Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6190033 | High gas dispersion efficiency glass coated impeller | Philip E. McGrath, Matthias Heinzmann | 2001-02-20 |
| 6082890 | High axial flow glass coated impeller | Matthias Heinzmann, Philip E. McGrath | 2000-07-04 |