Details for Patent: 8,501,158

Summary for Patent: 8,501,158

Title:	Polyol and polyether iron oxide complexes as pharmacological and/or MRI contrast agents
Abstract:	Pharmacological compositions, and methods for administration, of the type employing an iron oxide complex with a polyol or polyether. The methods of administration may comprise parenteral administration of an effective dose of the complex formulated in a biocompatible liquid delivered at a rate of from about 1 mL/sec to less than 1 mL/min and wherein upon administration the complex provides minimal detectable free iron in a subject, and minimal incidence of anaphylaxis. The pharmacological compositions are of the type employing a polyol or polyether iron oxide complex, which, upon parenteral administration to a subject, are substantially immunosilent, provide minimal anaphylaxis and minimal free iron, and undergo minimal dissolution in vivo.
Inventor(s):	Groman; Ernest V. (Brookline, MA), Paul; Kenneth G. (Holliston, MA), Frigo; Timothy B. (Waltham, MA), Bengele; Howard (Canton, MA), Lewis; Jerome M. (Mewton, MA)
Assignee:	AMAG Pharmaceuticals, Inc. (Lexington, MA)
Application Number:	12/963,308
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for patent 8,501,158
Patent Claim Types: see list of patent claims	Use; Composition;

Analyzing the Scope and Claims of United States Patent 8,501,158: A Comprehensive Guide

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 8,501,158, providing a thorough analysis of its claims, scope, and the broader patent landscape.

Understanding Patent Claims

Before diving into the specifics of US Patent 8,501,158, it is essential to understand what patent claims are and their significance. Patent claims define the scope of the invention and are the legal boundaries of what the patent protects. They are typically found at the end of the patent document and are written in a specific format to ensure clarity and precision[3].

Locating the Patent

To analyze US Patent 8,501,158, one must first locate the patent document. This can be done using the USPTO's Patent Public Search tool, which replaces older tools like PubEast and PubWest. This modern interface provides enhanced access to prior art and other relevant patent information[1].

Reading the Patent Document

The patent document for US 8,501,158 will include several key sections:

• Abstract: A brief summary of the invention.
• Background of the Invention: Context about the field and the problem the invention solves.
• Summary of the Invention: A concise description of the invention.
• Detailed Description of the Invention: A detailed explanation of how the invention works.
• Claims: The legal definitions of what the patent protects.

Analyzing the Claims

The claims section is the most critical part of the patent document. Here, you will find the specific language that defines the invention and sets the boundaries of what is protected. Claims can be independent or dependent:

• Independent Claims: Standalone claims that define the invention without referencing other claims.
• Dependent Claims: Claims that build upon independent claims, often narrowing the scope[3].

For US Patent 8,501,158, carefully read each claim to understand what is being protected. Look for key terms, limitations, and any dependencies between claims.

Scope of the Invention

The scope of the invention is determined by the claims. Here are some steps to analyze the scope:

• Identify Key Terms: Understand the meaning of each term used in the claims. This may involve claim construction, a process where the court or the patent office interprets the meaning of claim terms[2].
• Determine Claim Limitations: Each claim will have specific limitations that define what is protected. These limitations can include structural, functional, or methodological aspects of the invention.
• Consider Dependent Claims: Dependent claims can further narrow the scope of the invention by adding additional limitations.

Patent Landscape Analysis

To fully understand the significance of US Patent 8,501,158, it is important to analyze the broader patent landscape:

• Prior Art Search: Use tools like the USPTO's Patent Public Search or the Cooperative Patent Classification (CPC) database to find prior art related to the invention. This helps in understanding how the patent fits into the existing technological landscape[1][4].
• Global Dossier: If the patent is part of a global patent family, use the Global Dossier service to see related applications from participating IP Offices. This can provide insights into how the invention is protected internationally[1].
• Common Citation Document (CCD): The CCD application consolidates citation data from multiple offices, helping to visualize the prior art cited by different offices for the same invention[1].

Legal Considerations

Patent claims are subject to legal scrutiny, particularly during litigation or review processes:

• Claim Construction: Courts may interpret claim terms to determine their meaning. This is a question of law reviewed de novo on appeal[2].
• Validity Challenges: Patents are presumed valid, but claims can be challenged for anticipation, obviousness, or indefiniteness. Tools like the Patent Examination Data System (PEDS) can help in analyzing the validity of patent claims[1][2].

Practical Applications

Understanding the scope and claims of a patent like US 8,501,158 has practical implications:

• Infringement Analysis: Knowing the claims helps in determining whether a product or process infringes on the patent.
• Licensing and Collaboration: Clear understanding of the patent scope is crucial for licensing agreements or collaborative projects.
• Research and Development: Analyzing the patent landscape helps in identifying areas for innovation and avoiding potential infringement.

Tools and Resources

Several tools and resources are available to aid in patent analysis:

• Patent Public Search: A modern web-based patent search application provided by the USPTO[1].
• Patent and Trademark Resource Centers (PTRCs): Local centers that offer training and resources for patent searching[1][4].
• Patent Claims Research Dataset: A dataset provided by the USPTO that contains detailed information on claims from US patents and applications[3].

Key Takeaways

• Claims Define the Scope: The claims section of a patent document is crucial for understanding what is protected.
• Legal Interpretation: Claim construction and validity challenges are legal processes that can affect the scope of the patent.
• Broad Landscape Analysis: Understanding the global patent family and prior art is essential for a comprehensive analysis.
• Practical Implications: Knowing the patent scope is vital for infringement analysis, licensing, and R&D.

FAQs

What is the purpose of the claims section in a patent document?

The claims section defines the legal boundaries of what the patent protects, specifying what is considered the invention.

How do I locate a specific US patent document?

You can use the USPTO's Patent Public Search tool to locate and access the document.

What is the difference between independent and dependent claims?

Independent claims stand alone and define the invention without referencing other claims, while dependent claims build upon independent claims, often narrowing the scope.

Why is claim construction important?

Claim construction is crucial as it determines the meaning of claim terms, which can significantly impact the scope of the patent and its validity.

What resources are available for advanced patent searching?

Resources include the USPTO's Patent Public Search, Cooperative Patent Classification (CPC) database, and Patent and Trademark Resource Centers (PTRCs)[1][4].

Sources

1. USPTO - Search for patents: https://www.uspto.gov/patents/search
2. CAFC - VASCULAR SOLUTIONS LLC v. MEDTRONIC, INC.: https://cafc.uscourts.gov/opinions-orders/24-1398.OPINION.9-16-2024_2384927.pdf
3. USPTO - Patent Claims Research Dataset: https://www.uspto.gov/ip-policy/economic-research/research-datasets/patent-claims-research-dataset
4. Clemson University - Advanced Patent Searching: https://clemson.libguides.com/advanced_patent_searching

Drugs Protected by US Patent 8,501,158

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Patented / Exclusive Use	Submissiondate

International Family Members for US Patent 8,501,158

Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
European Patent Office	1169062		C300558	Netherlands
European Patent Office	1169062		CA 2012 00050	Denmark
European Patent Office	1169062		92114	Luxembourg