| Patents for A62D 9 - Composition of chemical substances for use in breathing apparatus (250) |
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| 06/03/2004 | WO2004046033A1 Spherical active carbon |
| 05/19/2004 | DE20306251U1 Adsorption filter material, e.g. used in air filters, comprises adsorption layer made from first activated charcoal layer with granular and/or spherical activated charcoal between first and second layers |
| 03/04/2004 | DE20312509U1 Breathing mask for protecting the respiratory tract from harmful materials such as viruses, bacteria or spores comprises an enzyme for splitting phosphoric acid esters immobilized on filter material layers |
| 02/26/2004 | WO2003072145B1 Method and apparatus for filtering and adsorbing biological and chemical agents |
| 02/26/2004 | US20040038802 A pre-carbonization of a polystyrene modified by divinylbenzene, crosslinked with sulfonic acid; an adsorbers, filters |
| 02/12/2004 | US20040025879 Method and apparatus for filtering and adsorbing biological and chemical agents |
| 01/21/2004 | CN1468801A Oxygen preparing process for portable respirator |
| 12/18/2003 | WO2003072145A3 Method and apparatus for filtering and adsorbing biological and chemical agents |
| 10/23/2003 | WO2003086478A1 Method and device for inactivating viruses |
| 10/23/2003 | US20030199018 Filtering material, having ionic copper Cu+ or Cu++ ions incorporated therein for inactivating HIV contained in fluid brought in contact, followed by a layer of activated charcoal for removal of copper ions; used to filter blood and milk |
| 10/23/2003 | US20030198945 Method and device for inactivating viruses |
| 10/23/2003 | CA2481565A1 Method and device for inactivating viruses |
| 10/22/2003 | CN1449848A Oxygen generator |
| 09/04/2003 | WO2003072145A2 Method and apparatus for filtering and adsorbing biological and chemical agents |
| 05/15/2003 | US20030092560 Method for producing spherical activated carbon |
| 01/22/2003 | EP1276694A1 Method for producing spherical activated carbon |
| 09/26/2002 | DE10160540A1 Double skinned protective clothing for the upper body, consists of a closed hollow section, an openable mouthpiece, an oxygen supply, and an absorption unit |
| 06/27/2002 | DE10065936A1 Production of activated charcoal beads for producing adsorbent, especially filter or protective material, comprising continuous carbonization of modified styrene-divinylbenzene polymer beads, batch pyrolysis and activation |
| 05/21/2002 | US6391429 Permeable shaped structures of active particulate bonded with PSA polymer microparticulate |
| 03/05/2002 | CA2107336C Chemical oxygen generator |
| 02/28/2002 | DE10040485A1 Production of activated charcoal beads for producing adsorbent, especially filter or protective material, comprising continuous carbonization of modified styrene-divinylbenzene polymer beads, batch pyrolysis and activation |
| 11/15/2001 | DE10020921A1 Production of activated charcoal beads for producing adsorbent, especially filter or protective material, comprising continuous carbonization of modified styrene-divinylbenzene polymer beads, batch pyrolysis and activation |
| 11/08/2001 | WO2001083368A1 Method for producing spherical activated carbon |
| 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 |
| 05/10/2000 | CN1252382A Oxygen generating agent for supplying oxygen to body |
| 03/14/2000 | CA2155799C Non-ozone depleting malodorous composition of matter and warning system |
| 12/23/1999 | DE19825776A1 Mercury absorbent face mask |
| 09/14/1999 | US5952420 Pressure-sensitive adhesive polyacrylate polymer microparticulate and method of making |
| 08/31/1999 | US5944873 Device for removing one or more undesirable or dangerous substances from a gas or vapor mixture and a gas mask comprising such a device |
| 08/11/1999 | CN2332425Y Multipurpose oxygen machine |
| 07/07/1999 | CN2327403Y Thermal reaction apparatus for producing oxygen from solid containing oxygen acid salts |
| 04/27/1999 | USRE36199 Using metal powder fuel, metal chlorate, oxide, hydroxide, carbonate oxygen sources |
| 09/23/1998 | EP0865314A1 Permeable, shaped structures of active particulate bonded with psa polymer microparticulate |
| 09/23/1998 | CN2291938Y 氧气发生器 Oxygen generator |
| 07/29/1998 | CN2286640Y Gas generator for domestic oxygen-inhalation apparatus |
| 07/23/1998 | WO1998031460A1 Multi-gas impregnated sorbent |
| 06/24/1998 | CN2284628Y Medical health oxygen producer |
| 04/29/1998 | EP0838243A1 Device for removing one or more undesirable or dangerous substances from a gas or a vapor mixture and a gas mask comprising such a device |
| 02/11/1998 | CN2274078Y Portable oxygen-medicine tank |
