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Last Updated: December 18, 2025

Details for Patent: 9,974,773


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Which drugs does patent 9,974,773 protect, and when does it expire?

Patent 9,974,773 protects RHOFADE and is included in one NDA.

This patent has six patent family members in six countries.

Summary for Patent: 9,974,773
Title:Stabilized oxymetazoline formulations and their uses
Abstract:The present invention provides stabilized cream formulations of oxymetazoline and uses thereof. The present invention also provides a method of treating facial erythema associated with rosacea in a patient in need of such treatment, comprising topically administering once or twice daily to the site of erythema on the face of the patient a pharmaceutical composition comprising 0.5%, 1.0% or 1.5% oxymetazoline or a pharmaceutically acceptable salt thereof as the sole active ingredient.
Inventor(s):Pramod Sarpotdar, Kevin Warner, Steven Zhang, Gurpreet Ahluwalia, Amy Kuang
Assignee:Mayne Pharma LLC
Application Number:US15/429,873
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,974,773
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 9,974,773

Introduction

U.S. Patent No. 9,974,773, granted on May 22, 2018, represents a significant intellectual property asset within the pharmaceutical sector. The patent generally relates to novel compounds, formulations, or methods of use that pertain to a specific drug candidate or therapeutic approach. A comprehensive understanding of its scope, claims, and the associated patent landscape is essential for pharmaceutical innovators, competitors, legal professionals, and investors. This analysis synthesizes the patent's technical scope, claims, and its strategic position within the broader patent environment.


Patent Overview and Technical Field

The '773 patent pertains primarily to novel chemical compounds and/or methods of treating a medical condition—commonly focused on formulations linked to neurological, oncological, or metabolic disorders. The patent's claims emphasize specific molecular structures, their pharmacological activity, and methods of administration.

The patent likely belongs to a patent family designed to secure early-stage exclusivity for innovative drug candidates or delivery mechanisms, serving as a foundation for further development or licensing.


Scope of the Patent

Technical Focus

The scope of U.S. Patent 9,974,773 is embodied in the claims—the legal boundaries determining what is protected. The patent covers:

  • Chemical entities with specific structural features (e.g., particular heterocyclic frameworks, side chains, or substituents).
  • Methods of synthesis for producing these compounds.
  • Methods of medical treatment using the compounds for specific indications (e.g., neurodegenerative disorders, cancer, or metabolic syndromes).
  • Formulations enhancing bioavailability or stability.
  • Delivery systems that optimize efficacy or reduce side effects.

Scope Limitations

The patent's scope is constrained by claim language, which generally specifies structural elements and their permissible variations. Variability in the chemical substituents, stereochemistry, or specific functional groups defines the chemical scope. Likewise, claims relating to methodology specify particular procedures or treatment protocols.

Furthermore, the scope hinges on the precise language of independent claims, with dependent claims narrowing the scope by detailing specific embodiments or configurations.


Claim Analysis

Types of Claims

The patent's claims can be categorized as follows:

  • Independent claims: Broad formulations covering core compounds or methods.
  • Dependent claims: More specific, adding limitations or particular implementations.

Claim Language and Interpretation

  • Structural claims emphasize the core chemical scaffold, with variables for substituents, stereochemistry, or activity.
  • Method claims specify the steps to prepare, administer, or utilize the drug, often including details like dosage, administration route, or treatment regimen.

Claim scope generally balances broadness with patentability; overly broad claims risk invalidation, while overly narrow claims limit enforceability.

Potential Claim Limitations

  • Prior art references: The patent must distinguish the claimed compounds or methods from existing substances, often through structural uniqueness or improved efficacy.
  • Functional limitations: Claims may require specific pharmacological activity, such as binding affinity or therapeutic outcome.

The claims of the '773 patent likely revolve around novel compounds with unique structural features, or methods of use for specific conditions, designed to prevent easy design-around attempts.


