| S. No. | Patent identifier |
|---|---|
| 1 | US20150104851A1 |
| 2 | US4560802 |
| 3 | US20190119665A1 |
| 4 | US8932839 |
| 5 | US9447404 |
| 6 | US10190112 |
| 7 | US20160340666 |
| 8 | EP18203725A2 |
| 9 | US20120237991A1 |
| 10 | US20150104851 |
| 11 | US20160340666A1 |
| 12 | EP18203725 |
| 13 | US4451392 |
| 14 | US4560791 |
| 15 | US20120237991 |
