| Patents for A62B 23 - Filters for breathing-protection purposes (3,172) |
|---|
| 09/24/1998 | WO1998041306A1 A filter element having a storage device for keeping track of filter usage and a system for use therewith |
| 09/23/1998 | EP0865314A1 Permeable, shaped structures of active particulate bonded with psa polymer microparticulate |
| 09/08/1998 | US5804295 Fibrous filtration face mask having corrugated polymeric microfiber filter layer |
| 09/08/1998 | US5803075 Surgical mask with adhesive strip to improve breathing |
| 09/02/1998 | CN2289575Y Disposable protective mask |
| 08/26/1998 | CN2288740Y Nose filter cover for purifying air |
| 08/25/1998 | US5797974 Respiratory filter and sampling device |
| 08/12/1998 | CN2287487Y Filter used in nose |
| 08/04/1998 | US5787884 Nasal and oral filters |
| 08/03/1998 | CA2196615A1 Air filtering cell |
| 07/30/1998 | WO1998032494A1 Pollution-proof masks for protection against dust, particles, noxious gases, acid rains and bacteria |
| 07/21/1998 | US5782234 Respiratory breathing filter apparatus and method |
| 07/07/1998 | US5776213 Respiratory filter and sampling device |
| 07/07/1998 | US5775335 Apparatus to diminish or eliminate snoring |
| 06/30/1998 | US5771885 Exercise filter |
| 06/23/1998 | US5769992 Process for the production of flexible surface filter material for dealing with noxious substances |
| 06/16/1998 | US5766287 Respiratory filter and sampling device |
| 06/16/1998 | US5766286 Respiratory filter and sampling device |
| 06/09/1998 | US5763078 Filter having corrugated nonwoven webs of polymeric microfiber |
| 06/03/1998 | EP0845554A2 Method of charging electret filter media |
| 05/27/1998 | CN2282441Y Rhinobyon filter |
| 05/19/1998 | US5753343 Corrugated nonwoven webs of polymeric microfiber |
| 05/05/1998 | US5746200 Trabecula nasal filter having both macropores and micropores |
| 04/28/1998 | US5744407 Photocatalytic face mask |
| 04/21/1998 | US5740798 Disposable nasal band filter |
| 04/07/1998 | US5736041 Filter element |
| 04/01/1998 | CN1177929A Flat-folded personal respiratory protection device and process for manufaturing same |
| 03/31/1998 | US5732695 Respirator filtration device |
| 03/18/1998 | EP0829293A1 Filter material and method of making a filter material |
| 02/11/1998 | CN1173139A Respirator having compressible press fit filter element |
| 02/11/1998 | CN1173138A Respirator and filter cartridge |
| 02/11/1998 | CN1173137A Respirator having snap-fit filter cartridge |
| 02/03/1998 | US5714126 Layer of adsorbing activated carbon, and layer of adsorbing activated carbon impregnated with a sulfate compound, a molybdenum compound, and a compound of zinc or copper |
| 01/28/1998 | EP0820745A2 Nasal dilator |
| 01/28/1998 | EP0820744A2 Nasal dilator |
| 01/28/1998 | EP0820743A2 Nasal dilator |
| 01/07/1998 | EP0814871A1 Flat-folded personal respiratory protection devices and processes for preparing same |
| 01/06/1998 | US5704349 Surgical face mask with darkened glare-reducing strip and visor |
| 12/31/1997 | CN2271379Y Dust-proof gauze mask |
| 12/30/1997 | US5701893 For filtering airborne materials |
| 12/09/1997 | US5696199 Pressure-sensitive adhesive polyacrylate polymer and method of making |
| 12/04/1997 | WO1997045154A1 Face mask with back-up smoke inhalation protection and method of operation |
| 12/04/1997 | CA2257092A1 Face mask with back-up smoke inhalation protection and method of operation |
| 12/03/1997 | CN2269224Y Simple filter type protective gauze mask |
| 11/26/1997 | CN2268539Y Portable air filter |
| 11/05/1997 | EP0804263A1 Respirator having snap-fit filter cartridge |
| 11/05/1997 | EP0804262A1 Respirator and filter cartridge |
| 11/05/1997 | EP0804261A1 Respirator having a compressible press fit filter element |
