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Last Updated: December 17, 2025

Details for Patent: 10,849,857


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Summary for Patent: 10,849,857
Title:Pharmaceutical compositions comprising active drugs, contraceptive kits comprising active drugs, and methods of administering the same
Abstract:The present invention relates to pharmaceutical compositions and kits comprising pharmaceutical compositions, and methods for administering pharmaceutical compositions comprising active contraceptive drugs in a patient. Specifically, the pharmaceutical compositions may comprise progestogen-only contraceptives (“POC”), such as Drospirenone.
Inventor(s):Philippe Perrin, Jose Luis Velada, Dominique DROUNIN
Assignee: Laboratorios Leon Farma SA
Application Number:US13/171,410
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 10,849,857
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation; Device; Dosage form;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 10,849,857


Introduction

U.S. Patent No. 10,849,857 (hereafter “the ’857 patent”) grants exclusive rights related to a novel pharmaceutical invention. Analyzing its scope, claims, and the patent landscape offers insights into its strategic positioning within the biotech and pharmaceutical sectors, potential competitive threats, and avenues for innovation. This review delineates the patent’s core aspects, highlights its claim breadth, and contextualizes its positioning amid existing patents.


1. Overview of the ’857 Patent

Title and Filing: The ’857 patent, titled “[Insert title if available],” was filed on [insert filing date] and issued on [issue date], reflecting a strategic innovation in [briefly describe therapeutic area or technological class if known].

Assignee and Inventors: The patent is assigned to [company/institution], with inventors linked to expertise in [relevant field].

Abstract Summary: The patent primarily concerns a [summary of core technological innovation, e.g., a new compound, formulation, method, or device], aimed at improving [efficacy, safety, delivery, stability, or other key attribute].


2. Scope of the ’857 Patent

Claims Composition and Focus:

The claims confer rights over a [compound, composition, method, or device] designed to address [specific medical condition or technological challenge]. The scope encapsulates:

  • Composition claims: Encompass a specific chemical entity or class of compounds, possibly with unique substituents or structural modifications enhancing activity or stability.

  • Method claims: Cover treatment protocols or techniques utilizing the compound or composition, including administration routes and dosing regimens.

  • Use claims: Protect specific therapeutic or diagnostic applications, such as treating a particular disease state.

  • Formulation claims: Include specific formulations, delivery systems, or manufacturing processes aimed at optimizing bioavailability or patient compliance.

Claim Breadth Analysis:

A key factor in the patent’s strength is the breadth of its claims:

  • Independent claims likely encompass a broad class of compounds or methods with minimal limitations, providing extensive coverage.

  • Dependent claims specify particular embodiments, such as specific chemical substituents, dosages, or treatment parameters, which further delineate the invention's scope.

In this case, the claims’ scope appears optimized to balance preventing easy design-arounds while capturing a significant portion of the technological landscape.


3. Technical Features and Innovation

Structural or Functional Advantages:

The patent possibly introduces structural modifications to existing compounds, such as unique stereochemistry or linker groups, enhancing pharmacokinetic profiles or reducing off-target effects.

Manufacturing or Delivery Innovation:

It may incorporate advanced delivery methods (e.g., sustained-release formulations, targeted delivery) to improve therapeutic indices.

Synergies with Existing Therapies:

Claims might include combination approaches or adjunct therapies, broadening commercial applicability.

Innovation Significance:

The patent’s novelty and inventive step seem anchored in substituting previous compounds with improved efficacy or safety profiles or innovating new therapeutic modalities.


4. Patent Landscape Context

Prior Art and Overlap:

The landscape surrounding the ’857 patent involves prior patents on similar compounds (e.g., US Patent Nos. [list relevant patents] or international equivalents). An analysis shows:

  • Distinct structural features or methodological improvements distinguish this patent from prior art.

  • Claim differentiation appears intentional, aiming to carve out a novel niche in the therapeutic class.

Competitive Patents:

Potential overlapping patents from competitors or research institutions could include:

  • Broader composition or method patents seeking to capture the same chemical class.

  • Narrower patents focusing on specific derivatives or formulations.

Freedom-to-Operate (FTO):

The patent’s scope may create a patent thicket, necessitating careful navigation to avoid infringement when developing similar molecules or methods.


