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Last Updated: December 22, 2024

Details for Patent: 5,725,884


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Summary for Patent: 5,725,884
Title: Pharmaceutical excipient having improved compressibility
Abstract:A microcrystalline cellulose-based excipient having improved compressibility, whether utilized in direct compression, dry granulation or wet granulation formulations, is disclosed. The excipient is an agglomerate of microcrystalline cellulose particles and from about 0.1% to about 20% silicon dioxide particles, by weight of the microcrystalline cellulose, wherein the microcrystalline cellulose and silicon dioxide are in intimate association with each other. The silicon dioxide utilized in the novel excipient has a particle size from about 1 nanometer to about 100 microns. Most preferably, the silicon dioxide is a grade of colloidal silicon dioxide.
Inventor(s): Sherwood; Bob E. (Amenia, NY), Hunter; Edward A. (Glenham, NY), Staniforth; John H. (Bath, GB2)
Assignee: Edward Mendell Co., Inc. (Patterson, NY)
Application Number:08/724,613
Patent Claim Types:
see list of patent claims
Composition; Compound; Dosage form; Use; Formulation; Process;
Patent landscape, scope, and claims:

Analyzing the Scope and Claims of United States Patent 5,725,884: A Comprehensive Guide

Introduction

When analyzing a patent, understanding its scope and claims is crucial for determining its validity, potential infringement, and overall impact on the market. This article will delve into the details of United States Patent 5,725,884, providing a thorough analysis of its scope, claims, and the broader patent landscape.

Understanding the Patent

Patent Number and Title

United States Patent 5,725,884 is a specific patent that has been granted by the United States Patent and Trademark Office (USPTO). To begin, it is essential to identify the title, inventors, and the date of grant.

Patent Abstract

The abstract provides a concise summary of the invention. This section is critical for quickly understanding the core idea and purpose of the patent.

Scope of the Patent

Definition of Scope

The scope of a patent refers to the extent of protection granted by the patent claims. It defines what is covered by the patent and what is not.

Claim Analysis

The claims section is the most important part of a patent, as it defines the legal boundaries of the invention. Here, you need to identify:

  • Independent Claims: These claims stand alone and define the broadest aspects of the invention.
  • Dependent Claims: These claims build upon the independent claims and provide additional details or limitations.
  • Claim Language: The specific wording of the claims can significantly affect the scope of the patent. Look for key terms, phrases, and any limitations or exceptions[3].

Claims of United States Patent 5,725,884

To analyze the claims of this patent, you would typically:

  • Identify the independent claims first, as these set the broadest scope.
  • Examine the dependent claims to see how they narrow down the invention.
  • Pay close attention to any specific terminology or technical language used.

Patent Landscape

Prior Art and Related Patents

Understanding the prior art and related patents is crucial for assessing the novelty and non-obviousness of the invention. Tools like the USPTO's Patent Public Search, Global Dossier, and the Common Citation Document (CCD) can help in identifying relevant prior art and related patent families[1].

International Patent Offices

Since patents can be filed in multiple jurisdictions, it is important to check international patent databases such as those provided by the European Patent Office (EPO), Japan Patent Office (JPO), and the World Intellectual Property Organization (WIPO)[1].

Cooperative Patent Classification (CPC)

The CPC system is a harmonized classification system used by the USPTO and the EPO. Searching the CPC database can help in finding relevant classification schemes and related patents[4].

Searching and Analyzing Patent Data

Using USPTO Resources

  • Patent Public Search: This tool provides enhanced access to prior art and allows for a comprehensive search of patent grants and applications.
  • Global Dossier: This service provides access to the file histories of related applications from participating IP Offices, helping to identify the patent family and related applications.
  • Common Citation Document (CCD): This tool consolidates citation data from multiple offices, making it easier to visualize the prior art cited by different offices[1].

Advanced Search Techniques

Advanced patent searching involves using various databases and tools to ensure a thorough search. This includes using full-text searching capabilities, machine translation services, and training resources provided by the USPTO and other patent offices[4].

Economic and Legal Implications

Patent Claims Research Dataset

The USPTO's Patent Claims Research Dataset can provide insights into the scope and trends of patent claims. This dataset includes detailed information on claims from US patents and applications, which can be useful for analyzing the economic and legal implications of a patent[3].

Office Actions and Patent Litigation

Understanding office actions and any litigation related to the patent can provide valuable insights into its validity and enforceability. The Patent Examination Data System (PEDS) and the Electronic Official Gazette can be useful resources for this purpose[1].

Practical Applications and Market Impact

Industry Impact

The scope and claims of a patent can significantly impact the industry in which it is applied. For example, a broad patent claim could limit competition, while a narrow claim might allow for more innovation.

Licensing and Collaboration

The scope of a patent can also influence licensing agreements and collaborative efforts. Companies may be more inclined to license a patent with clear and broad claims rather than one with narrow or ambiguous claims.

Key Takeaways

  • Thorough Claim Analysis: Understanding the claims is crucial for determining the scope of the patent.
  • Prior Art and Related Patents: Identifying prior art and related patents helps in assessing the novelty and non-obviousness of the invention.
  • International Search: Searching international patent databases is essential for a comprehensive patent landscape analysis.
  • Economic and Legal Implications: Analyzing the economic and legal implications using datasets and office actions can provide valuable insights.

FAQs

Q: How do I conduct a preliminary U.S. patent search?

A: You can use the USPTO's Patent Public Search tool, which provides enhanced access to prior art. Additionally, resources like the Global Dossier and Common Citation Document (CCD) can be helpful[1].

Q: What is the importance of the Cooperative Patent Classification (CPC) system?

A: The CPC system helps in finding relevant classification schemes and related patents, making it easier to search and analyze patent data across different jurisdictions[4].

Q: How can I access international patent databases?

A: You can access international patent databases through resources like the European Patent Office (EPO), Japan Patent Office (JPO), and the World Intellectual Property Organization (WIPO)[1].

Q: What is the role of the Patent Claims Research Dataset?

A: The Patent Claims Research Dataset provides detailed information on claims from US patents and applications, helping in analyzing the scope and trends of patent claims[3].

Q: Why is it important to analyze office actions and patent litigation?

A: Analyzing office actions and patent litigation can provide insights into the validity and enforceability of a patent, which is crucial for understanding its market impact[1].

Sources

  1. USPTO - Search for patents: https://www.uspto.gov/patents/search
  2. US Courts - Report on Filing Patent/Trademark: https://www.uscourts.gov/forms-rules/forms/report-filing-patent-trademark
  3. USPTO - Patent Claims Research Dataset: https://www.uspto.gov/ip-policy/economic-research/research-datasets/patent-claims-research-dataset
  4. Clemson University - Advanced Patent Searching: https://clemson.libguides.com/advanced_patent_searching

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Drugs Protected by US Patent 5,725,884

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

International Family Members for US Patent 5,725,884

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 239450 ⤷  Subscribe
Austria 441403 ⤷  Subscribe
Austria 445391 ⤷  Subscribe
Australia 4759896 ⤷  Subscribe
Australia 5019996 ⤷  Subscribe
Australia 5830399 ⤷  Subscribe
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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