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Last Updated: December 22, 2024

Details for Patent: 5,498,421


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Summary for Patent: 5,498,421
Title: Composition useful for in vivo delivery of biologics and methods employing same
Abstract:In accordance with the present invention, there are provided compositions useful for the in vivo delivery of a biologic, wherein the biologic is associated with a polymeric shell formulated from a biocompatible material. The biologic can be associated with the polymeric shell itself, and/or the biologic, optionally suspended/dispersed in a biocompatible dispersing agent, can be encased by the polymeric shell. In another aspect, the biologic associated with polymeric shell is administered to a subject, optionally dispersed in a suitable biocompatible liquid.
Inventor(s): Grinstaff; Mark W. (Pasadena, CA), Soon-Shiong; Patrick (Los Angeles, CA), Wong; Michael (Champaign, IL), Sandford; Paul A. (Los Angeles, CA), Suslick; Kenneth S. (Champaign, IL), Desai; Neil P. (Los Angeles, CA)
Assignee: Vivorx Pharmaceuticals, Inc. (Santa Monica, CA)
Application Number:08/200,235
Patent Claim Types:
see list of patent claims
Composition; Delivery; Formulation; Use;
Patent landscape, scope, and claims:

Detailed Analysis of the Scope and Claims of United States Patent 5,498,421: A Patent Landscape Perspective

Introduction

Understanding the scope and claims of a patent is crucial for inventors, researchers, and businesses to navigate the intellectual property landscape effectively. This article will delve into the specifics of United States Patent 5,498,421, titled "Composition useful for in vivo delivery of biologics and methods employing same," and provide a comprehensive analysis of its scope, claims, and the broader patent landscape.

Patent Overview

Publication Details

United States Patent 5,498,421 was published on March 5, 1996. The patent is now expired, but its content remains relevant for understanding the technological advancements in the field of biologic delivery systems[4].

Inventors and Assignees

The patent was granted to the inventors who developed the composition and methods for in vivo delivery of biologics. Understanding the assignees and inventors can provide insights into the key players in this technological domain.

Scope of the Patent

Technological Field

The patent pertains to the field of biotechnology, specifically focusing on compositions and methods for the in vivo delivery of biologics. This includes the use of various substances and agents to facilitate the delivery of biological molecules within living organisms.

Key Components

The patent describes compositions that include biologics associated with specific agents, such as hemoglobin, oxygen, and other biocompatible materials. These compositions are designed to enhance the delivery and efficacy of biologics in vivo[4].

Claims of the Patent

Composition Claims

The patent claims cover various compositions useful for the in vivo delivery of biologics. These include:

  • Compositions containing biologics associated with hemoglobin or other oxygen-carrying agents.
  • Use of biocompatible materials such as alginic acid, lipids, and other polymers.
  • Specific formulations that include dispersing agents and other substances to enhance delivery[4].

Method Claims

The patent also claims methods for employing these compositions, including:

  • Methods for preparing the compositions.
  • Methods for administering the compositions in vivo.
  • Specific procedures for ensuring the stability and efficacy of the biologics during delivery[4].

Patent Landscape Analysis

Define Scope and Keywords

To analyze the patent landscape around US 5,498,421, one must first define the scope and relevant keywords. This includes terms like "biologic delivery," "in vivo delivery," "biocompatible materials," and "hemoglobin-based compositions"[3].

Search and Organize Patents

Using databases such as the USPTO's Patent Public Search tool, one can search for relevant patents based on the defined keywords. Organizing these patents by factors like filing date, assignee, and technological category helps in creating a comprehensive landscape[1].

Identify Trends and Key Players

Analyzing the patent filings reveals trends in the biologic delivery field. Key players such as pharmaceutical companies, biotech firms, and research institutions can be identified. For instance, companies like Biogen and Pfizer have been active in this domain, filing numerous patents related to biologic delivery systems.

Analyze Citations and Evolution

Studying the citations and references within the patents provides insights into the impact and development of the technology. This analysis can reveal how US 5,498,421 influenced subsequent patents and how the field has evolved over time[3].

Generate Insights for Decisions

The analysis outcomes can be translated into practical guidance for strategic decisions. For example, understanding the competitive landscape can help in identifying potential collaborations, licensing opportunities, or areas for further innovation.

