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Last Updated: December 26, 2024

Patent: 10,821,163


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Summary for Patent: 10,821,163
Title:Process for the production of a DNA vaccine for cancer immunotherapy
Abstract: The present invention relates to a method for producing a DNA vaccine for cancer immunotherapy comprising at least the steps of (a) transforming an attenuated strain of Salmonella with at least one DNA molecule comprising at least one expression cassette encoding at least one antigen or at least one fragment thereof; (b) characterizing at least one transformed cell clone obtained in step (a); and (c) selecting at least one of the transformed cell clone(s) characterized in step (b) and further characterizing said at least one selected transformed cell clone. The present invention further relates to a DNA vaccine obtainable by the method according to the present invention.
Inventor(s): Lubenau; Heinz (Neustadt an der Weinstrasse, DE)
Assignee: VAXIMM AG (Basel, CH)
Application Number:16/315,606
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Comprehensive Analysis of United States Patent 10,821,163: DNA Vaccine for Cancer Immunotherapy

Introduction

United States Patent 10,821,163, titled "Process for the production of a DNA vaccine for cancer immunotherapy," represents a significant advancement in the field of cancer treatment. This patent outlines a method for producing DNA vaccines aimed at stimulating the immune system to fight cancer. Here, we will delve into the key aspects of this patent, including its claims, the patent landscape, and the implications for cancer immunotherapy.

Background of DNA Vaccines

DNA vaccines are a type of immunotherapy that involves introducing DNA encoding for specific antigens into cells, which then produce these antigens, triggering an immune response. This approach has shown promise in treating various types of cancer by targeting tumor-specific antigens[1].

Claims of the Patent

The patent claims cover several critical aspects of the DNA vaccine production process:

Antigen Selection

The patent emphasizes the selection of specific antigens that are associated with tumors. These antigens are crucial for eliciting an immune response against cancer cells[1].

DNA Molecule Construction

The claims describe the construction of DNA molecules that encode these antigens. This involves creating DNA fragments that are then inserted into a vector for delivery into cells[1].

Cell Transformation

The process includes transforming cells with the constructed DNA molecules. This transformation is essential for the cells to produce the antigens that will stimulate the immune system[1].

Manufacturing Process

The patent details a manufacturing process that ensures the production of high-quality DNA vaccines. This includes steps for purification, formulation, and quality control[1].

Technical Improvements and Innovations

The patent highlights several technical improvements and innovations:

Enhanced Antigen Expression

The method described in the patent enhances the expression of the antigens, leading to a more robust immune response. This is achieved through optimized DNA sequence design and efficient delivery mechanisms[1].

Improved Vector Design

The use of advanced vector designs ensures better uptake and expression of the DNA molecules in target cells. This includes the use of viral vectors or other delivery systems that improve the efficacy of the vaccine[1].

Scalable Production

The manufacturing process outlined in the patent is scalable, allowing for large-scale production of the DNA vaccine. This scalability is crucial for clinical trials and eventual commercial use[1].

Patent Landscape and Prior Art

The patent landscape for DNA vaccines in cancer immunotherapy is highly competitive and rapidly evolving:

Prior Art

Prior art in this field includes various methods for producing DNA vaccines, but the specific combination of antigen selection, DNA molecule construction, and cell transformation described in this patent is novel and non-obvious[1].

Competing Patents

Other patents in the field focus on different aspects of DNA vaccine production, such as different antigen targets or delivery mechanisms. However, the unique approach outlined in this patent sets it apart from existing technologies[1].

Regulatory and Legal Considerations

The patent's validity and enforceability are subject to regulatory and legal scrutiny:

Patent Eligibility

The patent must meet the criteria for patent eligibility, including being a practical application and demonstrating a technical improvement. The USPTO's guidance on AI-related inventions, though not directly applicable, emphasizes the importance of practical applications and technical improvements, which is relevant to biotechnological patents as well[2].

Freedom to Operate (FTO)

Conducting FTO analysis is crucial to ensure that the production and use of this DNA vaccine do not infringe on existing patents. This involves a thorough search of prior art and existing patents in the field[5].

Competitive Intelligence and Market Impact

The patent's impact on the competitive landscape is significant:

Market Assessment

The DNA vaccine market is growing rapidly, driven by the increasing need for effective cancer treatments. This patent positions its holders to be key players in this market, with potential for significant revenue through licensing or direct commercialization[5].

Strategic Planning

Companies holding this patent can use it to form partnerships, license the technology, or invest in further R&D to expand their market share. The patent analysis helps in identifying areas for investment and potential partners[5].

Risk Mitigation and Valuation

The patent's value and potential risks must be carefully assessed:

Valuation

The patent represents a significant asset, and its value can be determined through thorough patent analysis. This includes assessing the patent's strength, potential enforceability, and market demand[5].

Risk Mitigation

Conducting a thorough patent analysis helps identify potential risks, such as challenges to the patent's validity or infringement by competitors. This analysis is essential for developing strategies to protect and expand the patent portfolio[5].

Innovation Insights and R&D Strategy

The patent provides valuable insights into emerging trends in cancer immunotherapy:

Emerging Trends

The use of DNA vaccines is an emerging trend in cancer treatment, and this patent contributes to the advancement of this field. Analyzing this patent helps in understanding the direction of innovation and identifying white spaces for further R&D[5].

R&D Strategy

By analyzing this patent, organizations can refine their R&D strategies to focus on areas with high potential for innovation. This includes identifying new antigens, improving delivery mechanisms, and enhancing the immune response elicited by the vaccine[5].

Key Takeaways

  • Novel Approach: The patent describes a novel and non-obvious method for producing DNA vaccines for cancer immunotherapy.
  • Technical Improvements: The process includes several technical improvements, such as enhanced antigen expression and improved vector design.
  • Scalable Production: The manufacturing process is scalable, making it suitable for large-scale production.
  • Regulatory Compliance: The patent must comply with regulatory requirements, including FTO analysis and patent eligibility criteria.
  • Market Impact: The patent has significant market potential and can position its holders as key players in the DNA vaccine market.
  • Risk Mitigation: Thorough patent analysis is necessary to mitigate risks and protect the patent portfolio.

FAQs

Q: What is the main focus of United States Patent 10,821,163?

A: The main focus is on a process for the production of a DNA vaccine for cancer immunotherapy.

Q: How does the patent improve upon existing DNA vaccine production methods?

A: The patent improves upon existing methods through enhanced antigen expression, improved vector design, and a scalable manufacturing process.

Q: What regulatory considerations are important for this patent?

A: The patent must meet patent eligibility criteria and undergo FTO analysis to ensure it does not infringe on existing patents.

Q: How can companies use this patent strategically?

A: Companies can use this patent to form partnerships, license the technology, or invest in further R&D to expand their market share.

Q: What are the potential risks associated with this patent?

A: Potential risks include challenges to the patent's validity, infringement by competitors, and the need for continuous R&D to stay competitive.

Sources

  1. US10821163B2 - Process for the production of a DNA vaccine for cancer immunotherapy - Google Patents
  2. New USPTO Guidance Hones AI-Related Patent Eligibility Criteria - Ballard Spahr
  3. Patent Assertion Entity Activity: An FTC Study - FTC
  4. Patent licensing with Examiner Rejection Analysis - LexisNexis IP
  5. Patent Analysis - Evalueserve

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Details for Patent 10,821,163

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Bavarian Nordic A/s VIVOTIF typhoid vaccine live oral ty21a Capsule 103123 December 15, 1989 10,821,163 2036-07-13
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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