US Patent 7732632 Process for obtaining pure oseltamivir
Patent 7732632 was granted and assigned to Hetero Drugs Limited on June, 2010 by the United States Patent and Trademark Office.
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Patent abstract
The present invention provides a process for obtaining highly pure crystalline form of oseltamivir free base, thus, for example, suspending or dissolving impure or non-crystalline oseltamivir free base in a hydrocarbon solvent and then isolating crystals to obtain oseltamivir free base in well defined crystalline form. The present invention also provides a process for preparation of oseltamivir phosphate in high purity.
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US Patent 07732632 Process for obtaining pure oseltamivir US Patent 7732632 Process for obtaining pure oseltamivir
Infobox
Patent Number
0773263200
Patent Number
773263200
Edits on 22 Apr, 2023
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
077326320
Date of Patent
June 8, 2010
0Patent Application Number
117197730
Date Filed
January 2, 2006
0Official Website
Patent Primary Examiner
Edits on 26 Sep, 2022
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
077326320
Date of Patent
June 8, 2010
0Patent Application Number
117197730
Date Filed
January 2, 2006
0Official Website
Patent Primary Examiner
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US Patent 07732632 Process for obtaining pure oseltamivir
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07732632
Date of patent
June 8, 2010
Patent application number
11719773
Date Filed
January 2, 2006
Patent primary examiner
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