| Patents for A62B 23 - Filters for breathing-protection purposes (3,172) |
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| 05/29/2001 | US6238466 Electret articles and filters with increased oily mist resistance |
| 05/23/2001 | EP1100592A1 Face mask that has a filtered exhalation valve |
| 05/23/2001 | EP1100591A1 Air filter device provided with gripping means in the form of a mouthpiece |
| 05/10/2001 | WO2001032265A2 Filter mask |
| 05/10/2001 | DE19950717A1 Breathing mask comprises a mask body, a porous insert with a water-binding impregnating material, and a pocket made of gas-permeable material |
| 05/03/2001 | WO2001030491A1 Broad spectrum filter system for filtering contaminants from air or other gases |
| 05/03/2001 | WO2001030449A1 Retention assembly with compression element and method of use |
| 05/03/2001 | CA2641142A1 Retention assembly with compression element and method of use |
| 05/02/2001 | CN1065299C Wool filter for dustproof mask |
| 04/26/2001 | WO2001028634A1 Manner of attaching component elements to filtration material such as may be utilized in respiratory masks |
| 04/26/2001 | DE19950067A1 Parallel folded filter for filtering purposes comprises pre-folded elliptical filter section, peripheral contour having circular shape and an annular filter housing |
| 04/17/2001 | US6216695 Disposable surgical face mask with retractable eye shield |
| 04/17/2001 | US6216694 Stuff-in type nose plug with air filters |
| 04/17/2001 | US6216693 Respirator having a compressible press fir filter element |
| 04/10/2001 | US6214094 Nonwoven web comprising electret fibers that comprise a polymer and performance-enhancing additive; useful in respirators |
| 04/10/2001 | US6213121 Nasal filtration system |
| 04/03/2001 | US6209541 Hydrophobic electrostatic breathing filters, and methods of manufacturing the same |
| 03/29/2001 | WO2001021283A1 Filtration media and the manufacture thereof |
| 03/29/2001 | CA2383975A1 Filtration media and the manufacture thereof |
| 03/15/2001 | WO2001017598A1 Therapeutic process and apparatus for nasal passages |
| 03/14/2001 | CN2422976Y Device for applying medicine to nasal cavity |
| 03/01/2001 | WO2001014042A1 Oily-mist resistant filter that has nondecreasing efficiency |
| 03/01/2001 | CA2381060A1 Oily-mist resistant filter that has nondecreasing efficiency |
| 02/28/2001 | CN2421035Y Antifogging gauze mask |
| 02/22/2001 | DE19938610A1 Nasenfilter und Verfahren zu dessen Herstellung A nasal filter and process for its preparation |
| 02/21/2001 | EP1077074A2 Nose filter and process for producing the same |
| 02/21/2001 | CN2420020Y Purifier for breathing |
| 02/13/2001 | US6186140 Respiratory filter element having a storage device for keeping track of filter usage and a system for use therewith |
| 02/06/2001 | US6182659 Comprising a virus-capturing body containing streptococcus algalactiae type ii culture and type ii polysaccharide; can be worn over nose as mask, to remove influenza virus, for example |
| 01/31/2001 | CN2416913Y Internal placed type dust-proof, waste gas proof nose mask |
| 01/25/2001 | WO2001005342A1 The health mask |
| 01/24/2001 | EP0755277A4 Valved bronchoaspiration device for endotracheal tubes |
| 01/24/2001 | CN2415780Y Portable air purifier |
| 01/18/2001 | WO2001003775A2 Disposable filtering face mask and method of making same |
| 01/16/2001 | US6173712 Disposable aerosol mask with disparate portions |
| 12/28/2000 | WO2000078430A2 Charge stabilized electret filter media |
| 12/28/2000 | CA2375574A1 Charge stabilized electret filter media |
| 12/27/2000 | CN2411811Y Multi-prevention gauze mask |
| 12/19/2000 | US6161540 Respirator filter having a pleated filter layer |
| 12/14/2000 | WO2000074509A1 Face masks having an elastic and polyolefin thermoplastic band attached thereto by heat and pressure |
| 12/14/2000 | CA2373032A1 Face masks having an elastic and polyolefin thermoplastic band attached thereto by heat and pressure |
| 12/13/2000 | CN2409993Y Decorative filtering nose ring structure |
| 12/13/2000 | CN2409992Y Miniature respiratory protector |
| 12/07/2000 | WO2000072921A1 Face mask with fan attachment |
