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Last Updated: December 22, 2024

Details for Patent: 8,122,917


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Summary for Patent: 8,122,917
Title:Apparatus and method for dispensing foam
Abstract: A foam transfer device is described, for use with aerosol canister apparatus for producing a sclerosant foam for the treatment of, inter alia, varicose veins. The device enables diversion of an initial quantity of below-specification foam from the canister to waste, e.g. to an integral waste chamber, before dispensing a further quantity of foam for use in treatment. The switching of the flow from the waste chamber to a different outlet for use is accomplished without interrupting the flow from the aerosol canister since this would cause the foam to drop below specification again. The waste chamber may be transparent so that the foam entering it can be observed and a decision made by a user when to stop diverting foam to waste. Alternatively, the foam may be diverted automatically e.g. when a set time has elapsed or a set volume of foam dispensed. The foam for use is normally dispensed into a syringe for subsequent injection into a varicose vein of a patient.
Inventor(s): Harman; Anthony David (Oxon, GB), Wright; David Dakin Iowerth (High Waycombe, GB), Mijers; Jam Wilem Marinus (Haarlem, NL), Kay; Stuart Brian William (Cambridge, GB), Hurlstone; Christopher John (Cambridge, GB), Dixon; Julina Richard (Cambridge, GB), Pocock; Andrew Gordon (Cambridge, GB), Hogan; Brendan (Co Galway, IE)
Assignee: BTG International Limited (London, GB)
Application Number:12/923,209
Patent Claim Types:
see list of patent claims
Device;
Patent landscape, scope, and claims:

Analyzing the Scope and Claims of a Patent: A Detailed Guide Using United States Patent 8,122,917 as an Example

Introduction to Patent Analysis

Patent analysis is a crucial process for understanding the intellectual property landscape, identifying potential gaps, and strategizing for innovation and protection. This article will delve into the detailed analysis of the scope and claims of a patent, using United States Patent 8,122,917 as a case study.

Understanding the Basics of Patents

Before diving into the analysis, it's essential to understand the basic components of a patent. A patent typically includes the background of the invention, a detailed description, claims, and drawings or diagrams. The claims section is particularly important as it defines the scope of the invention and what is protected under the patent[3].

Identifying the Patent

United States Patent 8,122,917 is a specific example that we will use to illustrate the process of patent analysis. To start, you need to locate the patent document, which can be done through various patent search databases such as the USPTO's Patent Public Search tool or other international patent databases[1][4].

Reading and Understanding the Patent Document

Background and Description

The background section provides context about the invention, including prior art and the problems it solves. The detailed description section explains how the invention works and includes any necessary drawings or diagrams.

Claims Section

The claims section is the heart of the patent document. It outlines what the inventor is claiming as their invention and defines the scope of protection. Claims can be independent or dependent, with dependent claims building upon independent claims[3].

Analyzing the Claims

Independent Claims

Independent claims stand alone and define the broadest scope of the invention. For example, in United States Patent 8,122,917, the first independent claim might describe the overall system or method of the invention.

Dependent Claims

Dependent claims narrow down the scope by adding specific limitations to the independent claims. These claims are often more detailed and can help in understanding the various aspects of the invention.

Claim Charts and Scope Concepts

To analyze the claims effectively, tools like Claim Charts and scope concepts can be used. These tools help in categorizing claims by their scope and linking similar claims across different patents. This method, known as ClaimScape®, makes it easier to review patent coverage with technical experts and identify gaps or future design opportunities[3].

Evaluating the Scope of the Patent

Claim Coverage Matrix

A Claim Coverage Matrix is a powerful tool for understanding which patents and claims are actively protecting your intellectual property. It helps in identifying where gaps or opportunities exist in your current patent portfolio. By categorizing patents by claims and scope concepts, you can filter, search, and analyze large numbers of patent claims efficiently[3].

Identifying High, Medium, and Low-Value Claims

Claims can be valued based on their current and future importance to your company. High-value claims are those that are crucial to your current products or services. Medium-value claims indicate potential future directions, while low-value claims may not be worth maintaining. This valuation helps in prioritizing and managing your patent portfolio effectively[3].

Analyzing the Patent Landscape

Cooperative Patent Classification (CPC)

The Cooperative Patent Classification (CPC) system is a harmonized classification system used by the USPTO and the European Patent Office. Searching by CPC can help in finding relevant patents and understanding the broader patent landscape related to your invention[4].

