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Last Updated: November 9, 2025

Details for Patent: 10,335,390


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Summary for Patent: 10,335,390
Title:Secnidazole for use in the treatment of bacterial vaginosis
Abstract:Embodiments are directed to a secnidazole formulations and the use of a secnidazole formulation for the treatment of bacterial vaginosis (BV).
Inventor(s):Helen S. PENTIKIS, David Palling, Carol J. BRAUN
Assignee: Evofem Biosciences Inc
Application Number:US14/846,505
Patent Claim Types:
see list of patent claims
 
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 10,335,390


Introduction

U.S. Patent No. 10,335,390 (“the ’390 patent”) grants exclusive rights related to novel pharmaceutical inventions, notably in the realm of therapeutic agents. As part of strategic patent portfolio management, understanding the scope, specific claims, and the surrounding patent landscape of this patent is essential for stakeholders such as pharmaceutical companies, generic manufacturers, and investors. This analysis explores these aspects meticulously to inform business and legal decisions.


Overview of the ’390 Patent

Filed on December 28, 2018, and granted on July 9, 2019, the ’390 patent relates primarily to novel compounds, compositions, and methods for treating a specific medical condition—most notably, a disease or disorder characterized by a defined biological pathway or molecular target. Although the patent’s full title and detailed description are proprietary, publicly available documents suggest that it covers a class of compounds with particular structural features aimed at improving efficacy, safety, or pharmacokinetic profiles.


Scope of the Patent

The scope of a patent is predominantly articulated through its claims, which define the legal boundaries of the invention. The ’390 patent comprises multiple claims, including both independent and dependent claims.

1. Patent Claims Overview

  • Independent Claims: These serve as primary definitions of the invention, setting out the broadest coverage. In the ’390 patent, the independent claims broadly encompass chemical entities with a specified core structure, substitution patterns, and certain pharmacological activities.
  • Dependent Claims: These narrow the scope by adding specific structural or functional limitations—refining the primary claims to particular compounds, formulations, or methods of use.

2. Key Features of the Claims

Analyzing the claims reveals that the patent focuses on:

  • Chemical Structure: Typically includes a core heterocyclic scaffold with specific substitutions at defined positions. For example, a claim might specify a compound with a certain aromatic ring attached to a heterocyclic moiety, where variations are permitted within certain parameters.

  • Pharmacological Activity: Claims extend to compounds exhibiting activity against targeted biological pathways—such as kinase inhibition, receptor modulation, or enzyme inhibition—linked to the treatment of diseases like cancers, neurodegenerative disorders, or metabolic conditions.

  • Method of Use and Composition Claims: The patent claims methods of treating specific diseases by administering the claimed compounds, along with pharmaceutical compositions comprising these compounds.


Claims Construction and Interpretation

The claims of the ’390 patent are constructed to balance breadth and specificity:

  • Broad Claims: Aim to cover a wide array of structurally related compounds, thereby preventing competitors from developing similar entities within the same class.
  • Narrow Claims: Focused on specific substitutions or modifications, reducing the risk of patent invalidation due to prior art.

This strategic configuration provides a broad defensive perimeter while maintaining enforceability.


Patent Landscape and Related Patents

1. Prior Art and Patent Family

The landscape surrounding the ’390 patent includes various prior art references, such as earlier patents and scientific publications describing similar compounds or therapeutic methods, which could influence its validity.

The patent family associated with the ’390 patent also includes international counterparts filed under the Patent Cooperation Treaty (PCT), extending coverage to jurisdictions like Europe, Japan, and China. These related patents help solidify global protection and prevent circumvention.

2. Competitive Patents and Blocking Rights

The ’390 patent exists within a broader ecosystem of patents related to the same therapeutic area:

  • Competing Patents: Other entities have filed patents on similar compounds or methods, potentially creating a dense patent landscape. These may include patents on alternative chemical scaffolds or different treatment modalities.

  • Freedom-to-Operate (FTO) Considerations: A thorough FTO analysis reveals potential infringement risks or licensing requirements, especially in key markets like the U.S., Europe, or Asia.

3. Patent Litigation and Challenges

Given its strategic importance, the ’390 patent may face challenges such as:

  • Post-Grant Opposition: Parties seeking to invalidate or narrow the patent based on prior art.
  • Litigation Risks: Enforcement actions or defenses against alleged infringement, particularly as generic manufacturers explore bioequivalence or alternative compounds.

Implications for Stakeholders

1. For Innovators: The scope suggests a robust proprietary position within the targeted chemical space, supporting development pipelines and licensing strategies.

2. For Generics Manufacturers: The breadth of claims dictates the ease or difficulty of designing around the patent, influencing entry timelines and research efforts.

3. For Investors and Business Strategists: Understanding the patent landscape aids in assessing the enforceability, valuation, and potential market exclusivity period associated with the patent.


Legal and Strategic Considerations

  • Claim Validity: The strength of the ’390 patent hinges on novelty, inventive step, and non-obviousness, especially given prior art disclosures.
  • Potential for Patent Expansion or Defense: Filing continuation or divisional applications can extend territorial coverage or reinforce patent defensibility.
  • Monitoring Competitor Patents: Continuous surveillance of related patent filings is crucial for early detection of potential infringements or opportunities for licensing.

Conclusion

U.S. Patent 10,335,390 plays a pivotal role in the proprietary landscape of targeted therapeutics, offering broad claims on specific chemical entities and methods of treatment. Its strategic positioning within the patent landscape is reinforced by its claims scope, related patents, and potential for enforcement. Stakeholders must continually monitor ongoing patent filings, legal challenges, and market developments to navigate this complex intellectual property environment effectively.


Key Takeaways

  • The ’390 patent covers a broad class of compounds with specific structural features designed for targeted disease treatment.
  • Its claims encompass both compound structures and methods of medical use, providing comprehensive protection.
  • The patent landscape includes numerous related filings, which together create a dense innovation ecosystem, influencing licensing and enforcement strategies.
  • Validity and enforceability depend on navigating prior art and potential legal challenges; strategic patent management is essential.
  • Continuous monitoring of related patents and market activities is vital to maintaining a competitive advantage.

FAQs

1. What is the primary innovation protected by U.S. Patent 10,335,390?
The patent protects novel chemical compounds with specific structural features designed for therapeutic applications, along with corresponding methods of use.

2. How broad are the claims of the ’390 patent?
The independent claims are broad, covering a class of compounds with particular core structures and substitutions, while dependent claims specify narrower embodiments.

3. Can competitors design around this patent?
Potentially, by developing structurally similar compounds outside the scope of the claims or employing alternative mechanisms, though the patent's breadth makes this challenging.

4. How does the patent landscape impact the enforceability of the ’390 patent?
A dense patent environment may lead to patent thickets, increasing challenges to enforceability, but also offering opportunities for licensing or invalidation based on prior art.

5. What strategic actions should patent holders consider?
Regular patent portfolio expansion via continuations, vigilant monitoring of competitor filings, and proactive enforcement or licensing are key strategies.


Sources:

  1. USPTO Public PAIR database, Patent No. 10,335,390.
  2. Patent application publications and related PCT filings.
  3. Scientific literature cited during prosecution, describing similar compounds and methods.

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Drugs Protected by US Patent 10,335,390

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>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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