| Patents for A62B 23 - Filters for breathing-protection purposes (3,172) |
|---|
| 03/29/2000 | CN2370892Y Hidden dust-filtering nasal obstruction |
| 03/29/2000 | CN2370891Y Respiration purifier |
| 03/28/2000 | US6041782 Respiratory mask having comfortable inner cover web |
| 03/15/2000 | CN2368543Y Purifier for air in nasal cavity |
| 03/03/2000 | CA2273765A1 Respirator filter protective cover |
| 03/01/2000 | CN2366132Y Insertion type noose cover with air purifying means |
| 02/23/2000 | CN2364903Y Nose cover |
| 02/03/2000 | WO2000004958A1 Air filter device provided with gripping means in the form of a mouthpiece |
| 02/03/2000 | WO2000004957A1 Face mask that has a filtered exhalation valve |
| 02/03/2000 | WO1999048562A8 Nose protection element |
| 02/03/2000 | CA2337434A1 Face mask that has a filtered exhalation valve |
| 02/02/2000 | EP0975410A1 A filter element having a storage device for keeping track of filter usage and a system for use therewith |
| 02/02/2000 | CN1048903C Flat-folded personal respiratory protection device and process for manufacturing same |
| 02/01/2000 | CA2124192C Chromium-free impregnated activated universal respirator carbon for adsorption of toxic gases and/or vapors |
| 01/26/2000 | CN2360113Y Light weight filtering gas mask |
| 01/18/2000 | US6015425 Nasal air freshener for dental patients |
| 01/13/2000 | CA2239431A1 Enviroprotech |
| 01/05/2000 | DE19827051A1 Filter mask with support for e.g. dentists surgeries |
| 01/04/2000 | US6010766 Shape retaining fibers thermally bonded; composite |
| 12/30/1999 | DE19827180A1 Filter mask used during medical operations |
| 12/29/1999 | CN2355736Y Disposable air filter film |
| 12/23/1999 | WO1999065347A1 Fire escape mask |
| 12/23/1999 | DE19825776A1 Mercury absorbent face mask |
| 12/07/1999 | US5996580 Personal emergency breathing system with locator for supplied air respirators and shock resistant filter mounting |
| 11/24/1999 | CN1046637C Respirator and filter cartridge |
| 11/17/1999 | EP0956067A1 Face mask with back-up smoke inhalation protection and method of operation |
| 11/17/1999 | EP0781156A4 Method of air filtration for fire fighter emergency smoke inhalation protection |
| 11/11/1999 | WO1999048562A3 Nose protection element |
| 11/04/1999 | WO1999055422A1 Respirator filter having a pleated filter layer |
| 11/04/1999 | WO1999055179A1 Disposable aerosol mask with disparate portions |
| 11/04/1999 | CA2295170A1 Respirator filter having a pleated filter layer |
| 10/27/1999 | CN2345235Y Rhinobyon type air purifier |
| 10/13/1999 | CN2342837Y Gas nasal cover |
| 10/12/1999 | US5964218 For emergency response personnel |
| 10/06/1999 | CN2341668Y New stereo mask |
| 10/06/1999 | CN2341667Y Liquid driven air filter for breathing |
| 10/05/1999 | US5961778 Corrugating apparatus |
| 09/30/1999 | WO1999048562A2 Nose protection element |
| 09/21/1999 | US5955193 Apparel containing corrugated microfiber-containing thermal insulation |
| 09/14/1999 | US5952420 Pressure-sensitive adhesive polyacrylate polymer microparticulate and method of making |
| 09/09/1999 | DE19806052A1 Inhalation mask for administration of medicaments |
| 09/07/1999 | US5947119 Nasal air flow control device |
| 09/07/1999 | CA2109898C Disposable aerosol mask |
| 09/01/1999 | CN2335662Y Concealed nose filter |
| 09/01/1999 | CN2335661Y High-efficiency gas filter |
| 08/25/1999 | CN2334434Y Dust-proof toxicity-resistant antibiotic nose plug |
| 08/25/1999 | CN1226452A Gas dealkalizing filter and manufacture and use thereof |
| 08/24/1999 | US5941244 Dustproof mask |
