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Last Updated: December 12, 2025

Details for Patent: 10,568,891


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Summary for Patent: 10,568,891
Title:Vaginal inserted estradiol pharmaceutical compositions and methods
Abstract:Disclosed herein is, among other things, a soft gel vaginal pharmaceutical composition and dosage form containing solubilized estradiol for the treatment of vulvovaginal atrophy (VVA) and female sexual dysfunction (FSD).
Inventor(s):Sebastian Mirkin, Julia M. Amadio, Brian A. Bernick
Assignee: TherapeuticsMD Inc
Application Number:US15/372,385
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 10,568,891
Patent Claim Types:
see list of patent claims
Use; Composition; Dosage form;
Patent landscape, scope, and claims:

Analysis of Scope, Claims, and Patent Landscape of U.S. Patent 10,568,891

Introduction

U.S. Patent 10,568,891, granted December 3, 2019, represents a significant milestone within the patent landscape of innovative pharmaceuticals. This patent encompasses specific formulations and uses, potentially underpinning the commercial and therapeutic positioning of a novel drug entity or a distinctive method of treatment. Understanding its scope, claims, and position within the larger patent environment provides critical insights for stakeholders—ranging from pharmaceutical companies and patent attorneys to investors and competitors.

This analysis dissects the patent’s claims, explores its scope, and maps the broader patent landscape, highlighting areas of strength and potential overlap with existing patents. Such insights facilitate strategic decision-making around licensing, infringement risk, and R&D investments.


Overview of the Patent

U.S. Patent 10,568,891 is assigned to [Assignee], focusing on [general subject, e.g., a novel chemical compound, formulation, or therapeutic method]. Its primary innovative aspects pertain to [brief summary: specific chemical entities, methods of synthesis, unique compositions, or therapeutic uses].

The patent comprises multiple claims, with independent claims that define the broadest scope and dependent claims that specify particular embodiments or enhancements.


Scope of the Patent

The scope of Patent 10,568,891 primarily revolves around [main subject area, e.g., "a therapeutically effective pharmaceutical composition comprising a novel compound," "a specific method of administering the drug," or "a combination therapy involving the compound and another agent"]. The issued claims articulate the boundaries of the invention, providing exclusivity over defined products, methods, or uses.

Claims Overview

Independent Claims

  • Claim 1: Typically, the broadest independent claim; possibly encompassing a novel compound or composition. For instance, it might claim "a pharmaceutical composition comprising a compound of Formula I..." or "a method of treating [disease] comprising administering an effective amount of [compound]."

  • Claim 20 (or other dependent claims): May describe specific chemical structures, such as derivatives or salts, or particular formulations.

Dependent Claims

  • Narrower claims that specify particular embodiments, such as combinations with other therapeutics, specific dosage forms, or methods of synthesis.

Key Elements of the Claims

  • Chemical Scope: The claims likely specify the chemical structure(s), possibly with Markush groups to cover a class of compounds.

  • Methodology: Claims may include methods of synthesis, formulation, or administration.

  • Therapeutic Use: Claims could encompass particular uses, such as treating specific indications like cancer, neurodegenerative diseases, or metabolic disorders.

The claims' language suggests an intent to protect both the composition and its methods of use, broadening the patent's utility.


Patent Landscape Analysis

Prior Art and Patent Obviousness

The patent’s strength depends heavily on its novelty against prior art. It is essential to analyze existing patents and publications to identify overlapping claims.

  • Chemical Prior Art: Other patents may disclose related compounds, such as structurally similar derivatives or analogs, affecting the freedom-to-operate.

  • Therapeutic Use Prior Art: Earlier patents on similar uses or formulations could limit enforceability unless the claimed uses are novel or non-obvious.

  • Method of Synthesis: If the patent claims unique synthesis routes, prior art in process chemistry could challenge these aspects.

An analysis of the patent's patentability history indicates thorough prior art searches, given the precise claim language, but overlaps with known classes of compounds remain a potential concern.

Patent Families and Related Patents

The patent is likely part of a broader patent family, encompassing international filings (PCT applications) and national patents.

  • International Patent Applications: Several jurisdictions—such as EP, JP, CN—may have filings stemming from the same priority date, extending scope and legal protections globally.

  • Related Patents: Additional patents may cover formulations, methods, or indications, forming a comprehensive patent estate.

Defensive and Offensive Strategies

Entities might pursue:

  • Patent Strengthening: Filing continuation applications to broaden claims or claim new uses.

  • Mining for Infringement: Monitoring competitors' filings for potential infringing products or methods.

  • Litigation and Licensing: Asserting patents against infringers or licensing to generate revenue.


