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Last Updated: March 29, 2025

Details for Patent: 6,429,226


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Summary for Patent: 6,429,226
Title: Prostaglandin derivatives for the treatment of glaucoma or ocular hypertension
Abstract:The invention relates to ophthalmological compositions for topical treatment of glaucoma or ocular hypertension comprising an effective intraocular pressure reducing amount of a prostaglandin derivative of PGA, PGB, PGD, PGE or PGF, in which the omega chain contains a ring structure, in an ophthalmologically compatible carrier. The invention further relates to the preparation of said compositions and their use for treatment of glaucoma or ocular hypertension.
Inventor(s): Stjernschantz; Johan Wilhelm (Uppsala, SE), Resul; Bahram (Uppsala, SE)
Assignee: Pharmacia Aktiebolag (Stolkholm, SE)
Application Number:09/562,447
Patent Claim Types:
see list of patent claims
Use; Composition; Compound;
Patent landscape, scope, and claims:

Analyzing the Scope and Claims of United States Patent 6,429,226: A Comprehensive Guide

Introduction

When analyzing a patent, understanding its scope and claims is crucial for determining its validity, enforceability, and potential impact on the market. This article will delve into the specifics of United States Patent 6,429,226, providing a detailed analysis of its scope and claims, and outlining the broader patent landscape.

Understanding Patent Scope and Claims

Before diving into the specifics of Patent 6,429,226, it's essential to understand what patent scope and claims entail.

Patent Scope

The scope of a patent refers to the breadth of protection it offers. It is determined by the claims, which are the legally binding descriptions of the invention. A broader scope means the patent covers a wider range of variations and applications, while a narrower scope limits the protection to a more specific implementation[3].

Patent Claims

Patent claims are the heart of a patent, defining what the inventor considers to be their invention. They must be clear, concise, and supported by the patent's description. Claims can be independent or dependent, with dependent claims building upon independent claims[3].

United States Patent 6,429,226: Overview

To analyze Patent 6,429,226, one would typically start by reviewing the patent document itself, which includes the abstract, background, summary, detailed description, and claims.

Abstract and Background

The abstract provides a brief summary of the invention, while the background section discusses the prior art and the problems the invention solves.

Summary and Detailed Description

The summary and detailed description sections explain the invention in more detail, including how it works and its various embodiments.

Claims

The claims section is where the legal boundaries of the invention are defined. Here, you would identify the independent and dependent claims, which together outline what is protected by the patent.

Conducting a Preliminary Patent Search

To understand the context and validity of Patent 6,429,226, conducting a preliminary patent search is essential.

Using USPTO Resources

The USPTO offers several tools for patent searching, including the Patent Public Search tool, which replaced legacy tools like PubEast and PubWest. This tool provides enhanced access to prior art and is a powerful resource for determining the novelty and non-obviousness of an invention[1].

Global Dossier and Common Citation Document

The Global Dossier and Common Citation Document (CCD) can also be useful. The Global Dossier allows users to see the patent family for a specific application, including related applications from participating IP Offices. The CCD consolidates citation data from multiple offices, helping to visualize the prior art cited for the same invention[1].

Analyzing Patent Claims Data

For a deeper analysis, datasets like the Patent Claims Research Dataset provided by the USPTO can be invaluable. This dataset contains detailed information on claims from US patents granted between 1976 and 2014 and US patent applications published between 2001 and 2014. It includes claim-level statistics and document-level statistics, which can help in understanding the scope and trends in patent claims[3].

Impact of Patent Litigation

Understanding the patent landscape also involves considering the impact of patent litigation. The number of patent infringement lawsuits has fluctuated over the years, with significant changes influenced by legislation such as the Leahy-Smith America Invents Act (AIA). This act, for example, limited the number of defendants in a lawsuit, leading to an increase in the number of lawsuits filed[4].

International Patent Landscape

Patents are not isolated to one country; they often have international implications. Searching international patent offices such as the European Patent Office (EPO), Japan Patent Office (JPO), and World Intellectual Property Organization (WIPO) can provide a more comprehensive view of the global patent landscape[1].

