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Last Updated: December 22, 2024

Details for Patent: 4,892,739


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Summary for Patent: 4,892,739
Title: Osmotic continuous dispensing oral delivery system containing a pharmaceutically acceptable active agent having a improved core membrane adhesion properties
Abstract:An osmotic dispensing delivery system suitable for oral administration, containing a pharmaceutically acceptable active agent for the controlled continuous release of about 50 to about 90 percent by weight of said active agent into the gastrointestinal tract at a rate of about 5 to about 12 percent by weight of said agent per hour consisting essentially of: (a) a shaped solid core containing an osmotically active composition comprising an effective amount of a pharmaceutically acceptable active agent, alone or in combination with a pharmaceutically acceptable binder, an osmotically active driving agent, or tabletting lubricant, or mixtures thereof; (b) said core being substantially evenly coated with a discrete layer of a water-soluble, or water-dispersible, and water permeable substantially non-osmotically active solid polymeric binder, said binder layer being present in an amount between about 0.3 percent and about 10 percent of the weight of the core; (c) a semi-permeable shaped wall member impermeable to said active composition and permeable to gastrointestinal fluid, surrounding and adhesively bonded to the binding layer; and (d) at least one passageway in the wall, for dispensing the active agent, in communication with said core and the external environment.
Inventor(s): Shah; Shailesh B. (Union, NJ), Koparkar; Arun D. (Westfield, NJ)
Assignee: Ciba-Geigy Corporation (Ardsley, NY)
Application Number:07/185,564
Patent Claim Types:
see list of patent claims
Delivery; Composition; Dosage form;
Patent landscape, scope, and claims:

Analyzing the Scope and Claims of United States Patent 4,892,739: A Comprehensive Guide

Introduction

United States Patent 4,892,739, though an older patent, still holds significance in understanding the evolution and current landscape of patent law and technology. This analysis will delve into the scope, claims, and the broader patent landscape surrounding this patent.

Background of the Patent

Patent Overview

United States Patent 4,892,739 was granted on January 9, 1990. To analyze this patent, one must first understand its subject matter, claims, and the technological context in which it was filed.

Technological Context

In the late 1980s and early 1990s, technological advancements were rapid, particularly in fields such as electronics, software, and mechanical engineering. This patent likely reflects innovations of that era.

Scope of the Patent

Subject Matter

The subject matter of the patent is crucial in understanding its scope. This involves identifying the specific invention, its components, and how it operates. For example, if the patent pertains to a mechanical device, the scope would include the design, functionality, and any unique features of that device.

Claims Analysis

Independent and Dependent Claims

Patent claims are the heart of any patent, defining the scope of protection. Independent claims stand alone and define the invention broadly, while dependent claims build upon the independent claims, adding more specific details. Analyzing these claims helps in understanding what is protected and what is not[2].

Claim Construction

Claim construction is a critical step in patent litigation and analysis. It involves interpreting the meaning of the claim terms to determine the scope of the patent. This process is governed by legal principles, such as those outlined in cases like Markman v. Westview Instruments, Inc.[2].

Patent Claims and Their Significance

Claim Types

  • Utility Claims: These claims define the functional aspects of the invention.
  • Design Claims: These claims focus on the ornamental design of the invention.
  • Method Claims: These claims describe the steps or processes involved in the invention.

Claim Limitations

Each claim has limitations that define the boundaries of the invention. These limitations are crucial in determining infringement and validity.

Patent Landscape Analysis

Importance of Patent Landscape

A patent landscape analysis provides a comprehensive view of the patent ecosystem surrounding a particular technology or invention. This includes identifying key players, trends, and potential gaps in the market[3].

Steps in Patent Landscape Analysis

  1. Define the Scope: Identify the specific technology or field of interest.
  2. Conduct Patent Searches: Use databases like the USPTO Public Search Facility or global dossier services to find relevant patents[4].
  3. Analyze Patent Data: Review and organize the patent data to extract valuable insights.
  4. Identify Key Players: Determine the major entities involved in the technology, including corporations, universities, and research institutions.
  5. Assess Market Trends: Analyze the trends and future directions in the technology area.

Tools and Resources

  • Global Dossier: Provides access to file histories of related applications from participating IP Offices[4].
  • Common Citation Document (CCD): Consolidates prior art cited by multiple offices for the same invention[4].
  • Patent and Trademark Resource Centers (PTRCs): Offers local search resources and training in patent search techniques[4].

Impact on Current Patent Practices

Fee Adjustments and Financial Sustainability

The USPTO's recent proposals to adjust patent fees highlight the ongoing efforts to ensure financial sustainability and improve the efficiency of the patent system. These adjustments can impact the cost of obtaining and maintaining patents, affecting both small and large entities[1].

Small Claims Patent Court

The concept of a small claims patent court, as studied by ACUS, aims to provide a more accessible and cost-effective way for small entities to resolve patent disputes. This could significantly alter the landscape for smaller inventors and businesses[5].

Legal and Policy Considerations

Claim Construction and Validity

Legal decisions, such as those from the Federal Circuit, continue to shape how claims are constructed and interpreted. This has a direct impact on the validity and enforceability of patents like 4,892,739[2].

International Harmonization

Efforts to harmonize international patent practices, such as the Common Citation Document, facilitate a more integrated global patent system. This can simplify the process of filing and managing patents across different jurisdictions[4].

Key Takeaways

  • Patent Claims: The claims of a patent define its scope and are crucial for determining infringement and validity.
  • Patent Landscape Analysis: This analysis helps in understanding the broader technological and market context of a patent.
  • Legal and Policy Considerations: Changes in patent fees, small claims courts, and international harmonization can significantly impact patent practices.
  • Tools and Resources: Utilizing tools like the Global Dossier and CCD can streamline patent searches and analyses.

FAQs

What is the significance of claim construction in patent law?

Claim construction is critical as it determines the scope of protection for a patent. It involves interpreting the meaning of claim terms, which can be a question of law reviewed de novo on appeal[2].

How does a patent landscape analysis benefit businesses?

A patent landscape analysis provides valuable insights into the technological and market trends, helping businesses make informed decisions about innovation, investment, and litigation strategies[3].

What is the purpose of the Global Dossier service?

The Global Dossier service aims to modernize the global patent system by providing a single portal for accessing file histories of related applications from participating IP Offices, facilitating more efficient patent searches and management[4].

Why are patent fee adjustments important?

Patent fee adjustments are crucial for ensuring the financial sustainability of the USPTO and improving the efficiency of the patent system. These adjustments can impact the cost of obtaining and maintaining patents[1].

What is the proposed small claims patent court intended to achieve?

The proposed small claims patent court is designed to provide a more accessible and cost-effective way for small entities to resolve patent disputes, making the patent system more inclusive and efficient for all stakeholders[5].

Sources

  1. Federal Register/Vol. 89, No. 65/Wednesday, April 3, 2024 - GovInfo
  2. VASCULAR SOLUTIONS LLC v. MEDTRONIC, INC. - CAFC
  3. How to perform a patent landscape analysis in 5 key steps - IP Checkups
  4. Search for patents - USPTO
  5. U.S. Patent Small Claims Court - ACUS

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Drugs Protected by US Patent 4,892,739

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 4,892,739

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 75939 ⤷  Subscribe
Australia 3268789 ⤷  Subscribe
Australia 618083 ⤷  Subscribe
Canada 1334382 ⤷  Subscribe
German Democratic Republic 288093 ⤷  Subscribe
Germany 58901373 ⤷  Subscribe
Denmark 175232 ⤷  Subscribe
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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