|
| US3936280 | 9 Nov 1973 | 3 Feb 1976 | | Treatment and apparatus for separation of combustion by-products from an internal combustion engine |
| US3976448 | 24 Mar 1975 | 24 Ago 1976 | Lin Eng Corporation | Electrostatic and sonic gas processing apparatus |
| US4000994 | 10 Feb 1975 | 4 Ene 1977 | | Electrostatic precipitation apparatus for vehicle engine exhaust |
| US4069665 | 24 Nov 1975 | 24 Ene 1978 | Scientific Enterprises, Inc. | Gas ionizing apparatus for improving the operation of an internal combustion engine |
| US4304096 | 11 May 1979 | 8 Dic 1981 | The Regents of the University of Minnesota | Method for reducing particulates discharged by combustion means |
| US4316360 | 22 Ago 1979 | 23 Feb 1982 | The Regents of the University of Minn. | Apparatus for recycling collected exhaust particles |
| US4338784 | 11 Dic 1980 | 13 Jul 1982 | The Regents of the University of Minn. | Method of recycling collected exhaust particles |
| US4345572 | 18 Dic 1980 | 24 Ago 1982 | | Engine exhaust gas reflux apparatus |
| US4355504 | 11 Dic 1980 | 26 Oct 1982 | The Regents of the University of Minnesota | Apparatus for reducing particles discharged by combustion means |
| US4376637 | 14 Oct 1980 | 15 Mar 1983 | California Institute of Technology | Apparatus and method for destructive removal of particles contained in flowing fluid |
| US4380900 | 26 May 1981 | 26 Abr 1983 | Robert Bosch GmbH | Apparatus for removing solid components from the exhaust gas of internal combustion engines, in particular soot components |
| US4597781 | 21 Nov 1984 | 1 Jul 1986 | | Compact air purifier unit |
| US4670026 | 18 Feb 1986 | 2 Jun 1987 | Desert Technology, Inc. | Method and apparatus for electrostatic extraction of droplets from gaseous medium |
| US4871515 | 22 Jun 1988 | 3 Oct 1989 | MAN Technologie GmbH | Electrostatic filter |
| US4877428 | 7 Dic 1988 | 31 Oct 1989 | | Ionic air cleaner for homes and motor vehicles |
| US4905470 | 19 Ago 1988 | 6 Mar 1990 | Man Technologie GmbH | Electrostatic filter for removing particles from diesel exhaust |
| US4945721 | 14 Abr 1988 | 7 Ago 1990 | Environmental Research International, Inc. | Electromagnetic converter for reduction of exhaust emissions |
| US4956152 | 10 May 1989 | 11 Sep 1990 | Electro Statics, Inc. | Emission control unit |
| US5003774 | 27 Oct 1989 | 2 Abr 1991 | Kerr-McGee Chemical Corporation | Apparatus for soot removal from exhaust gas |
| US5041145 | 15 May 1990 | 20 Ago 1991 | Niles Parts Co., Ltd. | Bridged stream corona generator |
| US5084078 | 28 Nov 1990 | 28 Ene 1992 | Niles Parts Co., Ltd. | Exhaust gas purifier unit |
| US5284556 | 1 May 1991 | 8 Feb 1994 | PlasMachines, Inc. | Exhaust treatment system and method |
| US5917138 | 5 Dic 1996 | 29 Jun 1999 | | Bottom feed--updraft gasification system |
| US5950424 | 7 Oct 1996 | 14 Sep 1999 | Kabushiki Kaisya O - Den | Diesel engine exhaust particle collection device |
| US6056808 | 1 Dic 1997 | 2 May 2000 | DKW International Inc. | Modular and low power ionizer |
| US6632267 | 20 Sep 2001 | 14 Oct 2003 | | Method and device for separating materials in the form of particles and/or drops from a gas flow |
| US7758675 | 13 Abr 2005 | 20 Jul 2010 | Isuzu Motors Limited | Gas treatment device |
| US7767005 | 22 Jun 2005 | 3 Ago 2010 | | Tunnel fan electrostatic filter |
| US8236094 | 27 Mar 2008 | 7 Ago 2012 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purifying device |
