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Last Updated: December 22, 2024

Patent: 4,973,318


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Summary for Patent: 4,973,318
Title: Disposable syringe
Abstract:A disposable syringe includes first and second housing elements which are coupled together for rotation without axial movement therebetween. The first housing element receives a cartridge of a solution to be injected, and mounts a liquid outlet needle at its front end. A piston rod is disposed in the second housing element to move axially therein, and this piston rod includes a rod element and a nut element. The rod element is coupled to the first housing element to move axially therein without relative rotation therewith, and the nut element is threaded to the rod element for telescoping movement therewith and is configured to move axially in the second housing element without relative rotation therein. A pressure receiving element is mounted on the nut element. The housing, rod, nut and pressure receiving elements cooperate such that relative rotation between the housing elements in a selected direction causes relative rotation between the nut and rod elements and thereby increases the effective length of the piston rod and causes the pressure receiving element to extend from the second housing element. A protective cap is removably mounted over the first housing element and is configured to abut second housing element while mounted in place on the first housing element. This protective cap is engaged with the first housing element such that rotation of the cap with respect to the second housing element causes rotation of the first housing element with respect to the second housing element.
Inventor(s): Holm; Niels E. (Birkerod, DK), Spork; Allan (Lyngby, DK), Thogersen; Klaus (Klampenborg, DK), Bressendorff; Anders (Virum, DK), Rex; Jorn (Roskilde, DK)
Assignee: D.C.P. AF 1988 A/S (DK)
Application Number:07/308,399
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Analyzing the Claims and Patent Landscape of United States Patent 4,973,318

Introduction

United States Patent 4,973,318, often referred to as the Holm patent, describes a pen-shaped insulin injection system. This patent has been a subject of interest in various legal and technological discussions, particularly in the context of patent validity and the broader patent landscape. Here, we will delve into the claims of this patent, its significance, and the surrounding patent landscape.

Background of the Patent

The Holm patent, filed by Jens Holm, pertains to a pen-shaped insulin injection system designed for ease of use and patient comfort. This invention was significant in the field of diabetes management, as it provided a more user-friendly and discreet method for insulin administration compared to traditional syringes and vials.

Claims of the Patent

The patent claims describe a pen-shaped device with a cartridge containing insulin, a needle, and a mechanism for injecting the insulin. Key aspects include the design of the pen, the insulin cartridge, and the injection mechanism. However, the patent does not specify the needle gauge, which has been a point of contention in legal proceedings[1].

Legal Challenges and Validity

The Holm patent has been involved in several legal challenges, particularly regarding its validity. In a notable case, Novo Nordisk's patents (U.S. Patents No. 5,462,535 and No. 5,999,323) were challenged by Becton Dickinson, with the jury concluding that these Novo Nordisk patents were invalid due to obviousness. The Holm patent was cited as prior art, suggesting that the concept of a pen-shaped insulin injection system was not novel enough to warrant patent protection for the specific claims made by Novo Nordisk[1].

Obviousness

The court's decision hinged on the concept of obviousness, where it was argued that a person of ordinary skill in the field would have been motivated to combine existing teachings to produce the claimed device. The lack of specificity regarding the needle gauge in the Holm patent was a crucial factor, as it implied that using the smallest possible needle (e.g., 30 gauge) would be an obvious choice to reduce patient pain[1].

Patent Landscape Analysis

Geographical Spread

A patent landscape analysis for insulin injection systems reveals a global spread of innovations in this field. Companies from various regions, including Europe, North America, and Asia, have been actively filing patents related to insulin delivery systems. This geographical spread indicates a competitive and innovative environment where multiple players are vying for market share and technological advancements[3].

Saturation of Patent Space

The patent space for insulin injection systems is highly saturated. Numerous patents exist for different aspects of these systems, including pen designs, cartridge mechanisms, and needle technologies. This saturation makes it challenging for new entrants to secure broad patent claims, as prior art is extensive. Companies must conduct thorough patentability searches and landscape analyses to identify niche areas or innovative solutions that can be patented[3].

New Entrants and Market Dynamics

New entrants into the insulin delivery market often face significant barriers due to the existing patent landscape. However, there are opportunities in underappreciated niche areas. For instance, advancements in needle technology, such as thinner needles or pain-reducing features, can provide a competitive edge. Companies like Novo Nordisk and Becton Dickinson have been at the forefront of these innovations, but new players can still find room for innovation by focusing on specific, unaddressed needs in the market[3].