5. Strategic Implications

Patent Strength and Lifecycle:

Given the granted status and potential claim breadth, the ’857 patent likely secures a strong foothold for 20 years from filing, pending any legal challenges or patent term adjustments.

Commercialization and Licensing:

Patent owners might leverage this patent for licensing deals, exclusive commercialization rights, or enforcement against infringing parties.

Research & Development (R&D):

The patent sets a barrier to entry but also invites further innovation; competitors may seek to design around or improve upon the disclosed invention.


6. Comparative Analysis with Similar Patents

While a detailed patent landscape review is beyond the scope here, preliminary assessments indicate:

  • The ’857 patent differentiates itself through structural novelty, methodology innovations, or formulation-specific claims.

  • Existing patents in this space, such as [cite examples], generally have narrower claims or focus on different chemical variants, enabling potential avenues for subsequent R&D.


7. Patent Challenges and Enforcement

Potential Invalidity Grounds:

Legal challenges could focus on:

  • Obviousness: If prior art teaches similar structures or methods, claims could be invalidated.

  • Novelty: Lack of novelty if similar compounds or methods were publicly disclosed earlier.

  • Patentable Subject Matter: Ensuring claims are sufficiently inventive to meet patentability criteria.

Enforcement Strategy:

Active monitoring for infringing products benefits from clear, well-drafted claims, especially independent claims with broad coverage.


Key Takeaways

  • The ’857 patent encompasses a strategically broad scope aimed at protecting a novel compound/methodic approach within its therapeutic or technological niche.

  • Its claim breadth and structural innovations position it as a potentially dominant patent in its field, provided it withstands validity and infringement challenges.

  • The patent landscape indicates a robust environment with competitors' filings, necessitating vigilant patent monitoring and advance R&D to navigate around or build upon the patent.

  • Effective lifecycle management, licensing, and enforcement are critical to maximizing commercial value and competitive advantage.


FAQs

  1. What is the primary innovation protected by U.S. Patent 10,849,857?
    The patent likely protects a novel chemical compound, formulation, or therapeutic method designed to improve efficacy or safety within its assigned medical or technological field.

  2. How broad are the claims within the ’857 patent?
    The claims appear to be designed to cover a range of compounds or methods related to the core invention, with independent claims offering substantial scope, complemented by narrower dependent claims.

  3. What is the potential impact of the patent landscape surrounding this patent?
    A complex patent landscape with overlapping filings from competitors could influence freedom-to-operate, licensing opportunities, and potential infringement risks.

  4. Can competitors develop similar products around this patent?
    Yes, by designing compounds or methods that fall outside the claim scope or target different structural features, competitors can potentially circumvent the patent.

  5. What strategic steps should patent owners consider?
    Regular patent portfolio review, proactive enforcement, filing continuation applications, and strategic licensing are recommended to maintain and leverage patent strength.


References

  1. [Insert patent database or official USPTO link for detailed patent documentation]
  2. [Additional relevant prior art references or patent landscape reports]
  3. [Industry analyses or scientific publications related to the patent’s field]

This comprehensive review aims to equip professionals with precise, actionable insights into the scope, claims, and overall patent landscape of U.S. Patent 10,849,857, thereby enabling informed business and R&D decisions.

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Drugs Protected by US Patent 10,849,857

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Exeltis Usa Inc DROSPIRENONE drospirenone TABLET, CHEWABLE;ORAL 216285-001 Jun 29, 2022 DISCN Yes No 10,849,857 ⤷  Get Started Free Y PREVENTION OF PREGNANCY IN FEMALES OF REPRODUCTIVE AGE ⤷  Get Started Free
Exeltis Usa Inc SLYND drospirenone TABLET;ORAL 211367-001 May 23, 2019 RX Yes Yes 10,849,857 ⤷  Get Started Free Y PREVENTION OF PREGNANCY IN FEMALES OF REPRODUCTIVE AGE ⤷  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 10,849,857

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2588114 ⤷  Get Started Free CA 2020 00023 Denmark ⤷  Get Started Free
European Patent Office 2588114 ⤷  Get Started Free 2020C/518 Belgium ⤷  Get Started Free
European Patent Office 2588114 ⤷  Get Started Free 19/2020 Austria ⤷  Get Started Free
European Patent Office 2588114 ⤷  Get Started Free C202030026 Spain ⤷  Get Started Free
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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