Global Dossier and International Search

The Global Dossier service allows you to view the patent family for a specific application, including related applications filed at participating IP Offices. This helps in understanding how your invention is protected globally and identifying any potential overlaps or conflicts with other patents[1].

Public Search Facilities and Resources

Utilizing resources such as the USPTO Public Search Facility, Patent and Trademark Resource Centers (PTRCs), and online databases like PATENTSCOPE can provide comprehensive access to patent information. These resources are essential for conducting thorough patent searches and analyses[1][4].

Practical Applications of Patent Analysis

Identifying Gaps and Opportunities

By analyzing the claims and scope of a patent, you can identify gaps in your current coverage and potential future design opportunities. This helps in strategizing for new product development and ensuring that your intellectual property is adequately protected[3].

Collaborating with Technical Experts

Interactive claim charts generated by tools like ClaimScape® can be reviewed by engineers, scientists, and management to determine the applicability of scope concepts to target products or methods. This collaborative approach ensures that all stakeholders are aligned and that the patent strategy is integrated into the overall business strategy[3].

Case Study: United States Patent 8,122,917

To illustrate the process, let's consider a hypothetical analysis of United States Patent 8,122,917.

  • Background and Description: Understand the context and detailed description of the invention.
  • Claims Analysis: Identify the independent and dependent claims. Use claim charts and scope concepts to categorize and analyze these claims.
  • Scope Evaluation: Use a Claim Coverage Matrix to evaluate the scope of the patent and identify high, medium, and low-value claims.
  • Patent Landscape Analysis: Search using CPC and Global Dossier to understand the broader patent landscape and global protection.

Key Takeaways

  • Comprehensive Search: Use multiple resources such as the USPTO's Patent Public Search, Global Dossier, and international patent databases to conduct a thorough search.
  • Claim Analysis: Focus on the claims section to understand the scope of protection.
  • Scope Concepts: Utilize tools like ClaimScape® to categorize claims by scope concepts.
  • Collaboration: Involve technical experts in the analysis to ensure alignment with business strategies.
  • Continuous Monitoring: Regularly update and review your patent portfolio to identify gaps and opportunities.

FAQs

Q: How do I locate a specific patent document?

A: You can locate a specific patent document using the USPTO's Patent Public Search tool or other international patent databases such as PATENTSCOPE or esp@cenet[1][4].

Q: What is the importance of the claims section in a patent?

A: The claims section defines the scope of the invention and what is protected under the patent. It is the most critical part of the patent document[3].

Q: How can I analyze the claims of a patent effectively?

A: Use tools like Claim Charts and scope concepts to categorize and analyze claims. This helps in identifying gaps and opportunities in your patent portfolio[3].

Q: What is the Cooperative Patent Classification (CPC) system?

A: The CPC system is a harmonized classification system used by the USPTO and the European Patent Office to classify patents. It helps in finding relevant patents and understanding the broader patent landscape[4].

Q: How can I evaluate the global protection of my invention?

A: Use the Global Dossier service to view the patent family for a specific application, including related applications filed at participating IP Offices. This helps in understanding how your invention is protected globally[1].

Sources

  1. USPTO: Search for patents - USPTO. Retrieved from https://www.uspto.gov/patents/search
  2. USA.gov: U.S. Patent and Trademark Office (USPTO) | USAGov. Retrieved from https://www.usa.gov/agencies/u-s-patent-and-trademark-office
  3. SLWIP: Patent Analytics | Intellectual Property Law. Retrieved from https://www.slwip.com/services/patent-analytics/
  4. Clemson University: Research and Course Guides: Patent Searching, Advanced: Overview. Retrieved from https://clemson.libguides.com/advanced_patent_searching
  5. ACUS: U.S. Patent Small Claims Court. Retrieved from https://www.acus.gov/research-projects/us-patent-small-claims-court

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Drugs Protected by US Patent 8,122,917

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Provensis VARITHENA polidocanol SOLUTION;INTRAVENOUS 205098-001 Nov 25, 2013 RX Yes Yes ⤷  Subscribe ⤷  Subscribe Y ⤷  Subscribe
>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: 8,122,917

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom0321210.7Sep 10, 2003

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