Home > Legal PATENTS: U.S.A. Number 6, 238,673 U.S.A. Number 6,239,432 CANADA Number 2,224,217 MEXICO Number 944923 U.S.A. Class 5 Registration number 2,837,136 NAME Luteinplus U.S.A. Class 5 Registration 2,884,994 MZ U.S.A. Class 5 Registration 3,655,528 MACUHEALTH U.S.A. Class 5 Registration 4,995,821 MACUHEALTH TRUST THE SCIENCE