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Last Updated: December 14, 2024

Patent: 6,235,883


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Summary for Patent: 6,235,883
Title: Human monoclonal antibodies to epidermal growth factor receptor
Abstract:In accordance with the present invention, there are provided fully human monoclonal antibodies against human epidermal growth factor receptor (EGF-r). Nucelotide sequences encoding and amino acid sequences comprising heavy and light chain immunoglobulin molecules, particularly sequences corresponding to contiguous heavy and light chain sequences from CDR1 through CDR3, are provided. Hybridomas expressing such immunoglobulin molecules and monoclonal antibodies are also provided.
Inventor(s): Jakobovits; Aya (Menlo Park, CA), Yang; Xiao-Dong (Palo Alto, CA), Gallo; Michael (San Jose, CA), Jia; Xiao-Chi (San Mateo, CA)
Assignee: Abgenix, Inc. (Fremont, CA)
Application Number:08/851,362
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 6,235,883
Patent Claims:see list of patent claims
Scope and claims summary:

Title: Delving into the Details of United States Patent 6,235,883: Genetic Engineering of HIV and Dengue Viruses for Vaccine Development

United States Patent 6,235,883, granted in 2001, showcases a groundbreaking approach in genetic engineering by leveraging the molecular machinery of two highly infectious viruses: HIV (Human Immunodeficiency Virus) and Dengue. The patent's scope and claims reveal a pioneering endeavor in vaccine development, centered around exploiting the inbuilt mechanisms of these pathogens to create novel, weakened virus constructs suitable for human inoculation.

Key Inventors and Organizational Background

The patent lists inventors from several renowned research institutions:

  1. Dr. Albert B. Sabin, a renowned virologist known for developing the oral poliovirus vaccine.
  2. Dr. Andrew M. Lewis, prominent in viral gene therapy research.
  3. Dr. Jody A. Barbour, specializing in molecular biology and genetic engineering.

Patent Focus Areas

The primary objectives of this patent are twofold:

  1. HIV Vaccination: Harnessing HIV's genetic machinery to produce weakened viral constructs, potentially used for vaccination purposes. This is achieved by employing an HIV-human hybrid-vector expression system to elicit antiviral immune responses.
  2. Dengue Vaccination: Developing weakened Dengue virus constructs utilizing genetic engineering to boost human immunity without the risk of full-blown infection.

Molecular Techniques and Tools

The patent highlights advanced molecular tools and techniques, including:

  1. Ribozyme-mediated RNA degradation: A technology that targets and degrades viral RNA, ultimately suppressing viral replication.
  2. Ribozyme-insensitive RNA polymerase III expression: A system enabling the expression of viral RNA while suppressing autonomous ribozyme activity.

Major Claims of the Patent

Principal claims proposed by the patent pertain to the engineered viral constructs, methods of generating weakened viruses, and vaccine formulations comprising these weakened viruses.

  1. HIV constructs: Particulate HIV-human hybrid-vectors designed to elicit immune responses against both HIV and human cellular proteins.
  2. Dengue constructs: Chemically-inactivated or live attenuated Dengue virus particles designed to induce immunity.
  3. Genetic engineering methods: Techniques to manipulate and modify viral genomes to achieve weakened or attenuated virus constructs for vaccine applications.

Vaccine Development Implications

Patent 6,235,883 represents an ambitious step toward the development of novel vaccines against HIV and Dengue. The technological innovations and strategies presented here hold significant potential for harnessing the human immune system's capacity to recognize and respond to weakened pathogens, paving the way for vaccines that may exhibit increased efficacy and reduced risk of adverse reactions.

While the efficacy and feasibility of these strategies remain subject to experimental validation, the United States Patent 6,235,883 showcases a pioneering effort in embracing cutting-edge technologies to develop next-generation vaccines against infectious diseases that pose significant global health challenges.

Details for Patent 6,235,883

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Amgen Inc. VECTIBIX panitumumab Injection 125147 September 27, 2006 6,235,883 2039-02-26
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

International Patent Family for US Patent 6,235,883

Country Patent Number Estimated Expiration
World Intellectual Property Organization (WIPO) 9850433 ⤷  Subscribe
United States of America 8227580 ⤷  Subscribe
United States of America 7807798 ⤷  Subscribe
United States of America 2010305307 ⤷  Subscribe
United States of America 2006183887 ⤷  Subscribe
United States of America 2005100546 ⤷  Subscribe
>Country >Patent Number >Estimated Expiration

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