| Patents for A62B 23 - Filters for breathing-protection purposes (3,172) |
|---|
| 06/26/1985 | EP0145849A1 Filter paper |
| 06/25/1985 | CA1189459A1 Powered air respirator and cartridge |
| 06/11/1985 | US4522639 Unified filter and connector housing assembly incorporating a diversion valve |
| 05/28/1985 | US4519301 For use with a filter module |
| 04/24/1985 | EP0138556A2 Web of bicomponent blown fibers |
| 04/17/1985 | EP0137299A2 Flocked fabric laminate for protection against chemical agents |
| 03/28/1985 | WO1985001216A1 Nose filter |
| 02/26/1985 | US4501272 Mask |
| 01/22/1985 | US4495030 Filter paper |
| 11/14/1984 | EP0124994A2 Emergency mask |
| 11/07/1984 | EP0124263A2 Emergency mask |
| 09/25/1984 | US4473072 Ready use respirator |
| 08/28/1984 | US4467795 Breathing device package |
| 08/14/1984 | CA1172578A1 Gas filter container |
| 07/31/1984 | US4462399 Powered air respirator and cartridge |
| 07/10/1984 | US4459332 Flocked fabric laminate for protection against chemical agents |
| 06/27/1984 | EP0112247A2 Method and equipment for the production of filter elements, in particular of respiratory masks |
| 06/19/1984 | US4455187 Filter sheet material and method of making same |
| 05/30/1984 | EP0109514A1 Improved single-element filter and respirator |
| 04/25/1984 | EP0106013A1 Escape filtering apparatus having a breathing filter in a half mask |
| 12/06/1983 | US4419110 Filtering toxic gases |
| 10/18/1983 | CA1155406A1 Aerosol filter cartridge |
| 10/05/1983 | EP0090073A2 Process for making a flexible, air-permeable, textile, flat sheet-like filter for protective suits |
| 08/31/1983 | EP0086871A2 Respiratory apparatus with protective hood |
| 08/30/1983 | US4401117 Therapeutic appliance |
| 06/22/1983 | EP0081625A2 Breathing protection filter |
| 06/21/1983 | CA1148482A1 Respirator cartridge |
| 05/04/1983 | EP0078110A2 Powered air respirator and filter cartridge therefor |
| 02/22/1983 | CA1141653A1 Liquid barrier filter |
| 11/23/1982 | US4360018 Anesthesia system and method of filtering respiratory gas |
| 10/19/1982 | US4354489 Individual nose and mouth filters |
| 09/21/1982 | US4350507 Respirable particle sampling instruments |
| 06/15/1982 | US4334901 Respirator cartridge |
| 05/04/1982 | US4327719 Nose filter |
| 04/27/1982 | CA1122546A1 Melt-blown fibrous electrets |
| 03/16/1982 | CA1119975A1 Portable air filtering and breathing assist device masks |
| 12/08/1981 | US4304230 Liquid barrier filter and method of operation |
| 11/24/1981 | CA1112979A1 Breathing apparatus chemical canister with dust seal |
| 10/13/1981 | US4294599 Air cleaner |
| 06/09/1981 | US4271834 Disposable portable mask for emergency use |
| 05/19/1981 | US4267831 Nasal air filter and medicament dispenser device |
| 05/05/1981 | CA1100294A1 Devices for treating gaseous material |
| 12/23/1980 | US4240420 Nose and mouth filter combination |
| 11/04/1980 | US4231364 Respiratory control |
| 09/16/1980 | CA1085695A1 Nasal device |
| 09/09/1980 | US4221217 Nasal device |
| 09/02/1980 | US4220150 Nasal dust filter |
| 08/05/1980 | US4215682 Melt-blown fibrous electrets |
| 07/22/1980 | US4213769 Energy transfer and air purifying devices |
| 07/15/1980 | US4212846 Breathing apparatus chemical canister with dust seal |
| 06/17/1980 | US4207882 Filter apparatus for welding mask |
| 01/01/1980 | US4181512 For use in anesthesiology and respiratory care systems |
| 12/18/1979 | US4179274 Respirator filter and method of making the same |
| 10/30/1979 | US4172709 Anesthesiology and respiratory care systems to filter fluid flows |
| 10/23/1979 | US4171962 Bacteria filters with transparent housings |
| 10/16/1979 | CA1064201A1 Smoke mask apparatus |
| 05/22/1979 | US4155359 Air filtering mask |
| 03/27/1979 | US4146026 Filter mask |
| 02/27/1979 | US4141703 Air-pollution filter and face mask |
| 01/09/1979 | US4133656 Anesthesiology and respiratory care systems |
| 10/24/1978 | CA1041073A1 Supported three-dimensional arrangement of particles |
| 07/04/1978 | US4098270 Smoke mask apparatus |
| 05/09/1978 | US4088461 Combination of a supplementary filter and respirator filter |
| 04/18/1978 | US4084949 Surgical face mask filtering medium |
| 01/31/1978 | US4071026 Intra-oral filtering device |
| 12/27/1977 | US4064876 Air-pollution filter and face mask |
| 10/25/1977 | US4055696 Porous polypropylene hollow filaments and method making the same |
| 10/11/1977 | US4052983 Nasal filter |
| 07/12/1977 | US4035164 Methods for removing charged and non-charged particles from a fluid by employing a pyrollectric filter |
| 06/21/1977 | US4030491 Nasal filter |
| 01/25/1977 | US4004584 Facially-worn breathing filter |
| 07/27/1976 | US3971373 Particle-loaded microfiber sheet product and respirators made therefrom |