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Last Updated: December 27, 2024

Details for Patent: 6,730,325


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Summary for Patent: 6,730,325
Title: Multiparticulate modified release composition
Abstract:The invention relates to a multiparticulate modified release composition that in operation delivers an active ingredient in a pulsed or bimodal manner. The multiparticulate modified release composition comprises an immediate release component and a modified release component; the immediate release component comprising a first population of active ingredient containing particles and the modified release component comprising a second population of active ingredient containing particles coated with a controlled release coating; wherein the combination of the immediate release and modified release components in operation deliver the active ingredient in a pulsed or a bimodal manner. The invention also relates to a solid oral dosage form containing such a multiparticulate modified release composition. The plasma profile achieved by the multiparticulate modified release composition is advantageous in reducing patient tolerance to the active ingredient and in increasing patient compliance by reducing dosage frequency.
Inventor(s): Devane; John G. (Athlone, IE), Stark; Paul (Athlone, IE), Fanning; Niall M. M. (Athlone, IE)
Assignee: Elan Corporation, plc (Dublin, IE)
Application Number:09/850,425
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 6,730,325
Patent Claim Types:
see list of patent claims
Composition; Delivery; Formulation; Dosage form; Use;
Patent landscape, scope, and claims:

United States Patent 6,730,325: A Detailed Analysis of Scope, Claims, and Patent Landscape

Introduction

The United States Patent 6,730,325, titled "Multiparticulate Modified Release Composition," was granted on May 7, 2001. This patent is significant in the field of pharmaceuticals, particularly in the development of drug delivery systems. Here, we will delve into the scope, claims, and the broader patent landscape surrounding this invention.

Background and Invention Overview

The patent describes a multiparticulate modified release composition designed to release an active ingredient in a controlled manner. This is crucial for maintaining therapeutic drug levels over an extended period, enhancing patient compliance, and reducing side effects associated with traditional immediate-release formulations[2].

Scope of the Invention

The scope of the invention encompasses several key aspects:

Composition

The patent details a composition that includes multiple particles, each containing an active ingredient and a release-modifying agent. These particles can be formulated to release the active ingredient at different rates, allowing for a tailored release profile[2].

Release Mechanism

The release mechanism is a critical component of the invention. The particles are designed to release the active ingredient in a controlled manner, which can be achieved through various techniques such as coating, matrix formation, or using specific excipients[2].

Applications

The multiparticulate modified release composition can be applied to a wide range of therapeutic areas, including but not limited to, cardiovascular diseases, neurological disorders, and gastrointestinal conditions. This versatility makes the invention highly valuable in the pharmaceutical industry.

Claims Analysis

The patent includes several claims that define the scope of the invention:

Independent Claims

  • Claim 1 describes the multiparticulate composition comprising multiple particles, each containing an active ingredient and a release-modifying agent.
  • Claim 2 specifies the method of preparing the composition, including the steps of mixing, granulating, and coating the particles[2].

Dependent Claims

  • These claims further detail the composition and method, including specific types of release-modifying agents, particle sizes, and coating materials. For example, Claim 3 describes the use of a specific polymer as the release-modifying agent[2].

Claim Coverage and Scope Concepts

To understand the full impact of the patent, it is essential to analyze the claim coverage and scope concepts. This involves categorizing the claims by their scope concepts, which can help in identifying gaps or opportunities in the patent landscape.

Claim Coverage Matrix

Using a Claim Coverage Matrix, as described in patent analytics tools, one can categorize the claims of the 6,730,325 patent by their scope concepts. This matrix helps in identifying which claims are actively protecting the intellectual property and where there might be gaps or opportunities for further development[3].

Scope Concepts

The scope concepts related to this patent would include:

  • Controlled Release Mechanisms: Claims related to the specific methods of controlling the release of the active ingredient.
  • Particle Formulation: Claims detailing the composition and preparation of the particles.
  • Therapeutic Applications: Claims specifying the use of the composition in various therapeutic areas[2].

Patent Landscape Analysis

Analyzing the patent landscape involves looking at the broader context of related patents and how they interact with the 6,730,325 patent.

Prior Art and Related Patents

The patent landscape includes numerous prior art documents and related patents that have contributed to the development of modified release formulations. For example, patents such as those listed in the references cited section of the 6,730,325 patent provide a historical context and show the evolution of drug delivery systems[2].

Competitor Patents

Competitor patents in the field of modified release formulations can provide insights into how other companies are addressing similar challenges. This analysis can help in identifying potential collaborations or areas where the 6,730,325 patent offers unique advantages.

Future Development Opportunities

Using tools like Claim Charts and scope concepts analysis, companies can identify future design opportunities and areas where they may need to strengthen their patent coverage. This proactive approach can help in maintaining a competitive edge in the pharmaceutical industry[3].

Litigation and Enforcement

The 6,730,325 patent has been involved in litigation, highlighting its importance and the potential for disputes over intellectual property rights. For instance, the patent was cited in a court case related to infringement claims, underscoring the need for robust patent enforcement strategies[5].

Conclusion and Key Takeaways

  • Controlled Release Technology: The 6,730,325 patent is a significant contribution to controlled release technology, offering a versatile and effective method for drug delivery.
  • Claims and Scope: The patent's claims are detailed and cover various aspects of the composition and its preparation, providing strong intellectual property protection.
  • Patent Landscape: Understanding the broader patent landscape is crucial for identifying gaps, opportunities, and potential competitors.
  • Future Development: Analyzing scope concepts and using patent analytics tools can help in identifying future development opportunities and maintaining a competitive edge.

Key Takeaways

  • The 6,730,325 patent is a critical invention in the field of pharmaceuticals, particularly for controlled release formulations.
  • The claims of the patent are comprehensive, covering the composition, preparation, and therapeutic applications.
  • Analyzing the patent landscape and using patent analytics tools is essential for strategic decision-making.
  • The patent has been involved in litigation, emphasizing the importance of robust patent enforcement.

Frequently Asked Questions (FAQs)

What is the main invention described in the 6,730,325 patent?

The main invention is a multiparticulate modified release composition designed to release an active ingredient in a controlled manner.

How does the release mechanism work in this patent?

The release mechanism involves using release-modifying agents and specific formulations to control the rate at which the active ingredient is released.

What are the therapeutic applications of this invention?

The invention can be applied to various therapeutic areas, including cardiovascular diseases, neurological disorders, and gastrointestinal conditions.

How can patent analytics tools help in understanding this patent?

Patent analytics tools can help in categorizing claims by scope concepts, identifying gaps or opportunities in the patent landscape, and reviewing patent coverage through interactive claim charts.

Why is the 6,730,325 patent significant in the pharmaceutical industry?

The patent is significant because it provides a versatile and effective method for controlled drug delivery, enhancing patient compliance and therapeutic outcomes.

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Drugs Protected by US Patent 6,730,325

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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