Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12357849 | Personal respiratory protection device | — | 2025-07-15 |
| 12329994 | Respirator flow control apparatus and method | Andrew Murphy, Desmond T. Curran, Derek A. Parkin, Thomas I. Insley, Mark A. J. Fernandes | 2025-06-17 |
| D1057296 | Air supply attachment for a helmet | Benjamin A. Johnson, Paul A. Martinson, David J. Schmidt, David L. Ausen | 2025-01-07 |
| 11904189 | Respirator system including removable head suspension | Mark A. J. Fernandes, Richard D. Williams | 2024-02-20 |
| 11247079 | Personal respiratory protection device | Christopher P. Henderson | 2022-02-15 |
| 11241595 | Personal respiratory protection device | — | 2022-02-08 |
| 11154735 | Personal respiratory protection device | — | 2021-10-26 |
| 11130008 | Respirator flow control apparatus and method | Andrew Murphy, Desmond T. Curran, Derek A. Parkin, Thomas I. Insley, Mark A. J. Fernandes | 2021-09-28 |
| 10864389 | Respirator system including removable head suspension | Mark A. J. Fernandes, Richard D. Williams | 2020-12-15 |
| 10639506 | Personal respiratory protection device | Christopher P. Henderson | 2020-05-05 |
| 10441828 | Powered air-purifying respirator | Desmond T. Curran, Andrew Murphy, Terence M. Sayers, Christopher P. Henderson, Bengt Kallman | 2019-10-15 |
| 10391337 | Respirator assembly with air flow direction control | Desmond T. Curran, Andrew Murphy | 2019-08-27 |
| 10137320 | Respirator flow control apparatus and method | Andrew Murphy, Desmond T. Curran, Derek A. Parkin, Thomas I. Insley, Mark A. J. Fernandes | 2018-11-27 |
| 9868001 | Respirator flow control apparatus and method | Desmond T. Curran, Mark A. J. Fernandes | 2018-01-16 |
| D775322 | Respirator mask face seal with surface pattern | Steven Luke Bailey, Peter Masters | 2016-12-27 |
| D761415 | Respirator mask face seal | Peter Masters | 2016-07-12 |
| D760378 | Respirator mask face seal | Peter Masters | 2016-06-28 |
| D760377 | Respirator mask face seal | Peter Masters | 2016-06-28 |
| 8936022 | Air delivery apparatus for respirator hood | Andrew Murphy, Desmond T. Curran | 2015-01-20 |