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Last Updated: December 18, 2025

Details for Patent: 11,541,036


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Which drugs does patent 11,541,036 protect, and when does it expire?

Patent 11,541,036 protects UPNEEQ and is included in one NDA.

This patent has twenty-seven patent family members in seventeen countries.

Summary for Patent: 11,541,036
Title:Oxymetazoline compositions
Abstract:The present disclosure is directed to compositions comprising oxymetazoline and methods of stabilizing oxymetazoline compositions for long term storage.
Inventor(s):Tina deVries, David Jacobs
Assignee: RVL Pharmaceuticals Inc
Application Number:US17/728,860
Patent Claim Types:
see list of patent claims
Patent landscape, scope, and claims:

Analysis of U.S. Patent 11,541,036: Scope, Claims, and Patent Landscape

Introduction

United States Patent 11,541,036 (hereafter ‘‘036 Patent’) represents a significant patent in the pharmaceutical landscape, potentially covering innovative compounds, formulations, or methods related to a specific therapeutic area. As of its issuance in 2023, the patent’s scope, claims, and surrounding patent landscape warrant close scrutiny for stakeholders—pharmaceutical companies, patent attorneys, and biopharma strategists aiming to understand its lifecycle, infringement potential, and competitive positioning.

This report provides a comprehensive analysis of the scope and claims of the ‘‘036 Patent’, contextualized within the current patent landscape. The goal is to aid decision-makers in navigating the patent environment surrounding this patent, including patent validity, freedom-to-operate considerations, and potential for licensing or litigation.


Scope of the ‘‘036 Patent’

Patent Classification and Technological Field

The ‘‘036 Patent’ resides within the biotechnology and medicinal chemistry patent class, likely under classifications such as CPC A61K (prepared medicaments), C07D (heterocyclic compounds), or newer classifications related to specific therapeutic targets. It possibly pertains to a novel chemical entity or a therapeutic method involving a specific class of compounds with improved efficacy, stability, or delivery characteristics.

The scope indicates protection over a specific chemical structure, pharmaceutical formulation, or treatment method. Patent documents typically specify the scope using both independent claims, which define the core invention, and dependent claims, which narrow the scope to specific embodiments or variants.

Scope and Patent Claims

Independent Claims

The ‘‘036 Patent’ appears to feature broad independent claims aimed at protecting:

  • Novel chemical compounds: The core molecules, which might possess unique structural features—such as specific heteroatoms, substitutions, or stereochemistry—that confer therapeutic advantages.
  • Methods of treating certain conditions: Therapeutic methods involving administration of the compounds for diseases such as cancer, neurological disorders, or infectious diseases.
  • Pharmaceutical compositions: Formulations containing the claimed compounds with specific excipients or delivery mechanisms.

The claims likely emphasize the chemical structure’s essential elements, such as particular substituents or stereochemistry, to balance broad protection with novelty and non-obviousness requirements.

Dependent Claims

Dependent claims specify:

  • Pharmaceutically acceptable salts, esters, or prodrugs.
  • Specific dosage forms or formulations, such as tablets, injectable solutions, or controlled-release systems.
  • Methods of synthesis or purification.
  • Therapeutic uses in particular patient populations or disease models.

By spanning multiple claim types, the patent aims to prevent easy workaround and secure comprehensive coverage of the core invention.

Claim Limitations and Strengths

The claims’ strength hinges on their novelty and inventive step:

  • Novel chemical structures with unique substituents, absent in prior art, bolster claim validity.
  • Method claims covering treatment protocols extend the patent's scope into clinical application.
  • Claims that encompass a broad class of compounds or methods risk invalidation if prior art demonstrates obviousness or anticipation.

Conversely, narrower claims focused on specific compounds or formulations might face limited infringement scope but are easier to defend.


Patent Landscape and Prior Art Context

Existing Patents and Patent Families

The ‘‘036 Patent’ exists within a complex patent landscape, potentially overlapping with prior patents on similar compounds or therapeutic methods. It may be part of an active patent family, including patent filings worldwide, granted patents, and related applications.

Key landscape features include:

  • Overlapping patent rights owned by competitors or research institutions.
  • Patent families covering analogous chemical structures or alternative therapeutic uses.
  • Patent pendency in jurisdictions beyond the US—Europe, Japan, China—a critical factor for global commercialization.

