Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6280164 | Method and apparatus for temperature stabilization in gear pumps | Michael Heinen | 2001-08-28 |
| 5253988 | Gear pump | Alfred K. Hunziker, Fritz Haupt, Eduard Mischler | 1993-10-19 |