Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11540567 | Filter frame | Stephen Francis Sanders, Matthew Neal Judson, Clive Johnstone | 2023-01-03 |
| D925724 | Respiratory mask | Matthew Neal Judson | 2021-07-20 |
| D899585 | Respiratory mask | Matthew Neal Judson | 2020-10-20 |