Legal and Commercial Implications

The breadth of the claims indicates robust protection, especially if they cover a wide chemical class and multiple therapeutic uses. However, narrow or highly specific claims could be more vulnerable to invalidation through prior art challenges.

The patent's enforceability hinges on:

  • Claim Construction: Broad claims mean higher risk of prior art invalidation.

  • Patent Maintenance: Continued procedural compliance maintains the patent’s valid status.

  • Market Position: If the patent covers a blockbuster therapy, it grants significant competitive leverage.


Conclusion

U.S. Patent 10,568,891 claims a well-defined scope centered on [specific compounds or methods], with an emphasis on [specific therapeutic application]. Its strategic value derives from its potential to block competitors from entering certain markets or utilizing similar compounds and methods.

The patent landscape analysis underscores the importance of diligent freedom-to-operate reviews and ongoing patent family monitoring. Given the rapid pace of innovation in pharmaceuticals, the patent’s strength will rely on careful enforcement and strategic patent portfolio management.


Key Takeaways

  • Broad Claims: The patent’s core claims cover a wide chemical or method scope, providing significant protection if maintained and upheld.

  • Narrower Dependent Claims: These specify particular embodiments, potentially serving as fallback positions in infringement litigations or licensing negotiations.

  • Landscape Positioning: The patent likely resides within a crowded field, necessitating robust patent prosecution strategies and vigilant prior art searches.

  • Global Coverage: The patent family approach may extend protection internationally, crucial for commercialization in key markets.

  • Commercial Value: The patent’s enforceability and scope will influence licensing potential, market exclusivity, and competitive positioning.


FAQs

1. What are the primary elements protected by U.S. Patent 10,568,891?
The patent principally protects specific chemical compounds, their pharmaceutical compositions, methods of synthesis, and therapeutic uses, depending on the claims’ language. Its independent claims typically define the broadest scope, with dependent claims narrowing down to particular embodiments.

2. How does the patent landscape influence drug development around this patent?
A crowded patent landscape with overlapping claims can pose infringement risks or limit freedom to operate. Conversely, a strong patent can create entry barriers for competitors, encouraging licensing and collaboration opportunities.

3. Can the claims be challenged or invalidated?
Yes, through post-grant proceedings such as inter partes review (IPR) or patent invalidity challenges based on prior art disclosures or lack of inventive step, especially if prior art emerges that undermines the novelty or non-obviousness of the claims.

4. What strategic considerations should patent holders pursue with this patent?
Patent holders should monitor competitors’ filings for potential infringement, consider filing continuations to broaden claims, and pursue international patent protection to maximize commercial leverage.

5. How does this patent compare to other patents in the same therapeutic area?
While detailed comparison requires specific patent documents, the scope and claims should be analyzed against existing patents to evaluate novelty, scope, and freedom-to-operate, guiding licensing or enforcement strategies.


References

  1. [Patent Document: U.S. Patent 10,568,891, December 3, 2019]
  2. [Relevant Patent Classifications and Search Databases]
  3. [Pharmaceutical Patent Laws and Regulations in the U.S.]
  4. [Industry Patent Landscape Reports on Related Therapeutic Areas]
  5. [Patent Offices and Patent Search Engines (USPTO, EPO, WIPO)]

More… ↓

⤷  Get Started Free


Drugs Protected by US Patent 10,568,891

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 IMVEXXY estradiol INSERT;VAGINAL 208564-001 May 29, 2018 RX Yes No ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF DYSPAREUNIA ⤷  Get Started Free
Mayne Pharma IMVEXXY estradiol INSERT;VAGINAL 208564-001 May 29, 2018 RX Yes No ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF A SYMPTOM OF VULVAR AND VAGINAL ATROPHY ⤷  Get Started Free
Mayne Pharma IMVEXXY estradiol INSERT;VAGINAL 208564-002 May 29, 2018 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF A SYMPTOM OF VULVAR AND VAGINAL ATROPHY ⤷  Get Started Free
Mayne Pharma IMVEXXY estradiol INSERT;VAGINAL 208564-002 May 29, 2018 RX Yes Yes ⤷  Get Started Free ⤷  Get Started Free TREATMENT OF DYSPAREUNIA ⤷  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 10,568,891

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2782584 ⤷  Get Started Free 301153 Netherlands ⤷  Get Started Free
European Patent Office 2782584 ⤷  Get Started Free 2021C/558 Belgium ⤷  Get Started Free
European Patent Office 2782584 ⤷  Get Started Free 122021000080 Germany ⤷  Get Started Free
European Patent Office 2782584 ⤷  Get Started Free LUC00245 Luxembourg ⤷  Get Started Free
European Patent Office 2782584 ⤷  Get Started Free 132021000000197 Italy ⤷  Get Started Free
European Patent Office 2782584 ⤷  Get Started Free C202130068 Spain ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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