US Patent 7476330 Low temperature susceptibility compensation

Patent 7476330 was granted and assigned to Varian, Inc. on January, 2009 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Varian, Inc.

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

74763300

Patent Inventor Names

Thomas de Swiet0

Thomas M. Barbara0

Date of Patent

January 13, 2009

Patent Application Number

106697720

Date Filed

September 24, 2003

Patent Primary Examiner

‌

Stuart Hendrickson

Patent abstract

An composition exhibiting a desired value of magnetic susceptibility, which can be used to fabricate components in an NMR device, and method thereof, wherein the composition comprises a metal ion selected from the group consisting of Gd+3, Fe+3 and Mn+2 and an amorphous material using a ligand or chelating agent to solubilize the metal ion throughout the marphous material, wherein the magnetic susceptibility of the composition exhibits a desired value at cryogenic temperatures such as nearly zero susceptibility at temperatures at or below 77° K.