| 6814877 |
Method of producing at least one of chlorite, chlorine dioxide and chlorate by combining the reactions of ozonation and electrolytic chlorination |
— |
2004-11-09 |
| 6692645 |
Water reservoir filtration system and method |
— |
2004-02-17 |
| 6551518 |
Combined ozonation and electrolytic chlorination water purification method |
— |
2003-04-22 |
| 6517713 |
Apparatus for combined ozonation and electrolytic chlorination water purification system |
— |
2003-02-11 |
| 6277288 |
Combined ozonation and electrolytic chlorination water purification method |
— |
2001-08-21 |
| 6207064 |
Ozone contact chamber |
— |
2001-03-27 |
| 6149825 |
Tubular vortex separator |
— |
2000-11-21 |
| 5965016 |
Fluidized bed aquarium filtration system |
Bernard Suchowski, Robert H. Hyde, Joseph Pluchino |
1999-10-12 |
| 5866018 |
Vortex aquarium filter |
Robert H. Hyde, Eric Warren Curtis |
1999-02-02 |
| 5746921 |
Fluidized bed aquarium filtration method |
Robert H. Hyde |
1998-05-05 |
| 5668015 |
Method for measuring organics levels in an aquarium |
— |
1997-09-16 |
| 5632887 |
Fluidized bed aquarium filter |
Robert H. Hyde |
1997-05-27 |
| 5529751 |
Aquarium pH adjustment apparatus |
— |
1996-06-25 |