|
| US3954069 | 10 Mar 1975 | 4 May 1976 | Myrens Verksted A/S | Process and apparatus for the incineration of aqueous sewage sludge |
| US3960687 | 29 Oct 1973 | 1 Jun 1976 | U.S. Filter Corporation | Electrostatically enhanced removal of sulfur dioxide from gaseous carriers |
| US4249919 | 26 Dec 1978 | 10 Feb 1981 | | Matrix type electrostatic precipitator |
| US4557912 | 14 Nov 1984 | 10 Dec 1985 | | Air pollution reduction |
| US5246554 | 18 Mar 1991 | 21 Sep 1993 | | Process for selected gas oxide removal by radiofrequency catalysts |
| US5256265 | 12 Nov 1992 | 26 Oct 1993 | | Process for oxide reactions by radiofrequency-char catalysis |
| US5269892 | 9 Jun 1992 | 14 Dec 1993 | | Process and reactor for char-gas oxide reactions by radiofrequency catalysis |
| US5286281 | 21 Jan 1993 | 15 Feb 1994 | | Solids-gas separation apparatus and method |
| US5362451 | 11 Aug 1993 | 8 Nov 1994 | | Process and reactor for char-gas oxide reactions by radiofrequency catalysis |
| US5578112 | 1 Jun 1995 | 26 Nov 1996 | 999520 Ontario Limited | Modular and low power ionizer |
| US5616156 | 7 Apr 1995 | 1 Apr 1997 | | Device for the cleansing of the flue gases from waste incineration installations |
| US6056808 | 1 Dec 1997 | 2 May 2000 | DKW International Inc. | Modular and low power ionizer |
| US6287368 | 22 Jul 1997 | 11 Sep 2001 | Oy Airtunnel Ltd. | Apparatus for the purification of air flue gases, or equivalent |
| US6918755 | 20 Jul 2004 | 19 Jul 2005 | Arvin Technologies, Inc. | Fuel-fired burner with skewed electrode arrangement |
| US7999205 | 6 Mar 2006 | 16 Aug 2011 | Taiheiyo Cement Corporation | Method of separating foreign particles |
| US8202336 | 23 Nov 2011 | 19 Jun 2012 | Tri-Flo International, Inc. | System for separation and containment of solids, liquids, and gases |
| US8236092 | 27 Jun 2011 | 7 Aug 2012 | | Pressure gradient gas scrubber apparatus and method |
