金盞花萃取物專利號碼與內容項目

US 6191293B1美國專利:Trans-xanthophyll ester concentrates of enhanced purity and methods of making same.

US 4048203美國專利:Purification of lutein-fatty acid esters from plant materials

EP 1 073 694 B1歐盟專利:Trans-xanthophyll ester concentrates of enhanced purity and methods of making same.

CA 2 340 429 加拿大專利:Trans-xanthophyll ester concentrates of enhanced purity and methods of making same.

AU 199935597 B 澳洲專利:Trans-xanthophyll ester concentrates of enhanced purity and methods of making same.