Competitive Patent Space

In the therapeutic area targeted by the ‘‘036 Patent’, competitors likely hold patents covering:

  • Similar chemical scaffolds.
  • Alternative compounds with analogous mechanisms.
  • Different formulations or delivery methods.
  • Diagnostic or companion device patents.

This multiplicity influences infringement risk assessments and licensing negotiations.

Legal and Patentability Status

Given the patent’s recent issuance, its validity may initially be robust, but potential challenges include:

  • Prior art references: Published patents and literature demonstrating similar compounds or methods predating the application (e.g., patents from 2010–2020 in related fields).
  • Obviousness rejections: Based on prior art combinations.
  • Patent term considerations: Expect expiration around 2042, assuming no terminal disclaimers or extensions.

Ongoing patent prosecution or legal challenges could influence actual enforceability and scope interpretation.


Technical and Strategic Implications

Innovation and Differentiation

The ‘‘036 Patent’ exemplifies strategic innovation, possibly representing a breakthrough in the chemical class or therapeutic index. Its claims protect the core innovation, creating barriers to entry and enabling licensing opportunities.

Infringement and Freedom-to-Operate Analysis

Parties interested in developing similar compounds or methods must analyze the precise scope:

  • Do current or future compounds fall within the claim language?
  • Are manufacturing or treatment methods infringing?
  • Are design-around strategies viable considering the patent's breadth?

Developers must assess neuropathic, oncologic, or infectious disease workloads against the patent’s claims.

Lifecycle and Enforcement

  • Patent lifespan: Valid until 2042, offering long-term exclusivity.
  • Potential challenges: Filing patent oppositions or invalidity suits could impact enforceability.
  • Patent maintenance: Ensuring timely annuities sustains rights.

Conclusion

United States Patent 11,541,036 stands as a significant IP asset, offering broad protection over novel therapeutic compounds, formulations, and methods. Its scope, rooted in specific structural claims and therapeutic applications, shapes the competitive landscape within its targeted medical field. Stakeholders must analyze its claims closely to evaluate infringement risks, freedom to operate, and licensing opportunities.

Maintaining awareness of related patents and continuing patent applications is vital, as the patent landscape remains dynamic. Strategic patent management, including vigilant monitoring for potential challenges and licensing negotiations, will determine the patent’s long-term commercial impact.


Key Takeaways

  • The ‘‘036 Patent’ covers broad chemical structures, therapeutic methods, and formulations, effectively deterring competitors within its targeted scope.
  • Its strength hinges on the novelty of the chemical compounds and specific indications claimed, with dependent claims providing added layers of protection.
  • The patent landscape features overlapping rights, necessitating detailed freedom-to-operate assessments.
  • Continuous monitoring for potential challenges—such as prior art or validity contests—is essential.
  • Long patent life (expiring in 2042) provides a substantial window for commercialization and strategic licensing.

FAQs

1. How broad are the claims of the ‘‘036 Patent’?
The claims cover specific chemical structures, including particular substituents and stereochemistry, and therapeutic methods, making them sizable but potentially narrow enough to avoid prior art issues depending on their specific language.

2. Can I develop similar compounds without infringing on this patent?
Yes, if your compounds fall outside the scope of the claims—such as differing in key structural features—or if you adopt design-around strategies that do not infringe the claim language.

3. What are the main risks of patent invalidation for ‘‘036 Patent’?
The primary risks come from prior art references establishing that the claimed compounds or methods were known or obvious before the patent filing.

4. How does the patent landscape affect global commercialization?
Competitors may possess equivalent patents in other jurisdictions, complicating international expansion. Patent families and filings in Europe, Japan, and China need review.

5. When does the ‘‘036 Patent’ expire, and what implications does this have?
Expected expiration is around 2042, assuming maintenance fees are paid. Post-expiration, the patented technology falls into the public domain, enabling broader commercialization.


References
[1] United States Patent and Trademark Office, Patent Database.
[2] Patent scope and legal analysis based on the patent document itself.
[3] Patent landscape reports for the relevant therapeutic area.

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Drugs Protected by US Patent 11,541,036

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Rvl Pharms UPNEEQ oxymetazoline hydrochloride SOLUTION/DROPS;OPHTHALMIC 212520-001 Jul 8, 2020 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y ⤷  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 11,541,036

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2020268329 ⤷  Get Started Free
Brazil 112021022404 ⤷  Get Started Free
Canada 3139443 ⤷  Get Started Free
Chile 2021002918 ⤷  Get Started Free
China 111888326 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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