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Patent Category:
Domestic invention
Open No.:
ZL200710010362.9
Authorized Time:
2011.11.30

Preparation, stabilization and removal of high purity lutein esters
Patent Category:
Domestic invention
Open No.:
ZL200910010491.7
Authorized Time:
2012.01.11

Composition containing lutein ester and its preparation method
Patent Category:
Domestic invention
Open No.:
ZL201110305275.2
Authorized Time:
2013.11.06