U.S. Patent Nos: 8,699,779; 8,977,571; 7,962,411; 7,873,200;7,876,949; 7,885,451; 7,900,822; 7,912,785; 7,949,587; 7,970,677; 7,974,899;8,290,237; 8,320,657; 8,351,677; 8,351,678; 8,374,963; 8,391,599; 8,422,758;8,452,689; 8,688,579; 8,708,227; 8,732,081; 9,159,101; 9,177,197; 9,177,198;9,224,136; 9,401,011; 9,818,090; 9,898,808; 7,620,604; 7,698,222; 7,792,752;7,856,402; 7,885,880; 7,896,232; 7,996,314; 7,996,315; 7,996,316; 8,001,051;8,046,301; 8,235,284; 8,358,826; 8,392,332; 8,433,127; 8,464,933; 8,538,124;8,542,921; 8,611,635; 8,799,147; 8,837,806; 8,959,033; 9,058,512; 9,129,340;9,286,514; 9,336,517; 9,569,756; 9,619,872; 9,626,662; 9,779,392; 9,779,452;9,892,454; 9,898,778; 9,904,848; 10,013,681; 10,013,605; 9,946,923; 10,460,295;10,402,638; 10,380,559;10,354,235; 10,360,448; 10,402,790; 10,373,136;10,235,660; 10,380,683; 10,380,565; 10,380,993; 10,482,432; 10,380,562;10,552,810; 10,521,781; 10,504,185; 10,621,559; 10,506,281; 10,574,879;10,621,660; 10,719,815; 10,713,629; 10,460,381; 10,706,466; 10,769,598;10,810,561; 10,769,603; 10,915,879; 10,839,358; 10,956,728; 10,818,282; 10,855,914;10,848,665; 10,896,408; 11,030,752; 11,023,719; 11,062,130; 11,062,131;11,062,283; 11,064, 111; 11,068,976; 11,070,868; 11,144,753; 11,182,753;11,250,398; 11,216,884; 11,232,517; 11,222,315; 11,281,903;11,295,377; 11,295,378; 11,321,678; 11,321,679; 11,328,267; 11,341,465;11,348,075; 11,373,149; 11,373,150; 11,398,215; 11,429,949; 11,461,743; 11,488,405; 11,531,973; 11,538,015; 11,544,682; 11,544,944; 11,562,332; 11,625,770; 11,682,221; 11,682,222; 11,893,628; 12,002,016; 12,008,522; 12,062,088; 12,067,624; 12,131,300; 12,159,310; 12,182,791; 12,211,015; 12,211,095; 12,307,425.
Other patents pending.