Huang, Kenneth He; Ommen, Andy J.; Barta, Thomas E.; Hughes, Philip F.; Veal, James; Ma, Wei; Smith, Emilie D.; Woodward, Angela R.; McCall, W. Stephen
Patent: US2008/269193 A1, 2008 ;
Location in patent: Page/Page column 33 ;

CIBA
Patent: US2152960 , 1936 ;