| Patents for H01T 23 - Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere (2,972) |
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| 10/26/1999 | US5973905 Negative air ion generator with selectable frequencies |
| 10/13/1999 | EP0789666B1 Device for generating ozone |
| 09/30/1999 | DE19812852A1 Ion tube system for air disinfection and purification |
| 09/29/1999 | EP0944941A1 Device to produce active oxygen ions in the air for improved air quality |
| 09/22/1999 | EP0835222B1 A method and device for producing ozone |
| 09/07/1999 | US5950065 Method and device for producing ozone |
| 09/07/1999 | US5948374 Ozone generating apparatus |
| 08/24/1999 | US5942196 Large capacity with simplified structure |
| 08/18/1999 | CN1226128A Apparatus and method for producing high voltage for gas ionization |
| 08/11/1999 | CN2333105Y Soft type safety negative ion generator |
| 08/05/1999 | DE19807353A1 Air ionization apparatus |
| 07/27/1999 | US5930105 Method and apparatus for air ionization |
| 07/22/1999 | WO1999037126A1 Self-balancing shielded bipolar ionizer |
| 07/22/1999 | CA2314083A1 Self-balancing shielded bipolar ionizer |
| 07/07/1999 | EP0888135A4 Ozone sterilizer and generator |
| 06/30/1999 | EP0925837A2 Power processor circuit and method for corona discharge pollutant destruction apparatus |
| 06/24/1999 | DE19755681A1 Air ionization arrangement |
| 06/10/1999 | DE19749070C1 Ionisation rod |
| 05/20/1999 | WO1999025160A1 Method and apparatus for air ionization |
| 04/20/1999 | US5895632 Discharging and dust removing method and discharging and dust removing apparatus |
| 04/14/1999 | CN2314494Y High performance negative oxygen ion generator |
| 04/08/1999 | DE19743638A1 Ion source made from fine metal wire point |
| 03/31/1999 | CN2312518Y Low temp. plasma discharging tube |
| 03/09/1999 | US5880916 Refine on the generate corona discharges |
| 03/04/1999 | WO1999010273A1 Deodorizing/sterilizing device |
| 02/25/1999 | DE19736288A1 Ion room-conditioning ceiling electrode |
| 02/25/1999 | DE19735881A1 Annular electrode for thin metal wire tip etching |
| 02/17/1999 | CN1208393A Ozone generator |
| 01/27/1999 | EP0893406A2 Ozone generating apparatus |
| 01/27/1999 | EP0893405A2 Ozone generating apparatus |
| 01/20/1999 | EP0891941A2 Ozone generating apparatus |
| 01/19/1999 | US5861127 Portable air purifying apparatus |
| 01/07/1999 | EP0888135A1 Ozone sterilizer and generator |
| 12/16/1998 | EP0771483B1 Plasma superconfinement generator for producing positive or negative ions in a gaseous medium |
| 12/08/1998 | US5847917 For generating positive/negative ions to eliminate static electricity |
| 12/08/1998 | US5847514 Apparatus for generating negative ions with a lid and a casing |
| 12/08/1998 | US5845488 Power processor circuit and method for corona discharge pollutant destruction apparatus |
| 11/04/1998 | EP0815050B1 Process and device for generating gaseous oxygen anionic radicals |
| 10/28/1998 | EP0873968A1 Ozone generator |
| 09/08/1998 | US5805407 Charge eliminating apparatus for a moving web |
| 08/20/1998 | DE19707612A1 Arrangement for ionising oxygen molecules in air with negative electrical charge |
| 08/04/1998 | US5789749 Plasma superconfinement generator for producing positive or negative ions in a gaseous medium |
| 07/22/1998 | CN1188070A Ozone generator |
| 07/21/1998 | CA2115127C Speaker system with an anion generator and television using the speaker system |
| 07/02/1998 | DE19654604A1 Cell activator using negative oxygen ions e.g. for ionising oxygen in living rooms |
| 06/18/1998 | WO1998026482A1 Device to produce active oxygen ions in the air for improved air quality |
| 06/18/1998 | DE19651402A1 Apparat zur physikalischen Aufbereitung von Luft, insbesondere von Atemluft An apparatus for the physical treatment of air, in particular of breathing air |
| 06/18/1998 | CA2281222A1 Device to produce active oxygen ions in the air for improved air quality |