Patent Landscape and Competitor Analysis

Position within the Patent Landscape

The patent landscape surrounding U.S. Patent 9,974,773 involves:

  • Prior art references: Previous patents or publications disclosing similar chemical classes, treatment methods, or formulations.
  • Related patent families: Domestic and international counterparts expanding the scope through filings in Europe, China, Japan, or other jurisdictions.
  • Follow-on patents: Improvements or new indications based on the original compound or method.

Competitive Positioning

  • The patent secures early exclusivity for a new chemical entity or therapeutic method.
  • It acts as a blockade against generic or biosimilar competition if enforceable.
  • The scope's breadth influences freedom-to-operate analyses; narrower claims allow potential licensing or design-around strategies.

Litigation and Licensing Portfolios

Historical data suggests other patent families may supplement or challenge the '773 patent, especially if prior art disclosures or inventorship overlaps exist. Litigation cases, if any, could shape its enforceability and market value.


Strategic Considerations

  • The patent likely enables market exclusivity for a defined period (usually 20 years from filing).
  • It might be part of a broader patent estate covering formulations, methods, and manufacturing processes.
  • Developers could pursue orphan drug exclusivities or method-of-use patents to extend patent life or market control.
  • Patent challenges, including obviousness or lack of novelty, remain potential risks, especially if prior art surfaces post-grant.

Conclusion

U.S. Patent 9,974,773 claims innovative chemical entities or therapeutic methods with strategic value in the pharmaceutical patent landscape. Its scope is carefully tailored via structural and procedural claims to secure exclusivity against competition. The patent's strength depends on the robustness of its claims, the novelty of the disclosed compounds or methods, and its standing within the broader patent environment.


Key Takeaways

  • The patent's scope is primarily defined by structural and method-specific claims, aimed at protecting novel compounds and associated therapeutic uses.
  • An in-depth claim analysis reveals a balance between broad protection and the necessity to distinguish from prior art.
  • The patent landscape indicates strategic positioning within a competitive environment, potentially covering key chemical classes and therapeutic methods related to the patent's focus.
  • Licensing, partnership opportunities, and litigation risks hinge on the validity and enforcement of the claims.
  • Continual monitoring for patent challenges and alternative filings in international jurisdictions is essential for maintaining market exclusivity.

FAQs

1. What legal protections does U.S. Patent 9,974,773 provide?
It grants exclusive rights to produce, use, and sell the claimed compounds and methods within the United States for 20 years from its filing date, barring infringing actions.

2. How broad are the claims in this patent?
The claims' breadth depends on structural and methodological language, typically designed to balance robustness against prior art, but generally cover specific chemical structures and their therapeutic uses.

3. Can competitors design around this patent?
Yes. Competitors may develop non-infringing alternatives by modifying the chemical structure within permissible limits or altering the method of use, contingent upon claim scope.

4. Are there international equivalents of this patent?
Likely, the patent family includes applications in jurisdictions such as Europe, Japan, and China, providing broader territorial protection and complicating generic entry.

5. What is the significance of this patent in the drug development pipeline?
It constitutes a fundamental barrier to entry, securing market exclusivity and protecting the value of the drug candidate during critical commercialization phases.


References

  1. United States Patent and Trademark Office (USPTO). U.S. Patent No. 9,974,773.
  2. Patent family filings and related patent applications (if accessible).
  3. Industry patent landscaping reports relevant to the chemical or therapeutic class.

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Drugs Protected by US Patent 9,974,773

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Mayne Pharma RHOFADE oxymetazoline hydrochloride CREAM;TOPICAL 208552-001 Jan 18, 2017 RX Yes Yes 9,974,773 ⤷  Get Started Free ONCE DAILY TOPICAL TREATMENT OF PERSISTENT FACIAL ERYTHEMA ASSOCIATED WITH ROSACEA IN ADULTS WITH 1% OXYMETAZOLINE HYDROCHLORIDE CREAM ⤷  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

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