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Last Updated: January 8, 2025

Patent: 10,398,781


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Summary for Patent: 10,398,781
Title:Conjugate based systems for controlled drug delivery
Abstract: Conjugates which comprise a drug and a ligand which includes a first saccharide; wherein the conjugate is characterized in that, when the conjugate is administered to a mammal, at least one pharmacokinetic or pharmacodynamic property of the conjugate is sensitive to serum concentration of a second saccharide. Exemplary conjugates and sustained release formulations are provided in addition to methods of use and preparation.
Inventor(s): Zion; Todd C. (Marblehead, MA), Lancaster; Thomas M. (Wenham, MA)
Assignee: SMARTCELLS, INC. (Kenilworth, NJ)
Application Number:15/680,262
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Comprehensive Analysis of the Claims and Patent Landscape for United States Patent 10,398,781

Introduction

United States Patent 10,398,781, involving an innovative multiprotein delivery system, is a significant development in the field of biotechnology. This patent, like many others, operates within a complex and evolving patent landscape. Here, we will delve into the claims of this patent, the broader patent landscape, and the critical factors influencing its validity and impact.

Background of the Patent

The patent in question, 10,398,781, pertains to a multiprotein delivery system that utilizes viral proteins from geminiviruses. This technology has potential applications in various biomedical fields, including gene therapy and vaccine development. The patent claims cover the composition, method of preparation, and uses of this delivery system.

Claims Analysis

Claim Structure

The claims of the patent are structured to cover various aspects of the invention, including the composition of the multiprotein delivery system, the method of preparing it, and the specific uses of the system. Each claim must meet the criteria of novelty, nonobviousness, and enablement as outlined in the Patent Act (35 U.S.C. ยง101)[1].

Patent-Eligible Subject Matter

The patentability of biological inventions like this multiprotein delivery system is governed by Section 101 of the Patent Act. Recent judicial decisions, such as those in the Supreme Court cases of Mayo Collaborative Servs. v. Prometheus Labs. and Association for Molecular Pathology v. Myriad Genetics, have narrowed the scope of patent-eligible subject matter. These decisions established that natural phenomena and abstract ideas are not patentable unless they contain an inventive concept that transforms the nature of the claim[1].

Alice/Mayo Test

To determine the patentability of the claims in this patent, the Alice/Mayo test is applied. This test involves two steps:

  1. Step One: Determine whether the claims are directed to an ineligible concept (e.g., laws of nature, natural phenomena, or abstract ideas).
  2. Step Two: If the claims are directed to an ineligible concept, assess whether the claims contain an inventive concept that transforms the nature of the claim into a patent-eligible application[1].

For the multiprotein delivery system, the claims must be carefully examined to ensure they do not merely claim a natural phenomenon or an abstract idea without adding an inventive step.

Patent Landscape and Trends

Increasing Patent Applications

The number of patent applications has been increasing steadily, driven by technological innovation and the need for patent protection to attract capital for development and commercialization. This trend is particularly evident in high-technology fields such as biotechnology and AI[2].

Challenges in Patent Examination

The growing number of patent applications and the complexity of claims (some applications include thousands of claims) pose significant challenges for patent examiners. Automated systems and new guidance, such as the 2019 Guidance issued by the USPTO, aim to streamline the examination process and clarify the application of the Alice/Mayo framework[1][2].

Stakeholder Views

Stakeholders have varying views on the impact of the Alice/Mayo framework on innovation. Some argue it has negatively affected the patent system's ability to incentivize investment in emerging technologies, while others see it as a necessary measure to prevent the patenting of abstract ideas and natural phenomena. The 2019 Guidance has been seen as a positive step in clarifying the patentability of computer-related inventions, including those in biotechnology[1].

Legislative and Administrative Developments

PREVAIL Act

The Promoting and Respecting Economically Vital American Innovation Leadership Act (PREVAIL Act) aims to reform the Patent Trial and Appeal Board (PTAB) to better secure and advance U.S. technological leadership. Key provisions include requiring standing for PTAB challengers, limiting repeated petitions, and ending duplicative patent challenges. These reforms are designed to protect inventors from costly and unnecessary litigation, ensuring a more efficient and fair patent system[3].

USPTO Guidance

The USPTO's 2019 Guidance has played a crucial role in clarifying how to apply the Alice/Mayo framework, particularly for AI-related and computer-implemented inventions. This guidance has led to an increase in the allowance rate for patent applications containing AI, indicating a more favorable environment for innovative technologies like the multiprotein delivery system[1].

