Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805122 | Oxygen conserving device utilizing a radial multi-stage compressor for high-pressure mobile storage | Gerald Goertzen | 2004-10-19 |
| 6794836 | Electric motor drive controller with voltage control circuit operative in different modes | Thomas Strothmann | 2004-09-21 |