Patents

U.S.
No. 9,820,682
No. 10,010,282
No. 10,143,412
No. 10,143,413
No. 10,827,964
No. 10,959,655
No. 11,185,266

International
No. 3324845
No. 257137
No. 3562397
No. 6643474
No. 6734490
No. 40019673
No. 10,827,964
No. 3562397
No. ZL20202 0568271.8

Other U.S. and foreign patents pending.