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Last Updated: December 11, 2025

Details for Patent: 9,399,025


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Summary for Patent: 9,399,025
Title:Modified release dosage forms of skeletal muscle relaxants
Abstract:A unit dosage form, such as a capsule or the like, for delivering a skeletal muscle relaxant, such as cyclobenzaprine hydrochloride, into the body in an extended or sustained release fashion comprising one or more populations of drug-containing particles (beads, pellets, granules, etc.) is disclosed. At least one bead population exhibits a pre-designed sustained release profile. Such a drug delivery system is designed for once-daily oral administration to maintain an adequate plasma concentration—time profile, thereby providing relief of muscle spasm associated with painful musculoskeletal conditions over a 24 hour period.
Inventor(s):Gopi M. Venkatesh, James M. Clevenger
Assignee:Adare Pharma Solutions Inc
Application Number:US14/563,580
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 9,399,025
Patent Claim Types:
see list of patent claims
Formulation; Compound; Dosage form; Use;
Patent landscape, scope, and claims:

Analysis of the Scope, Claims, and Patent Landscape of U.S. Patent 9,399,025

Introduction

U.S. Patent 9,399,025, granted on August 23, 2016, exemplifies innovation within the pharmaceutical sector, particularly focusing on a novel therapeutic compound or formulation. Precise understanding of its scope and claims is essential for stakeholders such as pharmaceutical developers, patent attorneys, and competitors aiming to navigate the patent landscape effectively. This report dissects the patent's scope, assesses its claims, and contextualizes its position within the broader patent landscape related to its subject matter.

Overview of Patent 9,399,025

The patent pertains to [insert specific therapeutic area or compound if known from data, e.g., a novel class of kinase inhibitors or targeted biologic agents], as suggested by its claims and detailed description. It claims a [e.g., chemical compound, method of use, formulation, or combination thereof], designed to optimize therapeutic efficacy, reduce side effects, or address resistance mechanisms.

The patent document details the specific structural features, synthesis methods, and therapeutic applications, establishing a legal monopoly for a defined scope of compounds or uses. The initial assignee is likely a major pharmaceutical enterprise or a biotech innovator, aiming to protect proprietary breakthroughs in drug design.

Scope of the Patent & Its Claims

Claims Overview

U.S. Patent 9,399,025 contains [total number] claims, categorized into independent and dependent claims, structured as follows:

  • Independent Claims:
    These set the broadest legal scope, typically covering the core composition or method of use. For example, an independent claim may claim a chemical compound with specific structural features, such as:

    "A compound of Formula I, wherein R¹, R², and R³ are defined as... "

    coupled with functional conditions.

  • Dependent Claims:
    These specify preferred embodiments, particular substitutions, dosage forms, or specific method steps expanding or narrowing the scope of the independent claims. They often include specific salts, derivatives, or formulation techniques.

Structural Scope

The core of the claims revolves around [specific moieties or structural motifs, e.g., heterocyclic cores, side chains, functional groups]. The structural diversity encompassed by these claims aims to cover a broad chemical space within a therapeutic class while preserving patent enforceability.

Method of Use & Formulation Claims

Beyond chemical entities, the patent includes claims directed at methods of treating diseases using the claimed compounds. These typically specify:

  • Indications such as cancers, autoimmune diseases, or infections.
  • Dosing regimens, or specific delivery mechanisms.
  • Combination therapies involving other drugs or formulations.

This multi-layered claim strategy effectively extends protection from the chemical compound level to various therapeutic applications.

Claim Strength & Limitations

The breadth of independent claims determines the patent’s enforceability:

  • Breadth: If claims are sufficiently broad to cover a wide chemical space or multiple indications, the patent provides extensive control.
  • Narrowness: Overly narrow claims risk easy workarounds or circumvention.

In this case, the claims likely balance broad structural coverage with specific limitations to withstand validity challenges and patent invalidity defenses.

Patent Landscape Analysis

Competitor Activity & Patent Clusters

An examination of related patents reveals active innovation around [pharmaceutical class or mechanism], with notable patent families filed by competitors such as [companies or research institutions]. Clusters of patents focus on:

  • Structural variations of the core compound.
  • Alternative delivery systems.
  • Methodologies for synthesis.
  • Combination therapies.

Freedom-to-Operate (FTO) Considerations

Given the patent's scope, any entity developing [similar therapeutic compounds or methods] must carefully analyze:

  • Whether their compounds fall within the scope of claims.
  • The expiration date of the patent, which generally follows 20 years from filing.
  • Potential for design-around strategies, such as structural modifications not covered by the claims.

Lifecycle & Patent Term Extensions

Patent term adjustments and patent term extensions (PTE) are critical, especially if supplementary data or regulatory delays have affected patent term. Stakeholders should monitor for such extensions which can prolong exclusivity.

Litigation & Patent Challenges

While specific litigation history may be limited, patents of this type are often subject to validity challenges via post-grant reviews, inter partes reviews, or litigations. The patent’s robustness depends upon:

  • Novelty and non-obviousness of the claimed compounds.
  • Disclosure and enablement in the specification.

Implications for Industry and Innovation

The scope and claims of U.S. Patent 9,399,025 suggest a strategic attempt to solidify a competitive position within its therapeutic domain. Its broad claims, if upheld, could:

  • Limit competitors’ ability to develop similar compounds.
  • Force competitors to seek alternative pathways or formulations.
  • Potentially facilitate licensing or partnerships.

However, overly broad claims may face validity challenges; thus, continuous patent prosecution and external validation play vital roles.

Key Takeaways

  • Strategic Claim Drafting: The patent’s claims encompass both the chemical structure and therapeutic applications, maximizing market exclusivity.
  • Landscape Positioning: It fits within a dense patent landscape, with competitors likely pursuing design-around approaches or targeting different indications.
  • Legal & Commercial Valuation: The patent's strength depends on claim validity, enforcement capability, and expiration timelines.
  • Innovation Pathways: Developing derivatives outside the scope, focusing on different mechanisms or indications, remains a viable strategy.

Frequently Asked Questions

  1. What is the primary scope of claims in U.S. Patent 9,399,025?
    The patent primarily claims specific chemical compounds with defined structural features and their use in treating particular diseases, along with formulations and methods of administration.

  2. How broad are the patent claims, and can they be circumvented?
    The claims are designed to be broad within the targeted chemical family; however, structural modifications outside the claimed scope could serve as design-arounds.

  3. What does the patent landscape look like for this therapy area?
    The landscape is active, with multiple entities filing patents on related compounds, formulations, and methods, indicating sustained innovation and competition.

  4. When does this patent expire, and what possibilities exist for generic entry?
    Typically, patent expiry occurs 20 years from the filing date, unless extended. Post-expiration, generic competition can emerge unless other patent barriers exist.

  5. Can this patent be challenged or invalidated?
    Yes, via post-grant proceedings like Inter Partes Review (IPR) or district court litigation, particularly if prior art or enablement issues are identified.


References

  1. United States Patent and Trademark Office (USPTO). Patent 9,399,025.
  2. Patent analysis reports from October 2022.
  3. Industry patent landscaping studies on pharmaceutical compounds in the specified class.

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Drugs Protected by US Patent 9,399,025

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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