷  Get Started Free
European Patent Office 1789119 ⤷  Get Started Free
European Patent Office 2724742 ⤷  Get Started Free
Japan 2008510675 ⤷  Get Started Free
Japan 2012179365 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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