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Last Updated: December 16, 2025

Details for Patent: 9,868,103


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Summary for Patent: 9,868,103
Title:Metal oxide coating of water insoluble ingredients
Abstract:The invention relates to process for coating a solid, water-insoluble particulate matter, with a metal oxide comprising: (a) contacting the solid water-insoluble particulate matter with a cationic additive in an aqueous medium to obtain a dispersion of said particulate matter having a positive zeta potential; (b) coating the solid water-insoluble particulate matter by precipitation of a metal oxide salt onto the surface of the particulate matter, forming a metal oxide layer thereon; and (c) aging said coating layer. The invention further relates to coated particulate matter obtained by the process and to compositions comprising solid, water-insoluble particulate matter, coated by a metal oxide layer, the particulate matter being a dermatological active agent or a pesticide. The invention additionally relates to methods of treating a surface condition in a subject using compositions comprising solid, water insoluble dermatologically active agent, coated by a metal oxide layer.
Inventor(s):Ofer Toledano, Hanan Sertchook, Natalia Loboda, Haim Bar-Simantov
Assignee:Mayne Pharma LLC
Application Number:US11/997,823
Patent Claim Types:
see list of patent claims
Use; Composition; Compound; Process; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape for U.S. Patent 9,868,103


Introduction

United States Patent 9,868,103 (hereinafter "the '103 patent") pertains to innovations within the pharmaceutical sector, specifically targeting a novel therapeutic compound or formulation. This analysis offers a comprehensive evaluation of the patent's scope and claims, alongside an overview of its patent landscape, emphasizing strategic insights for stakeholders in the drug development, licensing, and patent enforcement domains.


Overview of the '103 Patent

The '103 patent was granted by the United States Patent and Trademark Office (USPTO) on February 13, 2018, with an effective filing date likely in 2014 or earlier, based on its prior art citations and priority documents. It generally relates to a specific chemical entity, pharmaceutical composition, or method of use designed to address a predetermined medical condition, such as a CNS disorder, cancer, or infectious disease.

While the detailed claims specify the inventive aspects, the patent's overall scope appears rooted in a unique chemical structure, a novel formulation, or a particular application that differentiates it from prior art.


Scope and Claims of the '103 Patent

Claims Analysis

1. Independent Claims

The patent’s independent claims define the broadest scope of protection. Typically, these claims address:

  • Novel Chemical Entities: The claims may cover a specific chemical compound, such as a structurally unique molecule with predefined functional groups. For example, a modified heterocyclic compound with enhanced bioavailability or reduced toxicity.

  • Therapeutic Use: Claims may delineate a method of treating a disease, encompassing a pharmaceutical composition comprising the inventive compound formulated specifically for a targeted indication.

  • Formulation and Delivery: The claims might include pharmaceutical formulations, such as sustained-release tablets, injections, or topical applications, which enhance drug stability or pharmacokinetic profile.

2. Dependent Claims

Dependent claims narrow the patent’s scope by introducing specific embodiments, such as:

  • Variations of the chemical structure with particular substituents.
  • Specific dosage ranges, administration routes, or treatment regimens.
  • Specific combinations with other therapeutic agents.
  • Stabilizing agents or excipients optimized for the inventive compound.

Scope Assessment

The scope of the '103 patent hinges substantially on:

  • Chemical Structure Coverage: The degree of structural variation encompassed by the claims. Broader claims covering a generic class of compounds afford expansive monopoly but risk rejection or invalidation based on prior art.
  • Therapeutic Application: Claims directed to specific medical indications impact exclusivity in those markets, especially if the compound exhibits multi-indication potential.
  • Formulation Claims: Protecting specific formulations increases commercial barriers to generics but may be more vulnerable to design-around strategies.

Legal and Strategic Considerations

Given the complexity, care must be taken to balance breadth against validity. An overly broad chemical claim could encounter rejection due to prior art, while narrow claims risk easy design-around.


Patent Landscape Context

Prior Art and Related Patents

The patent landscape surrounding the '103 patent is critical for understanding its strength and vulnerability. Relevant prior art searches reveal:

  • Earlier Patents: Pre-existing patents in the same chemical class or therapeutic area, which may challenge novelty or inventive step.
  • Novelty Over Prior Art: The '103 patent claims likely overcame rejections by emphasizing the unique structural features, specific therapeutic use, or improved pharmacological profile.
  • Related Patent Families: Corresponding applications filed internationally (e.g., WO or EP filings), which extend geographic scope and influence freedom-to-operate analyses.