Strategic Insights from Patent Landscape Analysis

Identifying Opportunities

A comprehensive patent landscape analysis helps in identifying opportunities and risks. For example, if a company is considering developing a new insulin delivery system, the analysis would reveal the existing patents, the level of saturation, and potential gaps in the market. This information can guide decision-making on whether to invest in research and development in this area and how to navigate the complex patent landscape[3].

Time-Slicing and Trend Analysis

Time-slicing, or analyzing patent trends over time, can provide valuable insights into the evolution of technology in the field. For instance, a company might observe a shift from traditional syringe-based systems to pen-shaped devices and then to more advanced technologies like smart insulin pens. This analysis helps in understanding market trends and predicting future directions in innovation[3].

Impact of Recent Patent Law Changes

The Leahy-Smith America Invents Act (AIA)

The AIA, enacted in 2011, introduced significant changes to U.S. patent law, including the creation of the Patent Trial and Appeal Board (PTAB) and procedures like inter partes review (IPR) and post-grant review (PGR). These changes have made it easier and more efficient for parties to challenge the validity of patents, which can impact the patent landscape for insulin delivery systems. Companies must now consider these administrative challenges when strategizing their patent portfolios[2].

Subject Matter Eligibility

Recent guidance updates, such as the 2024 Guidance Update, have clarified the subject matter eligibility for AI and other emerging technologies. While the Holm patent does not involve AI, these updates highlight the importance of demonstrating practical applicability and technological advancements in patent claims. This emphasis can influence how future patents in the insulin delivery field are crafted and defended[5].

Key Takeaways

  • Patent Validity: The validity of patents like the Holm patent can be challenged based on obviousness and prior art.
  • Patent Landscape: The insulin delivery system patent space is highly saturated, requiring thorough landscape analysis to identify opportunities.
  • Geographical Spread: Innovations in insulin delivery systems are global, with multiple regions contributing to the patent landscape.
  • Strategic Insights: Comprehensive patent landscape analysis is crucial for making informed decisions about research, development, and patent prosecution.
  • Legal Changes: Recent changes in patent law, such as the AIA and subject matter eligibility guidelines, impact how patents are challenged and defended.

FAQs

What is the significance of the Holm patent in the context of insulin delivery systems?

The Holm patent is significant because it describes a pen-shaped insulin injection system, which was a major innovation in diabetes management. However, its lack of specificity regarding needle gauge has made it a point of contention in legal challenges.

How does the patent landscape analysis help in navigating the insulin delivery system market?

Patent landscape analysis helps in identifying existing patents, market saturation, and potential gaps. It guides companies in making strategic decisions about research, development, and patent prosecution.

What impact do recent patent law changes have on the patent landscape for insulin delivery systems?

Recent changes, such as the AIA and subject matter eligibility guidelines, make it easier to challenge patent validity through administrative procedures like IPR and PGR. This can affect how companies strategize their patent portfolios.

How can new entrants innovate in a highly saturated patent space like insulin delivery systems?

New entrants can innovate by focusing on underappreciated niche areas, such as advancements in needle technology or smart insulin pens. A thorough patent landscape analysis is essential to identify these opportunities.

What is the role of time-slicing in patent landscape analysis?

Time-slicing involves analyzing patent trends over time, which helps in understanding the evolution of technology and predicting future directions in innovation. This can guide companies in making long-term strategic decisions.

Sources

  1. Novo Nordisk A/s, Novo Nordisk of North America, Inc., and Novo Nordisk Inc. v. Becton Dickinson and Company, Justia.
  2. The Patent Trial and Appeal Board and Inter Partes Review, Congressional Research Service.
  3. Patent Landscape Analysis - Uncovering Strategic Insights, AcclaimIP.
  4. Search for patents - USPTO, United States Patent and Trademark Office.
  5. The Importance of Prong Two of Step 2A for AI Inventions, Baker Botts.

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Details for Patent 4,973,318

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Novo Nordisk Inc. NOVOLIN 70/30 insulin isophane human and insulin human Injection 019991 June 25, 1991 4,973,318 2008-02-10
Novo Nordisk Inc. NOVOLIN 70/30 insulin isophane human and insulin human Injection 019991 June 01, 2018 4,973,318 2008-02-10
Novo Nordisk Inc. LEVEMIR insulin detemir Injection 021536 June 16, 2005 4,973,318 2008-02-10
Novo Nordisk Inc. LEVEMIR insulin detemir Injection 021536 October 31, 2013 4,973,318 2008-02-10
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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