Issued Patents All Time
Showing 1–25 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12329994 | Respirator flow control apparatus and method | Garry J. Walker, Andrew Murphy, Derek A. Parkin, Thomas I. Insley, Mark A. J. Fernandes | 2025-06-17 |
| 12245648 | Maintenance-free respirator that has concave portions on opposing sides of mask top section | John M. Facer, Christopher P. Henderson, Peter S. Leonard | 2025-03-11 |
| 11877604 | Maintenance-free respirator that has concave portions on opposing sides of mask top section | John M. Facer, Christopher P. Henderson, Peter S. Leonard | 2024-01-23 |
| 11130008 | Respirator flow control apparatus and method | Garry J. Walker, Andrew Murphy, Derek A. Parkin, Thomas I. Insley, Mark A. J. Fernandes | 2021-09-28 |
| 11052208 | Exhaust valve shroud for a personal protection respiratory device | Sabeel Ullah, Benjamin H. Cooper | 2021-07-06 |
| 10827787 | Maintenance-free respirator that has concave portions on opposing sides of mask top section | John M. Facer, Christopher P. Henderson, Peter S. Leonard | 2020-11-10 |
| 10441828 | Powered air-purifying respirator | Andrew Murphy, Garry J. Walker, Terence M. Sayers, Christopher P. Henderson, Bengt Kallman | 2019-10-15 |
| 10391337 | Respirator assembly with air flow direction control | Andrew Murphy, Garry J. Walker | 2019-08-27 |
| 10137320 | Respirator flow control apparatus and method | Garry J. Walker, Andrew Murphy, Derek A. Parkin, Thomas I. Insley, Mark A. J. Fernandes | 2018-11-27 |
| 9868001 | Respirator flow control apparatus and method | Garry J. Walker, Mark A. J. Fernandes | 2018-01-16 |
| D739008 | Powered air purifying respirator unit cover | Andrew Murphy, Christopher N. Findlay | 2015-09-15 |
| 9119979 | Method of controlling a powered air purifying respirator | Andrew Murphy, Alan Lee, Vladimir Dubrovskii, Bengt Kallman, Bengt Garbergs | 2015-09-01 |
| 8936022 | Air delivery apparatus for respirator hood | Garry J. Walker, Andrew Murphy | 2015-01-20 |
| D708734 | Respiratory mask | John M. Facer, Christopher P. Henderson, Audra A. Wilson | 2014-07-08 |
| 8375950 | Flat-folded personal respiratory protection devices and processes for preparing same | Graham J. Bostock, John W. Bryant, Christopher P. Henderson, Dennis L. Krueger, James F. Dyrud | 2013-02-19 |
| D666288 | Window in turbo unit cover | Michael Bainton, Martin Birath, Oskar Juhlin, Stuart James King, Andrew Murphy | 2012-08-28 |
| D657445 | Belt | Andrew Murphy, James J. May, Michael Bainton, Stuart James King | 2012-04-10 |
| 8146594 | Flat-folded personal respiratory protection devices | Graham J. Bostock, John W. Bryant, Christopher P. Henderson, Dennis L. Krueger, James F. Dyrud | 2012-04-03 |
| 7947109 | Powered air purifying respirator with battery passivation sensing/correction and method therefor | T. Mick Sayers | 2011-05-24 |
| D632375 | Air blowers | Andrew Murphy, Alan Lee, Daniel Paul Charles Tyce, James J. May, Michael Bainton +1 more | 2011-02-08 |
| 7819120 | Respiratory component mounting assembly | David S. Taylor, Peter Lee, Peter B. Allen, Scott R. Alexander | 2010-10-26 |
| D620104 | Personal respiratory protection device | John W. Bryant, Christopher P. Henderson | 2010-07-20 |
| D612337 | Remote controller | Andrew Murphy, Alan Lee, Daniel Paul Charles Tyce, James J. May, Michael Bainton +1 more | 2010-03-23 |
| 7497217 | Method of making a filter cartridge using a thermoforming step | Andrew S. Viner, Audra A. Conlan, Brian Cormack, Malcolm R. Watson, Christopher P. Henderson +1 more | 2009-03-03 |
| 7197774 | Supplied air helmet having face seal with differentiated permeability | Peter Lee, Richard D. Williams, Peter N. Yates, Derek S. Baker | 2007-04-03 |