United States patent numbers:
7,042,118; 7,638,892; 8,169,118; 8,183,854; 8,378,543; 8,384,232; 8,384,232; 8,395,288; 8,400,005; 8,482,174; 8,564,281; 8,739,538; 8,801,361; 8,801,361; 8,896,251; 9,024,494; 9,093,871; 9,203,269; 9,531,236; 9,559,565; 9,683,601; 9,951,683; 9,985,502; 10,358,974; 10,358,974; 10,508,932; 10,910,957; 11,005,336; 11,081,918; 11,081,919; 11,262,405; 11,572,920; 11,594,937; 11,611,263; 11,619,140; 11,686,223; 11,795,873; 11,994,115; 12,000,291; 12,027,732; 12,104,493; 12,212,214; 12,258,887; 12,286,953; 12,289,034; 12,316,197; 20,220,389,831