Practical Considerations for Patent Holders

For patent holders, understanding the scope and claims of their patent is crucial for enforcement and defense. Here are some practical considerations:

Ensuring Patent Quality

The USPTO has emphasized the importance of linking patent litigation trends to internal data on patent examination to improve patent quality. This ensures that patents issued are less likely to be involved in future litigation[4].

Small Claims Patent Court

There have been discussions about establishing a small claims patent court to handle lower-stakes patent disputes more efficiently. This could impact how patent holders approach litigation and enforcement[5].

Key Takeaways

  • Patent Scope and Claims: The scope of a patent is defined by its claims, which must be clear and supported by the patent's description.
  • Preliminary Patent Search: Using tools like the USPTO's Patent Public Search and Global Dossier is crucial for determining the validity and context of a patent.
  • Patent Claims Data: Datasets like the Patent Claims Research Dataset can provide valuable insights into claim trends and statistics.
  • Patent Litigation: Understanding the impact of patent litigation and recent legislative changes is essential for navigating the patent landscape.
  • International Implications: Searching international patent offices is necessary for a comprehensive understanding of the global patent landscape.
  • Practical Considerations: Ensuring patent quality and being aware of potential changes in patent litigation procedures are vital for patent holders.

FAQs

What is the purpose of the Patent Public Search tool?

The Patent Public Search tool is a web-based application that provides enhanced access to prior art, replacing legacy tools like PubEast and PubWest. It improves the overall patent searching process by offering modern interfaces and powerful search capabilities[1].

How can I access international patent databases?

International patent databases can be accessed through various offices such as the European Patent Office (EPO), Japan Patent Office (JPO), and World Intellectual Property Organization (WIPO). These databases often provide machine translations and full-text searches of published international patent applications[1].

What is the significance of the Patent Claims Research Dataset?

The Patent Claims Research Dataset contains detailed information on claims from US patents and patent applications, including claim-level and document-level statistics. This dataset helps in understanding trends and measurements of patent scope, which is crucial for patent analysis and policy-making[3].

How has the Leahy-Smith America Invents Act (AIA) impacted patent litigation?

The AIA has significantly impacted patent litigation by limiting the number of defendants in a lawsuit, leading to an increase in the number of lawsuits filed. It also introduced changes such as inter partes review (IPR) and post-grant review (PGR) procedures[4].

What is the proposed small claims patent court?

The proposed small claims patent court is a potential new system aimed at handling lower-stakes patent disputes more efficiently. It is being studied by the Administrative Conference of the United States (ACUS) to determine its feasibility and potential structure[5].

Sources

  1. USPTO - Search for patents: https://www.uspto.gov/patents/search
  2. USA.gov - U.S. Patent and Trademark Office (USPTO): https://www.usa.gov/agencies/u-s-patent-and-trademark-office
  3. USPTO - Patent Claims Research Dataset: https://www.uspto.gov/ip-policy/economic-research/research-datasets/patent-claims-research-dataset
  4. GAO - Assessing Factors That Affect Patent Infringement Litigation: https://www.gao.gov/products/gao-13-465
  5. ACUS - U.S. Patent Small Claims Court: https://www.acus.gov/research-projects/us-patent-small-claims-court

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Drugs Protected by US Patent 6,429,226

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

Foreign Priority and PCT Information for Patent: 6,429,226

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Sweden8803110Sep 06, 1988
Sweden8803855Oct 28, 1988

International Family Members for US Patent 6,429,226

CountryPatent NumberEstimated ExpirationSupplementary Protection CertificateSPC CountrySPC Expiration
European Patent Office 0364417 ⤷  Try for Free SPC/GB97/014 United Kingdom ⤷  Try for Free
European Patent Office 0364417 ⤷  Try for Free 97C0128 France ⤷  Try for Free
European Patent Office 0364417 ⤷  Try for Free 9690031-1 Sweden ⤷  Try for Free
>Country>Patent Number>Estimated Expiration>Supplementary Protection Certificate>SPC Country>SPC Expiration
Showing 1 to 3 of 3 entries

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