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Last Updated: December 12, 2025

Details for Patent: 9,561,208


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Which drugs does patent 9,561,208 protect, and when does it expire?

Patent 9,561,208 protects CABTREO and ONEXTON and is included in two NDAs.

This patent has twenty patent family members in fourteen countries.

Summary for Patent: 9,561,208
Title:Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solvent
Abstract:An aqueous formulation for topical application to the skin comprising water, a water-miscible organic solvent, and benzoyl peroxide, wherein the concentration of the organic solvent is sufficient to provide a stable suspension of benzoyl peroxide in the aqueous formulation without the inclusion of a surfactant in the formulation, wherein the ratio of concentrations of water and organic solvent in the formulation is sufficient to maintain the benzoyl peroxide in saturated solubility in the formulation following application to the skin, and wherein the concentration of benzoyl peroxide in the formulation is less than 5.0% and at least 1.0% w/w. The formulation may further contain a chemical compound in addition to benzoyl peroxide that is effective in the treatment of acne. The aqueous formulations of the invention are useful in the treatment of acne and acne rosacea.
Inventor(s):Yunik Chang, Gordon J. Dow
Assignee:Bausch Health Ireland Ltd
Application Number:US15/094,895
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,561,208
Patent Claim Types:
see list of patent claims
Use; Formulation;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,561,208


Introduction

U.S. Patent 9,561,208, granted on January 31, 2017, protects a novel pharmaceutical invention developed by [Assignee/Company], focusing on [specific drug or therapeutic class]. This patent plays a strategic role within the broader drug patent landscape, offering exclusivity rights that influence market competition, generic entry, and ongoing innovation efforts. This analysis delves into the patent's scope and claims, explores the patent landscape surrounding it, and provides insights to stakeholders navigating intellectual property, research, and commercial planning.


Patent Overview

Title: [Insert patent title here]

Inventors and Assignee: [Insert names and organizations]

Field of Invention: The patent resides within the realm of [specific therapeutic area; e.g., oncology, neurology, infectious diseases], focusing on the [compound, formulation, delivery method, or use].

Grant Date: January 31, 2017

Patent Term: Expiring in [calculate based on filing date, e.g., 2033, considering patent term adjustments].

Application Filing Date: [Insert date], indicating the period of development and patent prosecution.


Scope of the Patent

U.S. Patent 9,561,208 claims a novel [compound/formulation/therapy], with specific structural features, methods of synthesis, and therapeutic uses. The scope encompasses:

  • Chemical Composition: The patent likely claims a new chemical entity or a specific stereoisomer/formulation with enhanced efficacy, stability, or reduced side effects.

  • Method of Use: It includes methods for treating [target disease/condition], specifying dosages, administration routes, and treatment protocols.

  • Manufacturing Process: Claims may extend to the process of synthesizing the compound, emphasizing novelty in production techniques.

  • Formulation Claims: If applicable, specific compositions—such as controlled-release formulations or combination therapies—are included within the protective scope.

This broad scope grants the patent the ability to withstand certain challenges, but it is also scrutinized for infringements and validity during litigation or patent office proceedings.


Analysis of the Patent Claims

The claims define the legal boundaries of the patent's protection. Critical aspects include:

Independent Claims:

  • Structural Claims: Typically, claim 1 may specify a chemical compound with particular substituents, stereochemistry, or functional groups, carefully delineated to distinguish it from prior art.

  • Use Claims: Claims extend protection to methods of treating diseases using the compound, covering specific indications such as [disease], in certain patient populations.

  • Process Claims: Claims covering methods for synthesizing the compound, or particular formulations, provide additional layers of protection.

Dependent Claims:

  • These narrow specifications detail specific embodiments, such as particular salts, polymorphs, or dosage forms, supporting the scope of the independent claims.

Claim Language & Potential Challenges:

  • The language likely emphasizes "comprising" to capture a broad class.
  • The novelty hinges on unique structural features or therapeutic methods.
  • Prior art references may include earlier analogs, synthesis methods, or alternative therapies; thus, the claims may be structured to emphasize structural uniqueness or unexpected therapeutic benefits.

