(12) United States Patent (10) Patent No.: US 9,713,596 B2 Hong Et Al
USOO9713596B2 (12) United States Patent (10) Patent No.: US 9,713,596 B2 Hong et al. (45) Date of Patent: Jul. 25, 2017 (54) BAKUCHOL COMPOSITIONS FOR FOREIGN PATENT DOCUMENTS TREATMENT OF POST INFLAMMATORY DE 1900 435 7, 1970 HYPERPGMENTATION DE 3417234 A1 * 11, 1985 JP H1171231 A * 3, 1999 ............... A61K 7.00 (75) Inventors: Mei Feng Hong, Lacey, WA (US); Qi JP 2000-327581 A 11 2000 Jia, Olympia, WA (US); Lidia Alfaro JP 2005325 120 A 11/2005 KR 2000-0007648 A 2, 2000 Brownell, Tacoma, WA (US) WO 2006/122160 A2 11/2006 WO 2008. 140673 A1 11, 2008 (73) Assignee: Unigen, Inc., Lacey, WA (US) (*) Notice: Subject to any disclaimer, the term of this OTHER PUBLICATIONS patent is extended or adjusted under 35 Ohno, O. Watabe, T., Kazuhiko, N., Kawagoshi, M., Uotsu, N., U.S.C. 154(b) by 0 days. Chiba, T., Yamada, M., Yamaguchi, K., Yamada, K., Miyamoto, K., Uemura, D. Inhibitory Effects of Bakuchiol, Bavachin, an (21) Appl. No.: 13/365,172 Isobavachalcone Isolated from Piper loungum on Melainin Produc (22) Filed: Feb. 2, 2012 tion in B 16 Mouse Melanoma Cells. Biosci. Biotechnol. Biochem. 74 (7), 1504-1506 (2010).* Prior Publication Data Hiroyuki Haraguchi, Junji Inoue, Yukiyoshi Tamura and Kenji (65) Mizutani.Antioxidative Components of Psoralea corylifolia US 2012/O2O1769 A1 Aug. 9, 2012 (Leguminosae). Phytother. Res. 16, 539-544 (2002).* Petra Clara Arck, et al. Towards a “free radical theory of graying: melanocyte apoptosis in the aging human hair follicle is an indicator Related U.S. Application Data of oxidative stress induced tissue damage.
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