Issued Patents 2002
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6491811 | Sensor for a water treatment apparatus | Terry Bohrson | 2002-12-10 |
| 6491879 | Ozone generator | — | 2002-12-10 |
| 6491815 | Construction of a water treatment reservoir for a domestic water treatment appliance | Joe Don Garrison, Shawn Nielson, Richard Zulik, Terry Bohrson, John Stouth +1 more | 2002-12-10 |
| 6488819 | Process and apparatus for chemical conversion | Richard Stanley Phillips, Andrew Richard Henry Phillips, Helmut Gerhard Conrad | 2002-12-03 |
| 6482252 | Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use therein | Helmut Gerhard Conrad | 2002-11-19 |
| 6475352 | Method and apparatus for monitoring an ozone generator in a household water purifier | — | 2002-11-05 |
| 6457205 | Vacuum cleaner having a plurality of power modes | — | 2002-10-01 |
| 6455000 | Method and apparatus for measuring the concentration of a gas | Helmut Gerhard Conrad, Ted Szylowiec | 2002-09-24 |
| 6447733 | Fluid contact chamber | Helmut Gerhard Conrad, Richard Stanley Phillips, Andrew Richard Henry Phillips | 2002-09-10 |
| 6440197 | Apparatus and method separating particles from a cyclonic fluid flow including an apertured particle separation member within a cyclonic flow region | Dave Petersen | 2002-08-27 |
| 6439831 | Method and apparatus for improving efficiency and/or altering acoustic signature of surface and submerged vessels | — | 2002-08-27 |
| 6419719 | Cyclonic vacuum cleaner | Helmut Gerhard Conrad, Ted Szylowiec | 2002-07-16 |
| 6391191 | Domestic water treatment appliance | — | 2002-05-21 |
| 6391095 | Air flow passage for a cyclonic separator and vacuum cleaner having same | Helmut Gerhard Conrad, Ted Szyluwiec | 2002-05-21 |
| 6383266 | Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use therein | Helmut Gerhard Conrad | 2002-05-07 |
| 6361686 | Construction of a water treatment reservoir for a domestic water treatment appliance | — | 2002-03-26 |
| 6345666 | Sublouvred fins and a heat engine and a heat exchanger having same | — | 2002-02-12 |
| 6344064 | Method and apparatus of particle transfer in multi-stage particle separators | — | 2002-02-05 |
| 6336326 | Apparatus for cooling a heat engine | — | 2002-01-08 |
| 6334234 | Cleaner head for a vacuum cleaner | Helmut Gerhard Conrad | 2002-01-01 |