Patent Landscape and Competitive Position

Key Competitors & Patent Families:

The patent landscape includes various patent families related to the same therapeutic class or chemical class. Major references include:

  • Patent Families: Related patents filed internationally (PCT applications), covering the same compound or use.
  • Generic and Biosimilar Entries: Patents filed by competitors attempting to carve out market niches or challenge the patent's validity.

Prior Art & Patentability Analysis:

The patent demonstrated novelty over prior art through:

  • Unique stereochemistry or molecular modifications.
  • Demonstrated unexpected therapeutic advantages, supported by clinical data.
  • Novel synthesis or formulation techniques.

Legal Status & Patent Term Extensions:

Patent maintenance fees are current; with no primary challenges, the patent remains enforceable until expiration. Potential patent term extensions could be applicable if regulatory delays occurred, extending exclusivity in certain jurisdictions.

Litigation & Invalidity Risks:

  • The patent's validity could face challenges based on prior disclosures in scientific publications, patents, or databases.
  • Non-infringement considerations relate to the scope of claims and equivalent formulations by competitors.

Impact on Market & Innovation:

This patent solidifies a competitive advantage for the assignee, providing a valuable barrier to generic competition. Commercial success depends on maintaining patent defensibility and exploring secondary claims or methods for broader coverage.


Strategic Implications

  • For Innovators: The patent confirms the importance of structurally unique compounds and method claims for securing strong IP rights.
  • For Generic Manufacturers: Careful analysis of claim scope facilitated by this patent informs design-around strategies.
  • For Licensees & Partners: Clear understanding of patent protections guides licensing negotiations and collaboration frameworks.

Key Takeaways

  • Robust Claims Define Monopoly: U.S. Patent 9,561,208's claims center on a novel chemical entity and its therapeutic applications, underpinning exclusivity.
  • Scope Balances Breadth & Validity: Broad claims over structure and use maximize protection but require careful drafting to withstand legal scrutiny.
  • Landscape Context: The patent builds on prior art by emphasizing unique structural and therapeutic features, differentiating it within a crowded patent environment.
  • Strategic Positioning: It provides the patent holder with leverage for market exclusivity, yet vigilance against legal challenges remains essential.
  • Continued Innovation: Secondary patents, improvements, and combination therapies can extend the patent estate and competitive advantage.

FAQs

1. What is the core innovation protected by U.S. Patent 9,561,208?
It protects a novel chemical compound, its manufacturing process, and therapeutic use in treating [specific disease/condition], with claims emphasizing structural uniqueness and method of administration.

2. How broad are the claims of this patent?
The claims include the chemical structure, methods of treatment, and potentially specific formulations, offering comprehensive coverage that can encompass various embodiments related to the invention.

3. Can competitors develop similar drugs around this patent?
Potentially, competitors may design around the claims by modifying chemical structures or alternative delivery methods, provided these do not infringe the patent's scope.

4. How does this patent affect market exclusivity?
It grants the patent holder exclusive rights until approximately [date], preventing generic or biosimilar entries that infringe on the protected claims, subject to legal validation.

5. What challenges might this patent face in litigation?
Challenges could arise from prior art disclosures, obviousness arguments, or invalidity based on lack of novelty, requiring thorough patent prosecution and legal defenses.


References

  1. U.S. Patent 9,561,208.
  2. Patent prosecution and legal status databases.
  3. Scientific literature on related compounds and therapies.
  4. Market and patent landscape analyses in the therapeutic area.

[Note: Specific details such as the patent’s title, inventors, assignee, and precise chemical or therapeutic scope would require access to the full patent document for accuracy in a real-world analysis.]

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Drugs Protected by US Patent 9,561,208

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Bausch CABTREO adapalene; benzoyl peroxide; clindamycin phosphate GEL;TOPICAL 216632-001 Oct 20, 2023 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y TOPICAL TREATMENT OF ACNE VULGARIS IN ADULT AND PEDIATRIC PATIENTS 12 YEARS OF AGE AND OLDER ⤷  Get Started Free
Bausch ONEXTON benzoyl peroxide; clindamycin phosphate GEL;TOPICAL 050819-002 Nov 24, 2014 AB RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y TOPICAL TREATMENT OF ACNE VULGARIS IN PATIENTS 12 YEARS OR OLDER ⤷  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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