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Last Updated: April 3, 2025

Details for Patent: 5,232,438


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Summary for Patent: 5,232,438
Title: Membrane for electrotransport transdermal drug delivery
Abstract:A membrane capable of inhibiting agent release from a delivery system when no electrical current is flowing and yet provide minimal impedance to electrically-assisted agent delivery, useful both for incorporating into electrotransport agent delivery systems and for use in measuring agent release rates in in vitro testing.
Inventor(s): Theeuwes; Felix (Los Altos, CA), Gyory; J. Richard (Los Altos, CA), Haak; Ronald P. (Cupertino, CA)
Assignee: Alza Corporation (Palo Alto, CA)
Application Number:07/898,618
Patent Claim Types:
see list of patent claims
Compound; Delivery; Device; Use;
Patent landscape, scope, and claims:

Analyzing the Scope and Claims of United States Patent 5,232,438

Introduction

Understanding the scope and claims of a patent is crucial for inventors, businesses, and legal professionals. This article will delve into the details of United States Patent 5,232,438, exploring its claims, scope, and the broader patent landscape.

Patent Overview

United States Patent 5,232,438, though not specifically detailed in the provided sources, can be analyzed using general principles of patent law and search tools available through the USPTO.

Searching for Patents

To find detailed information about a specific patent, one can use the USPTO's search facilities. The USPTO Public Search Facility and Patent and Trademark Resource Centers (PTRCs) provide access to patent and trademark information in various formats, including online, microfilm, and print[1].

Patent Claims

Patent claims are the most critical part of a patent application, as they define the scope of the invention. The Patent Claims Research Dataset by the USPTO can provide insights into how claims are structured and analyzed. This dataset contains detailed information on claims from US patents granted between 1976 and 2014 and US patent applications published between 2001 and 2014[3].

Claim Construction

When analyzing the claims of a patent like 5,232,438, it is essential to understand the claim construction. Claims are typically divided 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.

Patent Eligibility

The eligibility of patent claims under 35 U.S.C. § 101 is a critical aspect. The Supreme Court has established a two-stage framework to determine patent eligibility, which involves identifying whether the claims are directed to a patent-ineligible concept (such as an abstract idea) and, if so, determining whether the claims contain an inventive concept that transforms the abstract idea into a patent-eligible application[2].

Scope of the Invention

The scope of the invention is defined by the claims, but it is also influenced by the specification and drawings. The specification must provide sufficient detail to enable one skilled in the art to make and use the invention, and the drawings should illustrate the invention[1].

Patent Family and Global Dossier

For patents with international filings, the Global Dossier service provided by the USPTO can be useful. This service allows users to see the patent family for a specific application, including all related applications filed at participating IP Offices, along with the dossier, classification, and citation data[1].

Common Citation Document (CCD)

The Common Citation Document (CCD) consolidates prior art cited by all participating offices for the family members of a patent application. This can help in understanding the prior art landscape and how the patent fits within it[1].

Economic and Statistical Analysis

The USPTO's Patent Claims Research Dataset can also provide economic and statistical insights into patent claims. This dataset includes claim-level statistics and document-level statistics, which can help in analyzing the scope and impact of a patent[3].

Legal Precedents

Legal precedents, such as the case of Electric Power Group, LLC v. Alstom S.A., are crucial in understanding how courts interpret patent claims. This case highlights the importance of ensuring that claims do not merely describe abstract ideas but include inventive means to achieve the desired result[2].

Practical Application

To apply this knowledge practically, one would need to:

  • Search the Patent: Use the USPTO's search tools to find the patent and its associated documents.
  • Analyze Claims: Carefully read and analyze the claims to understand the scope of the invention.
  • Review Specification and Drawings: Examine the specification and drawings to gain a comprehensive understanding of the invention.
  • Check Patent Family and Prior Art: Use the Global Dossier and CCD to see related applications and prior art.

Key Takeaways

  • Claims Define Scope: Patent claims are the definitive part of a patent application.
  • Patent Eligibility: Claims must pass the test of patent eligibility under 35 U.S.C. § 101.
  • Global Dossier and CCD: These tools help in understanding the international and prior art context of a patent.
  • Economic and Statistical Analysis: Datasets like the Patent Claims Research Dataset provide valuable insights into patent claims.

FAQs

Q: How do I search for a specific patent on the USPTO website? A: You can use the USPTO's Public Search Facility or online search tools to find a specific patent by its number or other identifying information[1].

Q: What is the importance of the Global Dossier in patent search? A: The Global Dossier provides a single portal to access file histories of related applications from participating IP Offices, helping users understand the global patent family and prior art[1].

Q: How do courts determine patent eligibility under 35 U.S.C. § 101? A: Courts use a two-stage framework to determine if claims are directed to a patent-ineligible concept and if they contain an inventive concept that transforms the abstract idea into a patent-eligible application[2].

Q: What is the Common Citation Document (CCD)? A: The CCD consolidates prior art cited by all participating offices for the family members of a patent application, providing a single point access to up-to-date citation data[1].

Q: Where can I find detailed information on patent claims statistics? A: The USPTO's Patent Claims Research Dataset provides detailed information on claims from US patents and applications, including claim-level and document-level statistics[3].

Sources

  1. USPTO - Search for patents
  2. Electric Power Group, LLC v. Alstom S.A.
  3. USPTO - Patent Claims Research Dataset

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Drugs Protected by US Patent 5,232,438

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
Showing 0 to 0 of 0 entries

International Family Members for US Patent 5,232,438

CountryPatent NumberEstimated ExpirationSupplementary Protection CertificateSPC CountrySPC Expiration
Australia 2987692 ⤷  Try for Free
Australia 4425489 ⤷  Try for Free
Australia 627786 ⤷  Try for Free
Australia 658246 ⤷  Try for Free
Austria 234130 ⤷  Try for Free
Austria 235284 ⤷  Try for Free
>Country>Patent Number>Estimated Expiration>Supplementary Protection Certificate>SPC Country>SPC Expiration
Showing 1 to 6 of 6 entries

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.