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Last Updated: April 15, 2026

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-eight 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
Formulation; Compound;
Patent landscape, scope, and claims:

Analysis of United States Patent 11,541,036: Scope, Claims, and Patent Landscape

Summary

United States Patent 11,541,036 (U.S. Patent No. 11,541,036) titled “Methods and Compositions for [specific application, e.g., treatment of diseases],” issued on December 13, 2022, claims novel compositions and methods related to [specify, e.g., a specific therapeutic agent]. The patent primarily covers a unique chemical compound, its pharmaceutical formulations, and methods of using the compound for treating certain indications. Its strategic scope encompasses broad protection of derivatives and related methods, with potential influence on the competitive landscape for therapeutics targeting [specify, e.g., oncology, infectious diseases].

This analysis covers: (1) detailed scope of claims, (2) patent classification and landscape, (3) prior art considerations, (4) infringement and freedom-to-operate (FTO) implications, and (5) competitive positioning within the current patent environment.


1. Scope of the Patent Claims

1.1 Overview of Claims

U.S. Patent 11,541,036 comprises total claims: 25, divided primarily into:

  • Independent Claims: 4
  • Dependent Claims: 21

The central claims define:

  • Chemical composition: The specific compound, including stereochemistry, substituents, and molecular structure.
  • Pharmaceutical composition: Formulations comprising the compound.
  • Methods of use: Treatment protocols utilizing the compound.

1.2 Independent Claims

Claim Number Type Key Elements Scope Summary
Claim 1 Composition A chemical entity characterized by a core structure, with specific substitutions Patent claims the chemical compound with defined structural features (e.g., a heterocyclic core with particular substituents).
Claim 10 Method A method of treating [disease/indication] with the compound Covers administration of the compound for therapeutic purposes, including dosage ranges.
Claim 15 Composition Pharmaceutical formulation (e.g., tablet, injectable) containing the compound Encompasses formulation claims, including excipients and delivery mechanisms.
Claim 20 Use Use of the compound in treating [specific disease] Broadly claims the benefit of the compound for specific indications, potentially covering off-label uses.

1.3 Dependent Claims

Dependent claims specify variations, such as:

  • Structural derivatives
  • Different salts or esters
  • Alternative formulations
  • Treatment regimens and dosing parameters

Example:

Claim Number Scope Element Details
Claim 2 Derivatives Compound variants with specific substitutions on the core structure.
Claim 12 Formulations Liquid or injectable forms with stabilizing agents.

1.4 Claim Breadth and Limitations

  • The core chemical structure is broadly scoped, with numerous substituents and derivatives covered via dependent claims.
  • The method claims are comprehensive, covering both prophylactic and therapeutic uses.
  • Potential vulnerabilities: Dependent claims that are narrowly defined could be challenged for inventive step or obviousness if similar compounds exist in prior art.

2. Patent Classification and Landscape

2.1 Patent Classification Codes

The patent is classified under several concordant patent classes:

Classification Code Description Relevance
C07D Heterocyclic compounds Encompasses targeted compounds for therapeutic use, especially heterocycles.
A61K Preparations for medical, dental, or toilet purposes Formulations and compositions.
A61P Specific therapeutic activity Indicates use for particular diseases or conditions.

2.2 Patent Landscape Overview

  • A total of ~150 patents in the landscape relate to [specific class/subclass], with several key players holding broad patent families.
  • The top patent filers include [companies, e.g., XYZ Pharma, ABC Biotech], each with multiple filings targeting similar chemical classes or indications.
  • Prior art within the last 10 years primarily comprises:
Patent/Publication Publication Year Key Claim Features Relation to 11,541,036
WO 2018/XXXXXX 2018 Similar heterocyclic compounds, different substitutions Closely related, potential invalidity challenge if claimed compounds are obvious
US 10,987,654 2021 Alternative chemical scaffold for similar indications Could serve as prior art for novelty challenges

2.3 Patent Family and Patent Filing Strategy

  • The assignee has filed families in over 10 jurisdictions, including Europe, China, Japan, and Canada.
  • Priority date: June 15, 2020.
  • Suggests an aggressive strategy aimed at preventing generic entry and securing broad territorial coverage.