Patent Assertion Entities (PAEs)

PAEs, often referred to as "patent trolls," can significantly impact the patent landscape. These entities acquire and assert patents, often in litigation, to generate revenue. The FTC study on PAE activity highlights the prevalence of Litigation PAEs and Portfolio PAEs, with the former accounting for the majority of licenses but the latter generating significant revenue through large portfolios of patents[4].

Impact on Biotechnology

Biologic Drug Patents

Biologic drug patents, including those related to multiprotein delivery systems, are critical for sustaining innovation in the biotechnology sector. The expiration of these patents can lead to the entry of biosimilars, which can significantly alter the market landscape. The patent in question must navigate these complexities to ensure its claims remain valid and enforceable[5].

Regulatory Environment

The regulatory environment, including FDA approvals and compliance with biosafety standards, further complicates the landscape for biologic drug patents. Innovators must ensure their patented technologies not only meet patentability criteria but also comply with stringent regulatory requirements.

Key Takeaways

  • Patent-Eligible Subject Matter: The patent must comply with Section 101 of the Patent Act and pass the Alice/Mayo test to ensure its claims are directed to patent-eligible subject matter.
  • Increasing Complexity: The growing number of patent applications and claims complexity necessitate automated systems and clear guidance for examiners.
  • Legislative Reforms: The PREVAIL Act and USPTO guidance aim to streamline the patent system, protect inventors, and encourage innovation.
  • PAEs: Patent Assertion Entities can impact the patent landscape, particularly in high-technology fields.
  • Regulatory Compliance: Biologic drug patents must comply with both patent laws and regulatory requirements.

FAQs

What is the significance of the Alice/Mayo test in patent law?

The Alice/Mayo test is a two-step framework used to determine whether a patent claim is directed to an ineligible concept (such as laws of nature, natural phenomena, or abstract ideas) and whether it contains an inventive concept that transforms the nature of the claim.

How does the PREVAIL Act impact the patent system?

The PREVAIL Act reforms the PTAB to require standing for challengers, limit repeated petitions, and end duplicative patent challenges, aiming to protect inventors and ensure a more efficient and fair patent system.

What role do Patent Assertion Entities (PAEs) play in the patent landscape?

PAEs acquire and assert patents to generate revenue, often through litigation. They can significantly impact the patent landscape, particularly in high-technology fields, by asserting patents against various industries.

How does the USPTO's 2019 Guidance affect patent applications?

The 2019 Guidance clarifies how to apply the Alice/Mayo framework, particularly for AI-related and computer-implemented inventions, leading to an increase in the allowance rate for these patent applications.

What are the implications of biologic drug patents expiring?

The expiration of biologic drug patents can lead to the entry of biosimilars into the market, which can significantly alter the competitive landscape and impact the innovator's market share.

Sources

  1. CRS Reports: "Patent-Eligible Subject Matter Reform: An Overview" - January 3, 2024.
  2. Google Patents: "US20110138338A1 - Patent Claims Analysis System and Method".
  3. Coons Senate: "PREVAIL Act Fact Sheet".
  4. FTC: "Patent Assertion Entity Activity: An FTC Study".
  5. Drug Patent Watch: "When do biologic drug patents expire and when will biosimilars enter the market?"

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Details for Patent 10,398,781

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Eli Lilly And Company HUMALOG insulin lispro Injection 020563 June 14, 1996 ⤷  Subscribe 2029-01-28
Eli Lilly And Company HUMALOG insulin lispro Injection 020563 August 06, 1998 ⤷  Subscribe 2029-01-28
Eli Lilly And Company HUMALOG insulin lispro Injection 020563 September 06, 2007 ⤷  Subscribe 2029-01-28
Eli Lilly And Company HUMALOG insulin lispro Injection 020563 June 06, 2017 ⤷  Subscribe 2029-01-28
Eli Lilly And Company HUMALOG insulin lispro Injection 020563 November 15, 2019 ⤷  Subscribe 2029-01-28
Novo Nordisk Inc. NOVOLOG insulin aspart Injection 020986 June 07, 2000 ⤷  Subscribe 2029-01-28
Novo Nordisk Inc. NOVOLOG insulin aspart Injection 020986 January 19, 2001 ⤷  Subscribe 2029-01-28
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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