United States Patent 5,466,699: A Detailed Analysis of Scope, Claims, and Patent Landscape
Introduction
United States Patent 5,466,699, titled "Indolyl compounds for treating migraine," was granted on November 14, 1995. This patent is significant in the pharmaceutical industry, particularly in the treatment of migraines. Here, we will delve into the scope, claims, and the broader patent landscape surrounding this invention.
Patent Overview
Invention Description
The patent describes a class of indolyl compounds designed for the treatment of migraine. These compounds are characterized by specific chemical structures and formulations that target the relief of migraine symptoms. The invention includes various chemical compounds, their synthesis methods, and their application in pharmaceutical formulations[4].
Publication and Legal Status
The patent was published on November 14, 1995, and its legal status is listed as expired, indicating that the patent's lifetime has ended, and the invention is now in the public domain[4].
Scope of the Patent
Chemical Compounds
The patent focuses on indolyl compounds, specifically those with a formula (I), where n is an integer from 0 to 3, and W is a group of specific chemical structures. These compounds are designed to be effective in treating migraines by interacting with serotonin receptors, a common target for migraine therapies[4].
Pharmaceutical Formulations
The patent includes descriptions of various pharmaceutical formulations that incorporate these indolyl compounds. These formulations can be in the form of capsules, tablets, or other delivery methods, ensuring the compounds are effectively administered to patients[4].
Claims of the Patent
Independent and Dependent Claims
The patent contains 15 claims, which are divided into independent and dependent claims. Independent claims define the broad scope of the invention, while dependent claims narrow down the scope by adding specific details or limitations.
- Independent Claims: These claims define the core invention, including the chemical structure of the indolyl compounds and their use in treating migraines.
- Dependent Claims: These claims specify additional features, such as particular chemical groups, synthesis methods, and pharmaceutical formulations[4].
Claim Examples
- Claim 1: "A compound of formula (I), wherein n is an integer of from 0 to 3; W is a group of formula (i), (ii), or (iii)..."
- Claim 5: "A pharmaceutical composition comprising a compound of claim 1 and a pharmaceutically acceptable carrier."
These claims collectively define the scope of protection for the invention, ensuring that any similar compounds or formulations would infringe on this patent during its lifetime[4].
Patent Landscape
Prior Art and Cited References
The patent cites several prior art references, including other patents and scientific literature related to migraine treatments and indolyl compounds. This indicates that the inventors built upon existing knowledge in the field to develop their unique compounds and formulations[4].
Global Patent Family
To understand the global reach of this invention, one would need to search international patent databases such as those provided by the European Patent Office (EPO), Japan Patent Office (JPO), and the World Intellectual Property Organization (WIPO)[1].
Competing Patents and Technologies
The patent landscape in the field of migraine treatments is complex, with numerous patents covering various aspects of migraine therapy. Other patents may cover different classes of compounds, delivery methods, or treatment regimens. For example, patents like US5962486, which also deal with migraine treatments, highlight the competitive nature of this field[5].
Search and Analysis Tools
USPTO Resources
To conduct a thorough analysis of this patent and its landscape, one can use resources provided by the United States Patent and Trademark Office (USPTO), such as the Patent Public Search tool, Global Dossier, and the Patent and Trademark Resource Centers (PTRCs)[1].
International Databases
Searching international databases like esp@cenet (EPO), PATENTSCOPE (WIPO), and other national patent offices' databases can provide a comprehensive view of the global patent landscape related to migraine treatments[1].
Economic and Research Implications
Patent Claims Research Dataset
The USPTO's Patent Claims Research Dataset can provide insights into the scope and trends of patent claims, including those related to pharmaceutical inventions. This dataset can help in understanding the broader trends in patenting within the pharmaceutical sector[3].
Economic Impact
The expiration of this patent allows other companies to develop and market similar compounds, potentially increasing competition and reducing costs for migraine treatments. This can have significant economic implications, including lower drug prices and increased accessibility to migraine therapies.
Key Takeaways
- Patent Scope: The patent covers specific indolyl compounds and their pharmaceutical formulations for treating migraines.
- Claims: The patent includes 15 claims that define the invention's scope, with a mix of independent and dependent claims.
- Patent Landscape: The invention is part of a broader landscape of migraine treatments, with competing patents and technologies.
- Search and Analysis: Utilizing USPTO resources and international databases is crucial for a comprehensive analysis.
- Economic Implications: The patent's expiration can lead to increased competition and lower drug prices.
FAQs
Q: What is the primary focus of United States Patent 5,466,699?
A: The primary focus is on indolyl compounds designed for the treatment of migraines.
Q: How many claims are included in this patent?
A: The patent includes 15 claims.
Q: What is the current legal status of this patent?
A: The patent is listed as expired, meaning it is now in the public domain.
Q: Where can one find additional information about similar patents?
A: Resources such as the USPTO's Patent Public Search tool, Global Dossier, and international patent databases like esp@cenet and PATENTSCOPE can be used.
Q: What are the potential economic implications of this patent's expiration?
A: The expiration can lead to increased competition, potentially reducing drug prices and increasing accessibility to migraine treatments.
Sources
- USPTO: Search for patents - USPTO
- ACUS: U.S. Patent Small Claims Court
- USPTO: Patent Claims Research Dataset
- Google Patents: US5466699A - Indolyl compounds for treating migraine
- Google APIs: United States Patent (19) - googleapis.com
