Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6880807 | Flap valve | Michael Runft, Ralph Krause | 2005-04-19 |
| 6843467 | Flap valve | — | 2005-01-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6880807 | Flap valve | Michael Runft, Ralph Krause | 2005-04-19 |
| 6843467 | Flap valve | — | 2005-01-18 |