Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1036416 | Control pack | David Lee Pratley | 2024-07-23 |
| D1001727 | Battery pack | David Lee Pratley | 2023-10-17 |
| D1000413 | Ear defender | David Lee Pratley | 2023-10-03 |
| D998592 | Ear defender ear cup | David Lee Pratley | 2023-09-12 |
| D998591 | Ear cup | David Lee Pratley | 2023-09-12 |
| 11554275 | Full face respirator | Matthew Neal Judson, Clive Johnstone | 2023-01-17 |
| D968365 | Ear defender | David Lee Pratley | 2022-11-01 |
| D921994 | Helmet strap | David Lee Pratley | 2021-06-08 |
| D918380 | Full face respirator | — | 2021-05-04 |
| D897045 | Helmet shell | David Lee Pratley | 2020-09-22 |
| D897047 | Helmet shell | David Lee Pratley | 2020-09-22 |
| D871680 | Helmet strap | David Lee Pratley | 2019-12-31 |
| D810276 | Respiratory mask with removable cover | David Lee Pratley, Richard James Fleming | 2018-02-13 |
| D803389 | Removable cover for a respiratory mask | David Lee Pratley, Richard James Fleming | 2017-11-21 |