US Patent 7988760 Method of making nanocrystalline tungsten powder
Patent 7988760 was granted and assigned to Global Tungsten & Powders Corp. on August, 2011 by the United States Patent and Trademark Office.
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Patent abstract
There is described a method of making a nanocrystalline tungsten powder that comprises: (a) heating a tungsten-containing material in a reducing atmosphere at an intermediate temperature of from about 600° C. to about 700° C. for an intermediate time period; the tungsten-containing material being selected from ammonium paratungstate, ammonium metatungstate or a tungsten oxide; and (b) increasing the temperature to a final temperature of about 800° C. to about 1000° C. for a final time period.
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Patent Inventor Names
Hans-Joachim Lunk0
Henry J. Stevens0
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US Patent 07988760 Method of making nanocrystalline tungsten powder US Patent 7988760 Method of making nanocrystalline tungsten powder
Infobox
Patent Number
079887600
Patent Number
79887600
Edits on 24 Apr, 2023
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
079887600
Date of Patent
August 2, 2011
0Patent Application Number
120365070
Date Filed
February 25, 2008
0Patent Primary Examiner
Edits on 8 Dec, 2021
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Infobox (+8 properties)
US Patent 07988760 Method of making nanocrystalline tungsten powder
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07988760
Date of patent
August 2, 2011
Patent application number
12036507
Date Filed
February 25, 2008
Patent primary examiner
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