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Last Updated: March 22, 2025

Details for Patent: 4,816,456


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Summary for Patent: 4,816,456
Title: Administration of monoamine acridines in cholinergic neuronal deficit states
Abstract:A method for treating central nervous system or peripheral nervous system cholinergic deficit states such as Alzheimer's disease in a mammal, said method comprising administering to said mammal an amount of a monoamine acridine derivative effective in the treatment of a cholinergic deficit state and for a time sufficient to achieve a suitable blood level to treat said cholinergic deficit state. The preferred monoamine acridine derivative is 1,2,3,4-tetrahydro-5-aminoacridine. A unit dosage pharmaceutical composition of matter comprising an effective amount of said monoamine acridine derivative sufficient to treat said cholinergic deficit state and a pharmaceutically acceptable inert carrier therefor is also disclosed.
Inventor(s): Summers; William K. (Arcadia, CA)
Assignee:
Application Number:07/098,871
Patent Claim Types:
see list of patent claims
Use; Delivery; Composition; Compound; Dosage form;
Patent landscape, scope, and claims:

Understanding the Scope and Claims of United States Patent 4,816,456

Introduction

United States Patent 4,816,456, titled "Administration of monoamine acridines in cholinergic neuronal deficit states," is a patent that addresses a specific medical treatment involving monoamine acridines. To analyze the scope and claims of this patent, we need to delve into its key components, the legal framework surrounding it, and the broader patent landscape.

Patent Overview

The patent in question, US4816456A, involves the administration of monoamine acridines for treating cholinergic neuronal deficit states. This includes conditions such as Alzheimer's disease, where there is a deficiency in cholinergic neurotransmission.

Claims of the Patent

What are Patent Claims?

Patent claims define the scope of the invention and the rights granted to the patentee. They are the most critical part of a patent, as they delineate what is protected and what is not[1].

Specific Claims of US4816456A

The claims of US4816456A would typically include:

  • Composition Claims: These would specify the chemical composition of the monoamine acridines used in the treatment.
  • Method Claims: These would describe the methods of administering the monoamine acridines, including dosage, frequency, and any specific procedures.
  • Use Claims: These would outline the specific medical conditions for which the monoamine acridines are intended, such as cholinergic neuronal deficit states.

Scope of the Patent

Definition of Scope

The scope of a patent is determined by its claims. It defines the boundaries of what is protected and what is not, essentially the "metes and bounds" of the patentee's rights[1].

Scope of US4816456A

The scope of US4816456A would be limited to the specific administration of monoamine acridines for treating cholinergic neuronal deficit states. This means that any other uses or compositions not explicitly claimed would not be protected under this patent.

Legal Framework

Patent Term Extension

Under U.S. law, patents can be extended if they undergo regulatory review, such as FDA approval. However, the patent must claim the approved product or a method of using or manufacturing the approved product to be eligible for extension[1][5].

Eligibility for Extension

For US4816456A to be eligible for a patent term extension, it must claim the specific monoamine acridines or the method of their administration that was approved by the FDA. If the patent does not meet these criteria, it would not be eligible for extension.

Patent Landscape

Regulatory Review

Patents in the pharmaceutical sector often undergo extensive regulatory review before they can be marketed. This process can significantly delay the commercialization of the invention, which is why patent term extensions are available to compensate for this time[5].

Competitive Landscape

The patent landscape for treatments involving monoamine acridines would include other patents related to similar compounds and methods. Companies and researchers in this field must navigate these existing patents to avoid infringement and ensure their own innovations are protected.

Case Law and Precedents

Interpretation of Claims

The interpretation of patent claims is crucial and has been the subject of numerous court cases. For example, in the case of Hoechst-Roussel Pharmaceuticals Inc., the court emphasized that the term "claims" in patent legislation has a specific meaning and must be interpreted strictly. The patent must claim the FDA-approved product or method to be eligible for term extension[1].

Economic and Practical Considerations

Data and Research

The USPTO provides datasets and research on patent claims, which can help in understanding the trends and scope of patents in various fields. For instance, the Patent Claims Research Dataset includes detailed information on claims from U.S. patents granted between 1976 and 2014, which can be useful for analyzing the patent landscape[3].

Stakeholder Input and Public Policy

Small Claims Patent Court

There have been discussions and studies on the feasibility of a small claims patent court to address the needs of smaller entities and individuals in patent disputes. This reflects broader policy considerations aimed at making the patent system more accessible and efficient[2].

Key Takeaways

  • Claims Define Scope: The claims of a patent are crucial in defining its scope and the rights granted to the patentee.
  • Eligibility for Extension: For a patent to be eligible for term extension, it must claim the FDA-approved product or method.
  • Regulatory Review: Patents in the pharmaceutical sector often undergo extensive regulatory review, which can impact their commercialization and eligibility for term extension.
  • Competitive Landscape: Understanding the existing patent landscape is essential for innovators to avoid infringement and protect their own innovations.
  • Economic Considerations: Patent data and research can provide valuable insights into trends and the scope of patents in various fields.

FAQs

Q: What are the key components of a patent claim? A: Patent claims include composition claims, method claims, and use claims, which together define the scope of the invention.

Q: How is the scope of a patent determined? A: The scope of a patent is determined by its claims, which set the boundaries of what is protected.

Q: Can a patent be extended if it undergoes FDA approval? A: Yes, but the patent must claim the FDA-approved product or a method of using or manufacturing the approved product to be eligible for extension.

Q: What is the significance of the Hoechst-Roussel Pharmaceuticals Inc. case in patent law? A: This case emphasizes the strict interpretation of the term "claims" in patent legislation and the necessity for the patent to claim the FDA-approved product or method for term extension.

Q: How does the USPTO support research on patent claims? A: The USPTO provides datasets such as the Patent Claims Research Dataset, which includes detailed information on claims from U.S. patents, to support research and analysis.

Sources:

  1. 109 F.3d 756: The Commissioner contends that Hoechst is not entitled to have the term of the '286 patent extended...
  2. U.S. Patent Small Claims Court: The USPTO engaged ACUS to conduct an independent study of issues associated with and options for designing a small claims patent court.
  3. Patent Claims Research Dataset - USPTO: The Patent Claims Research Dataset contain detailed information on claims from US patents granted between 1976 and 2014...
  4. US4816456A - Administration of monoamine acridines in cholinergic neuronal deficit states: Google Patents.
  5. Patent and Trademark Office - USPTO: The application states that the patent claims an approved product that was subject to regulatory review under Section 505 of the Federal Food...

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Drugs Protected by US Patent 4,816,456

ApplicantTradenameGeneric NameDosageNDAApproval DateTETypeRLDRSPatent No.Patent ExpirationProductSubstanceDelist Req.Patented / Exclusive UseSubmissiondate
No data available in table
>Applicant>Tradename>Generic Name>Dosage>NDA>Approval Date>TE>Type>RLD>RS>Patent No.>Patent Expiration>Product>Substance>Delist Req.>Patented / Exclusive Use>Submissiondate
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International Family Members for US Patent 4,816,456

CountryPatent NumberEstimated ExpirationSupplementary Protection CertificateSPC CountrySPC Expiration
Australia 621035 ⤷  Try for Free
Australia 671933 ⤷  Try for Free
Australia 7888694 ⤷  Try for Free
Australia 8070787 ⤷  Try for Free
Austria 106245 ⤷  Try for Free
Canada 1335813 ⤷  Try for Free
European Patent Office 0328535 ⤷  Try for Free 96C0021 Belgium ⤷  Try for Free
>Country>Patent Number>Estimated Expiration>Supplementary Protection Certificate>SPC Country>SPC Expiration
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