Data Visualization and Analysis

Heat Maps and Citation Networks

Creating visualizations such as heat maps and citation networks can help in revealing trends, geographical distribution, and interconnections among patents. This can identify key players, emerging technologies, and areas of high patent activity[3].

Geographical Distribution

Analyzing the geographical distribution of patent filings can highlight innovation hotspots. For instance, regions like the San Francisco Bay Area, Boston, and European hubs like Cambridge and Munich are often hotspots for biotech innovation.

Insights from Patent Landscape Analysis

Technological Trends

A patent landscape analysis around US 5,498,421 reveals ongoing innovations in biologic delivery systems. This includes advancements in nanotechnology, gene therapy, and the use of novel biocompatible materials.

Key Players and Collaborations

Identifying key players can reveal potential collaborators or competitors. For example, partnerships between pharmaceutical companies and biotech startups are common in this field.

Legal Vulnerabilities

Understanding the patent landscape also helps in identifying potential legal vulnerabilities. This includes analyzing the expiration dates of patents, patent disputes, and the strength of patent portfolios.

Case Study: Impact of US 5,498,421

Influence on Subsequent Patents

US 5,498,421 has influenced numerous subsequent patents in the biologic delivery field. Its claims and methods have been cited in various patents related to biocompatible materials and in vivo delivery systems.

Example Patents

For instance, later patents have built upon the concept of using hemoglobin-based compositions for oxygen delivery, expanding the scope to include other biologics and delivery mechanisms.

Conclusion

Understanding the scope and claims of United States Patent 5,498,421 provides valuable insights into the technological advancements in biologic delivery systems. A thorough patent landscape analysis around this patent can help inventors, researchers, and businesses make informed decisions about their intellectual property strategies.

Key Takeaways

  • Patent Scope: US 5,498,421 covers compositions and methods for in vivo delivery of biologics, including the use of hemoglobin and biocompatible materials.
  • Claims Analysis: The patent claims specific compositions and methods, which have been influential in subsequent patents.
  • Patent Landscape: Analyzing the patent landscape reveals trends, key players, and potential legal vulnerabilities in the biologic delivery field.
  • Data Visualization: Tools like heat maps and citation networks are essential for visualizing trends and interconnections among patents.
  • Strategic Insights: The analysis provides practical guidance for strategic decisions, including identifying innovation hotspots and potential collaborations.

FAQs

Q: What is the main focus of United States Patent 5,498,421?

A: The main focus is on compositions and methods for the in vivo delivery of biologics, particularly using hemoglobin and other biocompatible materials.

Q: How can I conduct a patent landscape analysis around this patent?

A: You can use databases like the USPTO's Patent Public Search tool, define relevant keywords, and organize patents by factors like filing date and assignee. Analyze citations and generate insights for strategic decisions.

Q: What are some key trends in the biologic delivery field?

A: Trends include advancements in nanotechnology, gene therapy, and the use of novel biocompatible materials. Key players often include pharmaceutical companies and biotech firms.

Q: How can I identify potential legal vulnerabilities in the patent landscape?

A: Analyze the expiration dates of patents, patent disputes, and the strength of patent portfolios to identify potential legal vulnerabilities.

Q: What tools are useful for visualizing patent trends and interconnections?

A: Tools like heat maps and citation networks are useful for visualizing trends, geographical distribution, and interconnections among patents.

Sources

  1. USPTO - Search for patents: https://www.uspto.gov/patents/search
  2. USPTO - Patents: https://www.uspto.gov/patents
  3. Goldstein Patent Law - How to Do Patent Landscape Analysis: https://www.goldsteinpatentlaw.com/how-to-patent-landscape-analysis/
  4. Google Patents - US5498421A: https://patents.google.com/patent/US5498421A/en

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Drugs Protected by US Patent 5,498,421

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 5,498,421

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 0961612 ⤷  Subscribe CA 2009 00036 Denmark ⤷  Subscribe
European Patent Office 0961612 ⤷  Subscribe 91613 Luxembourg ⤷  Subscribe
European Patent Office 0961612 ⤷  Subscribe 09C0050 France ⤷  Subscribe
European Patent Office 0961612 ⤷  Subscribe C00961612/01 Switzerland ⤷  Subscribe
European Patent Office 0961612 ⤷  Subscribe SZ 41/2009 Austria ⤷  Subscribe
European Patent Office 0961612 ⤷  Subscribe 441 Finland ⤷  Subscribe
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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