|
| US4299785 | 20 jun 1980 | 10 nov 1981 | Coignet S.A. | Induced draft cooling tower with improved outer support structure |
| US4315873 | 27 dec 1978 | 16 feb 1982 | Hudson Products Corporation | Cooling equipment |
| US4400185 | 24 maj 1982 | 23 aug 1983 | | Evaporative cooler with improved air handling mechanism |
| US4436676 | 2 mar 1982 | 13 mar 1984 | Kraftwerk Union Aktiengesellschaft | Cooling plant |
| US4530804 | 22 jan 1981 | 23 jul 1985 | Baltimore Aircoil Company, Inc. | Forced draft cross flow, free-plenum evaporative heat exchanger |
| US5019300 | 25 jul 1990 | 28 maj 1991 | Carolina Power & Light Company
North Carolina Alternative Energy Corporation
North Carolina Department of Economic | Direct contact water-to-air heat exchanger and method |
| US5232636 | 31 jul 1991 | 3 aug 1993 | Baltimore Aircoil Company, Inc. | Cooling tower strainer tank and screen |
| US5328600 | 12 apr 1993 | 12 jul 1994 | Baltimore Aircoil Company, Inc. | Cooling tower strainer tank and screen |
| US6385987 | 23 feb 2001 | 14 maj 2002 | | Heat exchanger for cooling and for a pre-cooler for turbine intake air conditioning |
| US7137623 | 17 sep 2004 | 21 nov 2006 | SPX Cooling Technologies, Inc. | Heating tower apparatus and method with isolation of outlet and inlet air |
| US7243909 | 9 dec 2005 | 17 jul 2007 | | Collector sump cooling tower |
| US7765827 | 8 nov 2005 | 3 aug 2010 | Everest Acquisition Holdings, Inc. | Multi-stage hybrid evaporative cooling system |
