Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8015659 | Air flow passage for a vacuum cleaner | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2011-09-13 |
| 7455708 | Air flow passage for a vacuum cleaner | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2008-11-25 |
| 7374598 | Methods and apparatus for spray forming, atomization and heat transfer | Robin M. Forbes Jones, Richard L. Kennedy, Helmut Gerhard Conrad, Wayne Ernest Conrad, Richard Stanley Phillips +1 more | 2008-05-20 |
| 6902596 | Air flow passage for a vacuum cleaner | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2005-06-07 |
| 6772961 | Methods and apparatus for spray forming, atomization and heat transfer | Robin M. Forbes Jones, Richard L. Kennedy, Helmut Gerhard Conrad, Wayne Ernest Conrad, Richard Stanley Phillips +1 more | 2004-08-10 |
| 6736873 | Air flow passage for a vacuum cleaner | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2004-05-18 |
| 6599340 | Air flow passage for a cyclonic separator and vacuum cleaner having same | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2003-07-29 |
| 6596046 | Cyclone separator having a variable longitudinal profile | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2003-07-22 |
| 6455000 | Method and apparatus for measuring the concentration of a gas | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2002-09-24 |
| 6419719 | Cyclonic vacuum cleaner | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2002-07-16 |
| 6333017 | Method for the production of ozone | Wayne Ernest Conrad | 2001-12-25 |
| 6328527 | Prandtl layer turbine | Wayne Ernest Conrad, Helmut Gerhard Conrad, Dave Petersen | 2001-12-11 |
| 6312594 | Insert for a cyclone separator | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2001-11-06 |
| 6312588 | Water purifier | Wayne Ernest Conrad, Helmut Gerhard Conrad, Richard Stanley Phillips | 2001-11-06 |
| 6277278 | Cyclone separator having a variable longitudinal profile | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2001-08-21 |
| 6261379 | Floating agitator housing for a vacuum cleaner head | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2001-07-17 |
| 6261052 | Prandtl layer turbine | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2001-07-17 |
| 6238177 | Prandtl layer turbine | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2001-05-29 |
| 6224325 | Prandtl layer turbine | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2001-05-01 |
| 6217635 | Method and apparatus for concentrating a gas using a single stage adsorption chamber | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2001-04-17 |
| 6190622 | Ozone generator | Wayne Ernest Conrad, Helmut Gerhard Conrad, Richard Stanley Philips | 2001-02-20 |
| 6183641 | Prandtl layer turbine | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2001-02-06 |
| 6174127 | Prandtl layer turbine | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2001-01-16 |
| 6168716 | Cyclone separator having a variable transverse profile | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2001-01-02 |
| 6162283 | Method and apparatus for concentrating a gas using a single stage adsorption zone | Wayne Ernest Conrad, Helmut Gerhard Conrad | 2000-12-19 |