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Last Updated: December 22, 2024

Details for Patent: 6,861,076


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Summary for Patent: 6,861,076
Title: Process for producing arsenic trioxide formulations and methods for treating cancer using arsenic trioxide or melarsoprol
Abstract:The invention relates to the use of arsenic compounds to treat a variety of leukemia, lymphoma and solid tumors. Further, the arsenic compounds may be used in combination with other therapeutic agents, such as a retinoid. The invention also provides a process for producing arsenic trioxide formulations.
Inventor(s): Warrell, Jr.; Raymond P. (Westfield, NJ), Pandolfi; Pier Paolo (New York, NY), Gabrilove; Janice L. (New York, NY)
Assignee: Memorial Sloan-Kettering Cancer Center (New York, NY)
Application Number:10/758,994
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 6,861,076
Patent Claim Types:
see list of patent claims
Use;
Patent landscape, scope, and claims:

Analyzing the Scope and Claims of United States Patent 6,861,076

Introduction

Understanding the scope and claims of a patent is crucial for navigating the complex landscape of intellectual property. This analysis will delve into the specifics of United States Patent 6,861,076, exploring its claims, scope, and the broader patent landscape it inhabits.

Background of the Patent

United States Patent 6,861,076, like many patents, is part of a larger family of patents that often share a common ancestry. This patent, similar to those in the Cellect LLC case, may be connected to other patents through continuations-in-part or other relationships that affect its validity and scope[1].

Claims Analysis

Types of Claims

Patent claims are the heart of any patent, defining the scope of protection granted to the inventor. Claims in a patent like 6,861,076 can be categorized into independent and dependent claims. Independent claims stand alone and define the invention broadly, while dependent claims build upon the independent claims, adding specific details and limitations[5].

Claim Construction

The construction of claims is critical for determining the patent's scope. Each claim must be carefully analyzed to understand what is being protected. For example, if a claim is overly broad, it may be vulnerable to invalidation due to obviousness or lack of novelty. Conversely, if a claim is too narrow, it may not provide sufficient protection for the invention[5].

Scope of the Patent

Technical Field

The technical field in which the patent operates is essential for understanding its relevance and impact. For instance, patents related to medical imaging, like those in the AI Visualize case, would have a scope that includes methods and systems for visualizing medical scans[2].

Novelty and Nonobviousness

The patent must meet the criteria of novelty and nonobviousness. This means the invention must be new and not obvious to a person with ordinary skill in the art. The patent office and courts scrutinize these aspects during the examination and any subsequent litigation[5].

Patent Landscape

Related Patents

Understanding the patent landscape involves identifying related patents, including those within the same family and those held by competitors. This can be achieved through patent analytics tools that categorize patents by claims and scope concepts, helping to identify gaps and opportunities in intellectual property protection[3].

Continuations and Priority Claims

Patents like 6,861,076 may be part of a series of continuations or continuations-in-part, each claiming priority from a common application. This can affect the patent term and the validity of the claims, especially in cases where obviousness-type double patenting (ODP) is a concern[1].

Obviousness-Type Double Patenting (ODP)

ODP is a critical issue when dealing with patents that have overlapping claims and different expiration dates due to Patent Term Adjustments (PTA). The Cellect LLC case illustrates how ODP can invalidate claims if they are deemed obvious variants of earlier patents within the same family[1].

Patent Term and Adjustments

The patent term, including any adjustments due to PTA or terminal disclaimers, is vital for understanding the duration of protection. Patents with PTA may have extended terms, but these extensions must be carefully managed to avoid ODP issues[1].

Litigation and Enforcement

In the event of patent infringement, the scope and claims of the patent become central to litigation. Courts evaluate whether the asserted claims are valid and if they cover the allegedly infringing products or methods. The AI Visualize case highlights how claims can be challenged under 35 U.S.C. § 101 for being directed to patent-ineligible subject matter[2].

Key Takeaways

  • Claims Construction: Carefully analyze independent and dependent claims to understand the patent's scope.
  • Novelty and Nonobviousness: Ensure the invention meets these criteria to maintain validity.
  • Patent Landscape: Use analytics tools to identify related patents and gaps in protection.
  • ODP Considerations: Manage continuations and PTA to avoid ODP issues.
  • Litigation Preparedness: Be ready to defend the patent's validity and scope in court.

FAQs

Q: What is the importance of claim construction in patent analysis? A: Claim construction is crucial as it defines the scope of protection granted to the inventor, determining what is and is not covered by the patent.

Q: How does obviousness-type double patenting (ODP) affect patent validity? A: ODP can invalidate claims if they are deemed obvious variants of earlier patents within the same family, especially when different expiration dates are involved due to PTA.

Q: What tools are available for analyzing the patent landscape? A: Patent analytics tools, such as Claim Coverage Matrix and Claim Charts, help categorize patents by claims and scope concepts, identifying gaps and opportunities in intellectual property protection.

Q: Why is it important to manage continuations and priority claims carefully? A: Managing continuations and priority claims carefully helps avoid ODP issues and ensures that the patent term is maximized without invalidating claims.

Q: How can a patent's validity be challenged in court? A: A patent's validity can be challenged under various sections of the Patent Act, such as 35 U.S.C. § 101 for patent-ineligible subject matter, or through arguments of obviousness or lack of novelty.

Sources

  1. In re Cellect, LLC, United States Court of Appeals for the Federal Circuit, 2023.
  2. AI Visualize, Inc. v. Nuance Communications, Inc., United States Court of Appeals for the Federal Circuit, 2024.
  3. Patent Analytics, Schwegman, Lundberg & Woessner, P.A.
  4. Process for producing arsenic trioxide formulations, US Patent Application, 2004.
  5. Intellectual Property Protection, University of Kansas Center for Technology Commercialization.

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Drugs Protected by US Patent 6,861,076

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