|
| US4059522 | 12 Dic 1975 | 22 Nov 1977 | Iodinamics Corporation | Apparatus for purifying water |
| US4067808 | 15 Mar 1976 | 10 Ene 1978 | | Chlorinator for a swimming pool |
| US4152262 | 13 Feb 1978 | 1 May 1979 | | Filtration and purification apparatus |
| US4179047 | 27 Mar 1978 | 18 Dic 1979 | | Chemical metering apparatus |
| US4188295 | 15 Ago 1977 | 12 Feb 1980 | Mid-Florida Pools and Repair, Inc. | Apparatus for chlorinating and filtering water for swimming pools during filling operation |
| US4336225 | 24 Abr 1981 | 22 Jun 1982 | | Water decontamination apparatus |
| US4419233 | 18 Nov 1981 | 6 Dic 1983 | | Chlorinator for a swimming pool |
| US4572235 | 10 Ago 1983 | 25 Feb 1986 | Gardena Kress & Kastner GmbH | Mixing apparatus |
| US4584106 | 13 Ago 1984 | 22 Abr 1986 | | Chlorinator and method |
| US4867196 | 31 Ago 1988 | 19 Sep 1989 | Olin Corporation | Pool chemical dispenser |
| US4881568 | 6 Jul 1988 | 21 Nov 1989 | | Irrigation chemical dispenser |
| US4907618 | 21 Feb 1989 | 13 Mar 1990 | | Dispenser for irrigation chemicals |
| US5089127 | 19 Oct 1990 | 18 Feb 1992 | PPG Industries, Inc. | Chemical feed apparatus |
| US5133381 | 29 Oct 1990 | 28 Jul 1992 | Olin Corporation | Dual range periodic chemical dispenser for swimming pools |
| US5251656 | 19 Feb 1993 | 12 Oct 1993 | | Multiple chemical feeder for swimming pools |
| US5279748 | 28 Ago 1992 | 18 Ene 1994 | | Pool filter with electrolytic action |
| US5320748 | 2 Sep 1993 | 14 Jun 1994 | | Acid dispensing system for a swimming pool |
| US5384102 | 28 Jul 1993 | 24 Ene 1995 | PPG Industries, Inc. | Chemical feeder |
| US5460446 | 22 Sep 1993 | 24 Oct 1995 | Hospal Industrie | Device and method for preparing solution for medical use |
| US5637230 | 12 Oct 1994 | 10 Jun 1997 | City of Chandler | Water treatment method and apparatus for adding calcium hypochlorite to potable water |
| US5727877 | 6 Jun 1995 | 17 Mar 1998 | Hospal Industrie | Method for preparing solutions for medical use |
| US5810043 | 14 Abr 1997 | 22 Sep 1998 | Magi-Eau Inc. | Automatic chlorinator |
| US5885446 | 10 Abr 1997 | 23 Mar 1999 | | Wastewater treatment system for loading tablets into wastewater conduit |
| US5960808 | 18 Jun 1997 | 5 Oct 1999 | PPG Industries Ohio, Inc. | Method of controlling the amount of sanitizing agent in an aqueous medium |
| US6066252 | 1 Sep 1998 | 23 May 2000 | | Alarm mechanism for chlorinator in aerobic waste treatment system |
| US6123839 | 6 Abr 1998 | 26 Sep 2000 | | Automatic fluid dispensing system |
| US6183630 | 19 Jul 1999 | 6 Feb 2001 | | Chlorinator for aerobic waste treatment systems |
| US6221321 | 12 Nov 1998 | 24 Abr 2001 | H-Tech, Inc. | Chemical feeder |
| US6294086 | 18 Feb 2000 | 25 Sep 2001 | | Chlorinator for aerobic waste treatment systems |
| US6298871 | 15 Dic 2000 | 9 Oct 2001 | PPG Industries Ohio, inc. | Chemical feeder |
| US6372126 | 4 Ago 2000 | 16 Abr 2002 | | Chlorinator for aerobic waste treatment systems |
| US6544487 | 25 Nov 1998 | 8 Abr 2003 | PPG Industries Ohio, Inc. | Chemical feeder |
| US6962660 | 25 Sep 2002 | 8 Nov 2005 | Master Spas, Inc. | Fluid filter system with secondary flow path for augmented filtration |
| US7081232 | 15 Mar 2002 | 25 Jul 2006 | PPG Industries, Ohio, Inc. | Chemical feeder |
| US7147770 | 25 Mar 2004 | 12 Dic 2006 | King Technology, Inc. | Activity enhanced dispensers |
| US7883622 | 2 Oct 2007 | 8 Feb 2011 | | Water treatment methods and systems using combinations of ozone and chlorine generators |
| US8007664 | 5 Sep 2008 | 30 Ago 2011 | Chemtura Corporation
Slingshot Product Development Group | Floating dispenser for dispensing a solid dissolvable chemical into ambient water |
| US8075784 | 8 Feb 2011 | 13 Dic 2011 | | Water treatment methods and systems using combinations of ozone and chlorine generators |
| USRE33861 | 26 Abr 1990 | 31 Mar 1992 | Olin Corporation | Pool chemical dispenser |