| 02/04/1998 | CN2273595Y Oxygen-rich respirator |
| 12/09/1997 | US5696199 Pressure-sensitive adhesive polyacrylate polymer and method of making |
| 11/19/1997 | CN1165045A Small-sized chamical oxygene generator |
| 11/05/1997 | CN1163786A Oxygen in pot |
| 10/15/1997 | CN2264600Y Once-used health and travelling oxygen-generating cylinder |
| 09/17/1997 | CN2262552Y Miniature oxygen supply apparatus |
| 09/17/1997 | CN2262437Y Atomizing oxygenerator |
| 09/09/1997 | CA1339442C Potassium superoxide pellet |
| 09/04/1997 | DE19607656A1 Filter mask for filtering air for breathing |
| 08/13/1997 | CN2259193Y Efficient oxygen-saving oxygen generator |
| 07/16/1997 | CN2257732Y Household small electrolytic oxygen producer |
| 06/12/1997 | WO1997020628A1 Permeable, shaped structures of active particulate bonded with psa polymer microparticulate |
| 02/19/1997 | CN2247546Y Portable oxygen cylinder |
| 11/06/1996 | EP0584160B1 Filter |
| 10/24/1996 | DE19514885A1 Stabilised adsorption air filter without binder on surface |
| 09/03/1996 | US5552088 Non-ozone depleting malodorous composition of matter and warning system |
| 09/07/1994 | CN1091671A Health gauze mask containing "Maifanshi" medical stone for preventing bacterium and peculiar smell |
| 08/16/1994 | US5338516 Chemical oxygen generator |
| 05/04/1994 | CN1024411C Xoygen-generating process |
| 03/24/1994 | EP0584160A4 Filter. |
| 03/02/1994 | EP0584160A1 Filter. |
| 02/09/1994 | EP0581829A1 Chemical oxygen generator |
| 03/30/1993 | US5198147 Candles for breathable oxygen |
| 01/27/1993 | EP0317593B1 Process, filter and device for supplying high-quality breathing air |
| 01/27/1993 | CN2126620Y 改进型应急供氧装置 Improved emergency oxygen device |
| 11/15/1992 | WO1992020406A1 Filter |
| 11/15/1992 | CA2104579A1 Filter |
| 10/29/1992 | WO1992018423A1 Chemical oxygen generator |
| 09/30/1992 | CN1064817A Portable high-speed oxygen-generating life-saving apparatus |
| 06/23/1992 | US5124856 Magnetic recording device with unitary filter medium to trap organic and inorganic chemical pollutants |
| 06/09/1992 | US5119808 Protective device, antismooke hood, used in unbreathable atmosphere |
| 05/19/1992 | US5113856 Impregnation for respirator filters filled with active carbon |
| 04/29/1992 | CN1060635A Oxygen-generating process |
| 02/27/1992 | DE4026768A1 Respiration mask - is coated with mixed catalyst destroying ozone in air |
| 02/19/1992 | EP0471467A1 Unitary filter medium to trap organic and inorganic chemical pollutants |
| 01/07/1992 | US5078132 Bonded adsorbent structures and respirators incorporating same |
| 10/22/1991 | US5058578 Simplified gas mask |
| 10/09/1991 | EP0450414A2 Impregnation for breathing protection filter with active carbon |
| 10/09/1991 | EP0450144A1 Breathing protection apparatus with protective hood made of coated fabric |
| 07/23/1991 | US5033465 Bonded adsorbent structures and respirators incorporating same |
| 07/09/1991 | US5029578 Oxygen breathing apparatus simulator |
| 05/14/1991 | US5015451 Process, filter and device for making available high-quality breathing air |
| 04/23/1991 | US5009872 Method of oxidizing gaseous substances |
| 03/05/1991 | US4997803 Calcium oxide, phosphate |
| 02/05/1991 | CA1279861C Catalyst assembly |
| 07/26/1990 | DE3901062A1 Carbon dioxide-absorbing composition |
| 05/30/1990 | EP0370141A1 Method and apparatus for removing cyanogen chloride from air |
| 05/10/1990 | DE3837432A1 Chemical composition generating oxygen for respirators |
| 03/20/1990 | CA1266854A1 Bonded adsorbent structures and respirators incorporating same |
| 09/19/1989 | US4867902 Microencapsulated oxygen generators |
| 08/15/1989 | US4856509 Face mask and method |
| 05/31/1989 | EP0317593A1 Process, filter and device for supplying high-quality breathing air. |
| 05/23/1989 | US4832926 Chlorine gas filtering material suitable for use in a chemical oxygen generator and method of making |
| 04/06/1989 | DE3730922A1 Chemisorption composition for eliminating odours and smoke residues, preferably tobacco smoke |
| 04/05/1989 | EP0309594A1 A method of generating oxygen gas for emergency use |
| 04/04/1989 | US4817597 Self-contained closed-circuit oxygen-generating breathing apparatus |
| 03/09/1989 | DE3728423A1 Filter for eliminating bacteria, viruses and air pollutants, preferably for occupied spaces |
| 02/23/1989 | DE3726762A1 Filter for ventilating automobile cabins |
| 02/07/1989 | US4802898 Method and apparatus for removing cyanogen chloride from air |
| 02/02/1989 | DE3724671A1 Generation of germ-free air in hospitals for ventilation of patients |
| 02/02/1989 | DE3724050A1 Allergen-free air humidifier |