US Patent 7619120 Processes for the preparation of diphenylsulfone compounds
Patent 7619120 was granted and assigned to Nippon Soda Co., Ltd. on November, 2009 by the United States Patent and Trademark Office.
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Patent Inventor Names
Kiyoshi Katsuura0
Tomoya Hidaka0
Yasuo Ohnuki0
Yutaka Takashina0
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Patent abstract
The present invention is to provide methods for producing highly pure 4,4′-dihydroxydiphenyl sulfone monoethers advantageously in industrial production.
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US Patent 07619120 Processes for the preparation of diphenylsulfone compounds US Patent 7619120 Processes for the preparation of diphenylsulfone compounds
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Patent Number
076191200
Patent Number
76191200
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Official Website
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
076191200
Date of Patent
November 17, 2009
0Patent Application Number
109508890
Date Filed
September 27, 2004
0Official Website
Patent Primary Examiner
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Website URL
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US Patent 07619120 Processes for the preparation of diphenylsulfone compounds
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07619120
Date of patent
November 17, 2009
Patent application number
10950889
Date Filed
September 27, 2004
Patent primary examiner
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