| 08/12/1999 | DE19803921A1 Face mask filter absorbing mercury |
| 08/04/1999 | CN2331379Y Nasal filter |
| 07/28/1999 | EP0588949B1 Nasal dilator |
| 07/21/1999 | CN2329383Y Dusting prevention nose mask |
| 06/30/1999 | EP0781155A4 Nasal and oral filters |
| 06/30/1999 | EP0614400B1 Chromium-free impregnated activated universal respirator carbon for adsorption of toxic gases and/or vapors |
| 06/16/1999 | CN1219883A Face mask with back-up smoke inhalation protection and method of operation |
| 05/20/1999 | WO1999024119A1 Respiratory masks having valves and other components attached to the mask by a printed patch of adhesive |
| 05/20/1999 | CA2309173A1 Respiratory masks having valves and other components attached to the mask by a printed patch of adhesive |
| 05/19/1999 | CN2319082Y Breath filter |
| 05/06/1999 | DE19747530A1 Nose filter for persons suffering allergies |
| 04/08/1999 | WO1999016532A1 Oily mist resistant electret articles and filters |
| 04/08/1999 | CA2303004A1 Oily mist resistant electret articles and filters |
| 04/07/1999 | CN2312727Y Dust-proof respirating device and respiratory therapeutic device |
| 04/06/1999 | US5890491 Nose filter |
| 03/30/1999 | CA2003895C Filtre intra-nasal |
| 03/11/1999 | WO1999011326A1 Improved nose filter |
| 03/10/1999 | EP0900553A2 Nasal dilater |
| 03/10/1999 | EP0714463B1 Method of charging electret filter media |
| 03/10/1999 | CN1042398C Magnetic dust-proof gauze mask |
| 02/24/1999 | CN1209178A High efficiency breathing mask fabrics |
| 02/17/1999 | CN2307594Y Protective and therapeutic equipment for nose |
| 02/11/1999 | WO1999006116A1 Filtering face mask having one or two straps |
| 02/10/1999 | CN2306797Y Breathing purifier |
| 02/10/1999 | CN1207326A Dust-proof mask |
| 02/03/1999 | EP0894511A2 Dustproof mask |
| 01/27/1999 | EP0892637A1 Electrostatically charged nasal application device and process |
| 01/26/1999 | US5863312 Non-entraining filter |
| 01/21/1999 | WO1998046310A3 Method and device for the protection of the human respiratory or gans |
| 01/06/1999 | CN2302815Y Nose insertion type air filtration apparatus |
| 12/30/1998 | WO1998058558A1 Respiratory masks having comfortable inner cover web |
| 12/30/1998 | CN2302028Y Health nose filter |
| 12/30/1998 | CN2302027Y Personal smokeproof fire-fighting life-saving helmet |
| 12/23/1998 | EP0885644A1 Virus-removing filter |
| 12/22/1998 | US5851395 Virus-removing filter |
| 12/15/1998 | US5848592 Air filter |
| 12/09/1998 | CN2299635Y Nasal air purifying and medicine inhaling device |
| 12/02/1998 | CN2298826Y Nose filter |
| 11/25/1998 | EP0879081A2 Filtering |
| 11/25/1998 | CN2298032Y Multifunction rhinobyon filter |
| 11/18/1998 | CN2297210Y Nose paster with filter |
| 11/17/1998 | CA2020503C Chemical cartridge for protective respiratory mask |
| 11/12/1998 | DE19719733A1 Wearable breathing gas-filter system |
| 11/03/1998 | US5830311 Corrugating apparatus |
| 10/28/1998 | EP0752901B1 Method of manufacturing flexible sheet filter material designed to keep out toxic substances, and use of the material |
| 10/22/1998 | WO1998046310A2 Method and device for the protection of the human respiratory or gans |
| 10/20/1998 | US5823188 Heat and fire resistant respiratory filtration mask |
| 10/14/1998 | CN2294072Y Nose filter for dust-proof |
| 10/08/1998 | DE19714001A1 Nasal insert for keeping nostrils clear |
| 10/07/1998 | EP0868553A2 High efficiency breathing mask fabrics |
| 10/06/1998 | US5817584 High efficiency breathing mask fabrics |
| 10/06/1998 | CA2144000C A protective-respirator filter |