Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5002725 | Nuclear reactor fuel assembly | Hans Lettau, Hans-Joachim Lippert, Roland Rink | 1991-03-26 |
| 4781885 | Nuclear reactor fuel assembly | Rolf Holzer, Hans Lettau | 1988-11-01 |