| 06/16/1998 | US5768087 Method and apparatus for automatically cleaning ionizing electrodes |
| 06/16/1998 | US5766560 For generating ozone from oxygen-containing gas; flat dielectric plate, electrodes producing corona discharge |
| 06/02/1998 | US5759497 Ozone generating apparatus |
| 05/22/1998 | WO1998021791A1 Method and device for ion generation |
| 05/22/1998 | WO1998021144A1 Ozone generator |
| 05/22/1998 | CA2315872A1 Method and device for ion generation |
| 05/14/1998 | WO1998020588A1 Method and apparatus for automatically cleaning ionizing electrodes |
| 05/07/1998 | WO1998019017A1 Mist clearing method and equipment |
| 04/21/1998 | CA2092175C Plate-type ozonizer |
| 04/15/1998 | EP0835222A1 A method and device for producing ozone |
| 04/08/1998 | CN2277788Y 负离子保健治疗仪 Anion health treatment instrument |
| 04/02/1998 | WO1998013141A1 Ionizing structure for ambient air treatment |
| 02/25/1998 | EP0825695A2 Power processor circuit and method for corona discharge pollutant destruction apparatus |
| 02/25/1998 | CN1174431A Air cleaner |
| 02/25/1998 | CN1174313A Air cleaner |
| 02/25/1998 | CN1037491C Domestic skin treatment and beautifying instrument |
| 02/04/1998 | EP0821840A1 Device for transport of air and/or cleaning of air using a so-called ion wind |
| 02/04/1998 | CN2273909Y Energy saving dc or ac anion device for health-care |
| 02/04/1998 | CN1171983A Air cleaner |
| 01/28/1998 | CN1171643A Air Cleaner |
| 01/14/1998 | EP0818415A1 Ozone generating apparatus |
| 01/13/1998 | US5707429 Electrostatic treatment; room air dedusting, purification |
| 01/07/1998 | EP0815050A1 Process and device for generating gaseous oxygen anionic radicals |
| 12/31/1997 | WO1997050160A1 Ionization apparatus |
| 12/16/1997 | US5698164 Glassy ceramic coating on electric rod conductors made by applying surface treatment agent and thermally decomposing in air |
| 11/04/1997 | US5683556 Discharging and dust removing method and discharging and dust removing apparatus |
| 10/07/1997 | US5674333 Total containment welding of plastic tubes |
| 09/25/1997 | WO1997034643A1 Ozone sterilizer and generator |
| 09/16/1997 | US5667563 Air ionization system |
| 08/20/1997 | EP0789666A1 Process and device for generating ozone |
| 08/06/1997 | EP0787680A1 An ozone generator |
| 07/22/1997 | US5650203 Silicon ion emitter electrodes |
| 06/12/1997 | DE19614195C1 Pulsed voltage supply for electrostatic dust separator |
| 05/27/1997 | US5632852 Ion generator in connect/disconnect of plastic tubes |
| 05/13/1997 | US5628463 Vapor ionizing discharger apparatus |
| 05/07/1997 | EP0771483A1 Plasma superconfinement generator for producing positive or negative ions in a gaseous medium |
| 03/13/1997 | WO1997009268A1 Process and device for generating ozone |
| 03/12/1997 | EP0762810A1 Charge eliminating apparatus for a moving web |
| 02/25/1997 | US5606626 Speaker system with an anion generator and television using the speaker system |
| 02/11/1997 | US5601636 Wall mounted air cleaner assembly |
| 01/29/1997 | EP0755692A2 Device for ionising gases |
| 01/21/1997 | US5595643 Supplying electric current to form oxygen anions |
| 01/16/1997 | WO1997001507A1 A method and device for producing ozone |
| 01/16/1997 | CA2224987A1 A method and device for producing ozone |
| 01/15/1997 | CN2245281Y Negative ion producer |
| 01/14/1997 | CA2153929A1 Air ionization system |
| 01/01/1997 | CN1139304A Active lightening-protection method and equipment producing high-conductivity atmospheric layer |
| 12/24/1996 | CA2103890C Apparatus for generating ozone utilizing an oscillating plate electrode |
| 11/19/1996 | US5576923 Apparatus for generating anions in video appliances |
| 11/12/1996 | US5574619 Apparatus for generating anions in video appliances |
| 10/24/1996 | WO1996033539A1 Device for transport of air and/or cleaning of air using a so-called ion wind |
| 10/09/1996 | CN2237295Y Negative ion generator |