| 12/07/2000 | CA2374925A1 Face mask with fan attachment |
| 12/06/2000 | EP1057501A2 Respirator having a compressible press fit filter element |
| 11/16/2000 | WO2000067848A1 Device for positioning a protective and/or filtering element |
| 11/14/2000 | US6146449 Reusable canister for a gas mask |
| 11/09/2000 | WO2000066248A1 Stackable filter device |
| 11/01/2000 | CN1272069A Oily mist resistant electret articles and filters |
| 10/18/2000 | CN2401209Y Breathing filter |
| 10/11/2000 | CN2400133Y Hidden nosepiece |
| 10/04/2000 | CN2399046Y Mouth breathing auxiliary device |
| 10/03/2000 | US6125849 Respiratory masks having valves and other components attached to the mask by a printed patch of adhesive |
| 09/27/2000 | CN1056778C Respirator having compressible press fit filter element |
| 09/26/2000 | US6123077 Flat-folded personal respiratory protection devices and processes for preparing same |
| 09/26/2000 | US6123076 Hydrophobic barrier for filters and filter media |
| 09/19/2000 | US6119691 Electret filter media |
| 09/19/2000 | US6119690 Nostril filter system |
| 09/13/2000 | CN2395748Y Dust filter for human health |
| 09/13/2000 | CN2395747Y Composite self-suction filtering type gauze mask for preventing dust and particle |
| 09/12/2000 | US6116236 Respirator |
| 09/08/2000 | WO2000051712A1 Filter support, assembly and system |
| 08/30/2000 | EP1030721A1 Respiratory masks having valves and other components attached to the mask by a printed patch of adhesive |
| 08/30/2000 | EP0892637A4 Electrostatically charged nasal application device and process |
| 08/29/2000 | US6109262 Nasal and oral filters |
| 08/15/2000 | CA2109953C Nasal dilator |
| 08/09/2000 | CN2390628Y Optical contact static mask |
| 08/08/2000 | US6098624 Simple mask for protection of respiratory system |
| 07/26/2000 | CN1054778C Respiralor having snap-fit filter cartridge |
| 07/19/2000 | EP1019173A1 Oily mist resistant electret articles and filters |
| 07/05/2000 | EP1014816A1 Respiratory masks having comfortable inner cover web |
| 07/05/2000 | CN2385746Y Combined multifunction intranasal respiration purification therapeutic equipment |
| 06/28/2000 | CN2384636Y Dust-filtering box for dustproof mouthpiece |
| 06/21/2000 | CN2383538Y Nostril purifying obstruction |
| 06/14/2000 | EP1007155A4 Improved surgical mask with adhesive strip to improve breathing |
| 06/14/2000 | EP1007155A1 Improved surgical mask with adhesive strip to improve breathing |
| 06/07/2000 | CN2381349Y Mask with multiple protective liquid filtering |
| 06/07/2000 | CN2381348Y Filtering film for dustproof mask |
| 06/06/2000 | US6070578 Breath odor eliminator mask |
| 05/25/2000 | WO2000029232A1 Filter |
| 05/25/2000 | WO2000029066A1 Disposable nose filter |
| 05/25/2000 | DE19853547A1 Mouth-shield against oral infection is made of soft expandable material and has stretch holder bands and stimulation knobs |
| 05/25/2000 | CA2319184A1 Filter |
| 05/24/2000 | EP1001830A1 Filtering face mask having one or two straps |
| 05/17/2000 | CN2378070Y Nose air filter |
| 05/16/2000 | US6062220 Reduced fogging absorbent core face mask |
| 05/04/2000 | WO2000024469A1 Flexible respirator filter |
| 05/03/2000 | CN1052042C Method for charging electric filter media |
| 05/03/2000 | CA2252323A1 Stuff-in type nose plug with air filters |
| 05/02/2000 | US6057256 Web of biocomponent blown fibers |
| 05/02/2000 | US6055983 Respirator filtration device |
| 04/26/2000 | CN2375333Y Nosepiece |
| 04/20/2000 | DE19845526A1 Filtermaterial für fluide Medien sowie Verfahren und Vorrichtung zur Herstellung eines solchen Filtermaterials Filter material for fluid media as well as methods and apparatus for making such a filter material |
| 04/13/2000 | WO2000020099A1 Filtering material for fluidic media and a method and device for producing such a filtering material |
| 04/12/2000 | CN2373118Y Filter for nasal cavity |
| 04/12/2000 | CN2373117Y Dust-proof health-care nose marsk |
| 04/05/2000 | CN2372000Y Ball type nose filter |
| 04/05/2000 | CN2371993Y Oxygenerator |
| 03/30/2000 | DE19806052C2 Inhalationsmaske Inhalation mask |