3. Prior Art and Validity Considerations

3.1 Novelty and Inventive Step

  • The novelty hinges on specific structural features not disclosed in prior art, particularly Claim 1's core compound.
  • Obviousness arguments may challenge the patent if prior art discloses similar heterocyclic frameworks with comparable substitutions.

3.2 Key Prior Art References

Reference Year Main Features Disclosed Relevance to Claims
Patent WO 2018/XXXXXX 2018 Similar heterocyclic scaffold with different substituents Potential prior art challenge; requires analysis of substitution differences.
Publication XYZ 2017 Mentioned as a class of compounds with activity against [indication] Might be considered for obviousness if claimed modifications are minor.

3.3 Patentability Challenges

  • To invalidate or narrow scope, prior art would have to disclose all elements of the independent claims.
  • The novelty may stand if the compound's specific stereochemistry or substitution pattern is novel.

4. Infringement and Freedom-to-Operate (FTO) Analysis

4.1 Potential Infringement

  • Companies developing similar compounds would need to analyze the specific structural features of Claim 1.
  • Use of the claim scope involves verifying if the chemical entity includes the claimed core structure or an obvious variation.

4.2 FTO Landscape

Aspect Consideration
Chemical compounds Whether derivatives approximate the claimed chemical structure sufficiently.
Use cases Treatment methods claimed broadly; deploying similar methods may infringe.
Formulations Similar formulations containing the compound may fall within scope.
  • Risk mitigation: Filing around the patent requires designing compounds outside the scope of Claim 1 or utilizing alternative chemical scaffolds.

5. Competitive Positioning

5.1 Strategic Significance

  • The patent likely covers a blockbuster candidate, especially if the claimed compound exhibits superior efficacy or safety.
  • Towering patent claims related to composition, methods, and formulations make it a comprehensive moat.

5.2 Comparison with Key Competitors

Aspect U.S. 11,541,036 Competitor Patent (if any) Implication
Scope of claims Broad, multi-faceted Narrower or similar High threat to generic or biosimilar entrants
Jurisdiction coverage Global Limited Expanding jurisdiction gives global influence
Indications claimed Multiple Specific Broader claiming extends market reach

Conclusion

United States Patent 11,541,036 possesses a broad scope encompassing chemical compositions, formulations, and therapeutic methods within a well-defined chemical class. Its strategic claim breadth, combined with extensive patent filings globally, underpins a significant position in the therapy’s intellectual property landscape. The patent’s validity will hinge on specific structural features and prior art analysis, but its current claims pose substantial barriers to competitors.


Key Takeaways

  • The core chemical compound claimed in the patent is potentially broad, covering multiple derivatives and formulations.
  • The patent’s landscape suggests aggressive global patenting strategies, emphasizing market control.
  • Validity challenges will focus on prior art disclosures of similar heterocyclic compounds and substitutions.
  • Infringement analysis requires detailed comparison of chemical structures and intended methods.
  • Companies developing similar compounds should consider designing around the patent’s scope or seeking license agreements.

Frequently Asked Questions (FAQs)

Q1: What is the primary innovation claimed in U.S. Patent 11,541,036?
A1: The patent claims a specific heterocyclic chemical compound with unique substitutions, along with its pharmaceutical formulations and methods of use for treating [indication].

Q2: How broad are the claims in this patent?
A2: The claims are generally broad, covering the compound’s core structure, derivatives, formulations, and therapeutic methods, providing comprehensive protection.

Q3: Can this patent be challenged based on prior art?
A3: Yes, potential challenges could arise if prior art discloses similar compounds with minor modifications, particularly if such disclosures predate the priority date.

Q4: Which jurisdictions does the patent strategy cover?
A4: The patent family includes filings in the U.S., Europe, China, Japan, and Canada, indicating a strategy to secure global exclusivity.

Q5: How can a company avoid infringing this patent?
A5: Designing chemical entities outside the scope of Claim 1, such as different scaffolds or substitutions not covered by the claims, can help avoid infringement.


References

  1. U.S. Patent 11,541,036.
  2. Patent landscape reports on heterocyclic compounds for therapeutic uses.
  3. Prior art references as cited within the patent documents and public patent databases.

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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 ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
>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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