| 10/22/1997 | CN2265207Y Nose filter |
| 10/08/1997 | CN2264018Y Nasal plug |
| 10/08/1997 | CN2264017Y Multifunctional air purifying rebreather |
| 10/08/1997 | CN2264015Y Dust-proof bacteria prevention nasal plug |
| 10/07/1997 | US5674481 Restricting flow of airborne contaminants into nasal passage |
| 10/01/1997 | CN2263530Y Multifunction nasal cavity sanitation protection device |
| 09/23/1997 | US5669375 Breathing mask |
| 09/18/1997 | WO1997033652A1 Improved surgical mask with adhesive strip to improve breathing |
| 09/18/1997 | CA2248899A1 Improved surgical mask with adhesive strip to improve breathing |
| 09/04/1997 | DE19607656A1 Filter mask for filtering air for breathing |
| 09/03/1997 | CN2261266Y Sanitary health-care nose plug |
| 08/28/1997 | WO1997030754A1 Exercise filter |
| 08/28/1997 | DE19607306A1 Combined electrostatic and gas filtration system |
| 08/27/1997 | CN2260629Y Health-care rhinobyon |
| 08/26/1997 | US5660173 Frustum layered canister |
| 08/21/1997 | WO1997023246A3 High efficiency breathing mask fabrics |
| 08/12/1997 | US5656368 Fibrous filtration face mask having corrugated polymeric microfiber filter layer |
| 08/06/1997 | CN2258776Y Nose filter |
| 08/06/1997 | CN2258775Y Cleaner for breathing protection purpose |
| 08/06/1997 | CN1156412A Method and system of air filtration for fire fighter emergency smoke inhalation protection |
| 07/30/1997 | CN2258408Y Hidden type nose plug with cap |
| 07/29/1997 | US5651810 Apparatus and method for filtering and sampling airborne respiratory contaminants |
| 07/17/1997 | WO1997015376A3 Filtering |
| 07/09/1997 | CN2257488Y Nose filter |
| 07/08/1997 | US5645057 Meltblown barrier webs and processes of making same |
| 07/03/1997 | WO1997023246A2 High efficiency breathing mask fabrics |
| 07/03/1997 | CA2239789A1 High efficiency breathing mask fabrics |
| 07/02/1997 | EP0781600A2 Virus-removing filter |
| 07/02/1997 | EP0781156A1 Method of air filtration for fire fighter emergency smoke inhalation protection |
| 07/02/1997 | EP0781155A1 Nasal and oral filters |
| 06/17/1997 | US5639700 Thermal insulation containing corrugated nonwoven web of polymeric microfiber |
| 06/17/1997 | US5638810 Intraoral device |
| 06/12/1997 | WO1997020628A1 Permeable, shaped structures of active particulate bonded with psa polymer microparticulate |
| 06/10/1997 | US5636629 Nasal glove |
| 06/04/1997 | EP0776679A1 Mask maintaining warmth in nasal area |
| 05/29/1997 | WO1997018797A1 Electrostatically charged nasal application device and process |
| 05/29/1997 | CA2236864A1 Electrostatically charged nasal application device and process |
| 05/13/1997 | US5628308 Heat and fire resistant respiratory filtration mask |
| 05/06/1997 | US5626820 Clean room air filtering |
| 05/01/1997 | WO1997015376A2 Filtering |
| 04/15/1997 | US5620785 Meltblown barrier webs and processes of making same |
| 04/15/1997 | US5620545 Method of making a corrugated nonwoven web of polymeric microfiber |
| 04/15/1997 | US5619989 Respirator filter |
| 04/02/1997 | CN2250782Y Respiratory dust-proof nasal obstruction |
| 04/02/1997 | CN2250781Y 便携式空气过滤呼吸器 Portable air filter respirator |
| 03/26/1997 | EP0764452A2 Respiratory mask |
| 03/12/1997 | EP0761109A1 Breathing mask |
| 02/18/1997 | US5604339 Photooxidation of formaldehyde to carbon dioxide and water, using titanium dioxide catalyst treatment solution, to form a thin and translucent veneer on wooden surfaces |
| 01/29/1997 | EP0755277A1 Valved bronchoaspiration device for endotracheal tubes |
| 01/21/1997 | US5595174 Nasal adaptor, mask, and method |
| 01/15/1997 | EP0752901A1 Method of manufacturing flexible sheet filter material designed to keep out toxic substances, and use of the material |
| 01/08/1997 | CN2244414Y Concealed dustproof nose filter |