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Last Updated: December 23, 2024

Details for Patent: 4,278,654


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Summary for Patent: 4,278,654
Title: Process for the preparation of a sterile injectable physiologically acceptable solution of an X-ray contrast agent and solutions of the X-ray contrast agent and a buffer
Abstract:Sterile, injectable, physiologically acceptable solutions of an X-ray contrast agent are prepared by autoclaving a solution of a m-carboxamido-o-iodo-N-(.beta.-hydroxyalkyl)aniline X-ray contrast agent in the presence of a physiologically acceptable buffer system the pH of which decreases with increasing temperature. The presence of a temperature dependent buffer, preferably an amine, enables X-ray contrast agents to be sterilized by autoclaving without significant decomposition. Examples of the autoclaving processes are given and solutions for autoclaving containing a m-carboxamido-o-iodo-N-(.beta.-hydroxyalkyl)aniline X-ray contrast agent and a physiologically acceptable buffer system the pH of which decreases with increasing temperature are described and claimed.
Inventor(s): Rakli; Fridtjov B. (Oslo, NO), Kelly; Michael J. (Oslo, NO)
Assignee: Nyegaard & Co. A/S (Oslo, NO)
Application Number:06/054,440
Patent Claim Types:
see list of patent claims
Compound; Process;
Patent landscape, scope, and claims:

Understanding the Scope and Claims of United States Patent 4,278,654

Introduction

United States Patent 4,278,654 is a significant patent that has had an impact on the pharmaceutical industry. To delve into its specifics, it is crucial to analyze the patent's scope, claims, and the broader patent landscape it operates within.

Patent Overview

Patent 4,278,654 was granted for a specific pharmaceutical invention, but the details of the patent itself are not provided in the sources. However, we can infer some general principles and apply them to understand how such a patent would be analyzed.

Scope of the Patent

The scope of a patent is defined by its claims, which are the legally binding descriptions of the invention. Here are some key aspects to consider:

Claim Language and Scope

The scope of a patent is heavily influenced by the language used in its claims. Research has shown that narrower claims at publication are associated with a higher probability of grant and a shorter examination process than broader claims[3].

Independent Claim Length and Count

Metrics such as independent claim length and independent claim count can be used to measure patent scope. These metrics have explanatory power for several correlates of patent scope, including patent maintenance payments, forward citations, and the breadth of patent classes[3].

Claims Analysis

Types of Claims

Patent claims can be categorized into independent and dependent claims. Independent claims stand alone and define the invention, while dependent claims refer back to and further limit the independent claims.

Claim Construction

The construction of claims is critical in determining the patent's scope. Claims must be clear and definite to avoid ambiguity and potential litigation. For example, the USPTO's 2024 guidance update on AI patents emphasizes the importance of integrating judicial exceptions into practical applications to ensure patent eligibility[4].

Patent Landscape

Approval Rates

The probability of receiving a U.S. patent varies significantly depending on the technology field. For instance, the allowance rate for patent applications has decreased over time, particularly in fields like "Drugs and Medical Instruments" and "Computers and Communications"[1].

Technology Fields

Patents in the pharmaceutical sector, such as Patent 4,278,654, fall under specific technology fields. The USPTO categorizes these into broad fields like "Drugs and Medical Instruments," which helps in analyzing the patent landscape and competition within these areas[1].

Patent Eligibility

Subject Matter Eligibility

The eligibility of a patent is determined by whether the claimed invention falls within the scope of patentable subject matter. The USPTO's guidance updates, such as those related to AI, emphasize the need to integrate abstract ideas into practical applications to meet eligibility criteria[4].

Recent Case Law and Guidance

The USPTO's guidance and recent Federal Circuit decisions play a crucial role in determining patent eligibility. For example, the 2024 update includes new examples specifically tailored to AI technologies, which can be applied analogously to other fields to ensure clarity and consistency in patent eligibility analysis[4].

Real-World Applications

Practical Applications

To be patent-eligible, claims must demonstrate a practical application that provides concrete benefits or solves specific problems in the relevant field. This is illustrated by examples in the USPTO's guidance, where claims involving specific applications of technologies, such as real-time speech recognition systems, are considered patent-eligible because they provide tangible outcomes[4].

Statistical Insights

Allowance Rates

Only about 55.8% of patent applications filed at the USPTO between 1996 and mid-2013 emerged as patents without using continuation procedures. This rate has decreased over time, especially in certain technology fields[1].

Continuation Procedures

The use of continuation procedures can significantly impact the patent landscape. These procedures allow applicants to file related applications, which can affect the overall allowance rate and the complexity of the examination process[1].

Industry Impact

Innovation and Litigation

The quality and scope of patents can influence innovation and litigation within an industry. Patents with overly broad claims or decreased clarity can lead to increased licensing and litigation costs, potentially diminishing incentives for innovation[3].

Key Takeaways

  • Claim Construction: Clear and definite claim language is crucial for determining the patent's scope and avoiding ambiguity.
  • Patent Eligibility: Claims must integrate abstract ideas into practical applications to meet patent eligibility criteria.
  • Technology Fields: The patent landscape varies significantly across different technology fields, with specific challenges and trends in each.
  • Real-World Applications: Demonstrating practical applications that provide concrete benefits is essential for patent eligibility.
  • Statistical Insights: Understanding the allowance rates and the impact of continuation procedures can help in navigating the patent system.

FAQs

  1. What is the significance of claim language in patent scope? Claim language, particularly the length and count of independent claims, plays a crucial role in defining the patent's scope and influencing its probability of grant and examination process duration[3].

  2. How has the USPTO's guidance on AI patents impacted the patent landscape? The USPTO's 2024 guidance update on AI patents has refined the process for determining patent eligibility, emphasizing the integration of judicial exceptions into practical applications and providing new examples tailored to AI technologies[4].

  3. What are the main challenges in the pharmaceutical patent field? The pharmaceutical patent field faces challenges such as decreasing allowance rates, the need for clear and definite claim language, and the integration of abstract ideas into practical applications to ensure patent eligibility[1][3].

  4. How do continuation procedures affect the patent examination process? Continuation procedures can complicate the examination process and affect the overall allowance rate by allowing applicants to file related applications, which can extend the examination period and increase the complexity of the process[1].

  5. What role does recent case law play in patent eligibility analysis? Recent case law, as integrated into the USPTO's guidance, provides up-to-date legal standards and interpretations that help promote consistency and clarity in the application of patent eligibility criteria[4].

Sources

  1. Carley, M., Hegde, D., & Marco, A. (2015). What Is the Probability of Receiving a US Patent? Yale Journal of Law & Technology, 17, 203-236.
  2. DrugPatentWatch. (n.d.). Patent 4,278,654.
  3. SSRN. (2016). Patent Claims and Patent Scope.
  4. Mintz. (2024). Understanding the 2024 USPTO Guidance Update on AI Patent.

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Drugs Protected by US Patent 4,278,654

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

Foreign Priority and PCT Information for Patent: 4,278,654

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom28764/78Jul 4, 1978

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