Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6653567 | Indicating instrument | Thomas Ritter, Manfred Zeiss | 2003-11-25 |
| 6476320 | Indicating instrument | Thomas Ritter, Manfred Zeiss | 2002-11-05 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6653567 | Indicating instrument | Thomas Ritter, Manfred Zeiss | 2003-11-25 |
| 6476320 | Indicating instrument | Thomas Ritter, Manfred Zeiss | 2002-11-05 |