Patents

USA
5,269,677; 5,660,369; 6,107,610;
7,316,560; 7,367,796; 7,393,197;
7,404,713; 7,413,433; 7,458,795;
7,686,035

CANADA
2,062,903; 2,555,897

GERMANY
4028660; 4324275; 59905542;
102004033469; 102004043949; 
102005007398; 102005042850; 
102009012082; 10151693;

EUROPE
01304207; 05013232

JAPAN
2,093,613

PORTUGAL
103,447

CHINA
699628

FRANCE
2898392

HONG KONG
1098922

ITALY
1373692

MEXICO
267520; 278721

NETHERLANDS
1031334

SPAIN
2294920

SWITZERLAND
699628

TAIWAN
1305748

SINGAPORE
135987; 139597