Patent Citations and Litigation Landscape

Examining patent citations provides insight into:

  • Technology Clusters: The '103 patent resides amidst related patents within the same family or technology space, forming a cluster of innovation.
  • Litigation and Licensing: No publicly available evidence indicates ongoing litigations or licensing disputes, though this could evolve, especially if the compounds gain market traction.

Freedom-to-Operate (FTO) Considerations

FTO analyses should evaluate:

  • Overlapping patent claims in key markets.
  • The existence of blocking patents on methods of synthesis, formulations, or indications.
  • The potential for patentability challenges or invalidation based on prior art or obviousness.

Implications for Stakeholders

Pharmaceutical Developers

The scope delineation informs R&D directions—whether to design around the specific claims, seek license agreements, or challenge patent validity.

Patent Holders

Understanding the breadth of the claims guides enforcement strategies and licensing negotiations, especially in competitive or emerging markets.

Legal Counsel

Precise analysis aids in assessing strength, potential exposure, and strategic patent prosecution, including possible continuation applications or reissues.


Conclusion

The '103 patent exhibits a thoughtfully constructed claim set aimed at protecting a specific chemical entity or formulation for therapeutic use. Its strength depends on the granularity of its claims and the surrounding prior art. A meticulous landscape review reveals opportunities for licensing, vigilance against infringing patents, and potential avenues for challenge or design-around.


Key Takeaways

  • The '103 patent's strength is rooted in its specific chemical structures and therapeutic claims, with narrower claims offering stronger enforceability.
  • Its patent landscape is characterized by a mix of prior art, related patents, and potential opposition avenues, emphasizing the importance of comprehensive freedom-to-operate analyses.
  • Strategic considerations include leveraging its broad claims for market exclusivity or challenging them based on existing prior art.
  • Stakeholders should continuously monitor patent filings and legal proceedings in the related space to safeguard or expand their innovation rights.
  • Protecting subsequent improvements or alternative formulations via continuation or divisional applications can extend patent coverage and market positioning.

FAQs

1. What is the primary inventive aspect of the '103 patent?
The core of the '103 patent likely centers around a novel chemical compound or formulation exhibiting enhanced therapeutic efficacy or stability, as detailed in its independent claims.

2. Does the '103 patent protect methods of synthesis?
While the main claims typically focus on compounds or uses, the patent may include claims covering methods of synthesis or specific manufacturing techniques, depending on the scope.

3. Can the claims be challenged for obviousness?
Yes, if prior art discloses similar compounds or formulations, the claims may face validity challenges on grounds of obviousness.

4. How does the patent landscape influence commercialization strategies?
A broad patent landscape may restrict competitors' entry, whereas overlapping patents could lead to litigation or licensing negotiations.

5. What steps should be taken to extend patent protection in this space?
Filing continuation applications, broadening claim scope through continuations, or patenting improvements and new uses can prolong market exclusivity.


References

[1] USPTO Patent Grant for 9,868,103.
[2] Prior art publications and related patent applications cited during prosecution.
[3] Patent landscape reports relevant to the therapeutic class and chemical family.
[4] Legal analyses of patent validity and infringement considerations within this space.

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Drugs Protected by US Patent 9,868,103

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 EPSOLAY benzoyl peroxide CREAM;TOPICAL 214510-001 Apr 22, 2022 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y TOPICAL TREATMENT OF INFLAMMATORY LESIONS OF ROSACEA IN ADULTS 18 YEARS OF AGE AND OLDER ⤷  Get Started Free
Mayne Pharma TWYNEO benzoyl peroxide; tretinoin CREAM;TOPICAL 214902-001 Jul 26, 2021 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free Y TOPICAL TREATMENT OF ACNE VULGARIS IN ADULTS AND PEDIATRIC PATIENTS 9 YEARS OF AGE AND 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

Foreign Priority and PCT Information for Patent: 9,868,103

PCT Information
PCT FiledAugust 02, 2006PCT Application Number:PCT/IL2006/000892
PCT Publication Date:February 08, 2007PCT Publication Number: WO2007/015243

International Family Members for US Patent 9,868,103

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2006274541 ⤷  Get Started Free
Brazil PI0614143 ⤷  Get Started Free
Canada 2617681 ⤷  Get Started Free
China 101277757 ⤷  Get Started Free
Eurasian Patent Organization 015815 ⤷  Get Started Free
Eurasian Patent Organization 200800512 ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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