Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8380374 | Method for navigating an undersea vehicle | Armin Schmiegel, Robert Engel | 2013-02-19 |
| 6556945 | Measurement of grooves and long waves on rails with a longitudinal streak of light | Hubert Burggraf, Rolf Kettenburg, Andreas Krupp, Dirk Maiwald | 2003-04-29 |
| 5155371 | Apparatus for detecting deformations in pressed members | Hubert Burggraf, Rene Krupka | 1992-10-13 |