Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |