Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9725411 | Process for a direct one-pot transformation of lutein to β-cryptoxanthin via its acetate ester | — | 2017-08-08 |
| 9580371 | Process for simultaneous extraction and separation of esterified and unesterified monohydroxycarotenoids | — | 2017-02-28 |
| 8222458 | Process or synthesis of (3S)- and (3R)-3-hydroxy-beta-ionone, and their transformation to zeaxanthin and beta-cryptoxanthin | An-Ni Chang | 2012-07-17 |
| 8097762 | Process for the preparation of β- and α-cryptoxanthin | Yufa Liu, Holly Showalter | 2012-01-17 |
| 8093436 | Process for synthesis of (3R,3′R)-zeaxanthin and (3R,3′S;meso)-zeaxanthin from (3R,3′R,6′R)-lutein via (3R)-3′,4′-anhydrolutein | — | 2012-01-10 |
| 7858828 | Process for synthesis of (3R,3'R,6'R)-lutein and its stereoisomers | An-Ni Chang | 2010-12-28 |
| RE40938 | Process for isolation, purification, and recrystallization of lutein from saponified marigold oleoresin and uses thereof | — | 2009-10-13 |
| RE40931 | Process for isolation, purification, and recrystallization of lutein from saponified marigold oleoresin and uses thereof | — | 2009-10-06 |
| RE40912 | Process for isolation, purification, and recrystallization of lutein from saponified marigold oleoresin and uses thereof | — | 2009-09-08 |
| 7173145 | Process for extraction and purification of lutein, zeaxanthin and rare carotenoids from marigold flowers and plants | — | 2007-02-06 |
| 7119238 | Process for purification and crystallization of palm oil carotenoids | — | 2006-10-10 |
| 7115786 | Method for production of β-cryptoxanthin and α-cryptoxanthin from commercially available lutein | — | 2006-10-03 |
| 6911564 | Method for production of rare carotenoids from commercially available lutein | — | 2005-06-28 |
| 6818798 | Process for making a (3R,3′R)-zeaxanthin precursor | — | 2004-11-16 |
| 6262284 | Process for extraction and purification of lutein, zeaxanthin and rare carotenoids from marigold flowers and plants | — | 2001-07-17 |
| 5386063 | Synthesis of (all-E)-2,7,-dimethylocta-2,4,6-triene-1,8-dial.sup.13 C.sub.4 | Gary R. Beecher, Betty W. Li | 1995-01-31 |
| 5382714 | Process for isolation, purification, and recrystallization of lutein from saponified marigold oleoresin and uses thereof | — | 1995-01-17 |