Patents

Protected by U.S. patents 6,163,719; 6,682,649; 6,700,427; 6,932,893; 7,288,785; 7,322,926; Canadian patents: 2,385,482; 2,424,498; 2,480,338; 2,515,974; European patents: 1,221,046; 1,495,105; 1,597,576; 1,599,290; Australian Patents: 780,157; 2,001,293,676; New Zealand patents: 518,057; Japanese patents: 4,033,768; 4,351,073; 4,540,613; Chinese patents: ZL00,813,615.7; ZL01,819,348.X; ZL03,808,556.9; ZL200,480,003,546.7; Patents Pending