Method for the purification of betaines

United States of America Patent

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Sep 7, 2010
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Mar 12, 2009
app pub date
Jun 1, 2006
filing date
Jun 1, 2005

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Abstract

The invention relates to a method for purification of synthetically-produced compounds, comprising a betaine structure in the molecule, for example, indocyan green, characterized in that reaction by-products, starting materials and/or other impurities such as NaI used during production are separated by extraction.

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Patent Owner	Address
RENEW GROUP PRIVATE LIMITED	15 CHANGI BUSINESS CENTRAL #02-01 SINGAPORE 486057

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C07D:HETEROCYCLIC COMPOUNDS

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Inventor Name	Address	# of filed Patents	Total Citations
Hanke, Bernhard	Bensheim, DE	13	245
Pieter, Ina	Bensheim, DE	1	1

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Method for the purification of betaines

Number of patents in Portfolio can not be more than 2000

United States of America Patent

11920190

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PATENT NO	7790906
APP PUB NO	20090069573A1
SERIAL NO	11920190
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
September 07, 2010	US,7790906,B2 US7790906B2	GRANTED PATENT AS SECOND PUBLICATION
March 12, 2009	US,20090069573,A1 US20090069573A1	FIRST PUBLISHED PATENT APPLICATION

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11920190

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