Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9779931 | Method of manufacturing semiconductor wafers and method of manufacturing a semiconductor device | Helmut Oefner, Hans-Joachim Schulze | 2017-10-03 |
| 9536838 | Single crystal ingot, semiconductor wafer and method of manufacturing semiconductor wafers | Helmut Oefner, Hans-Joachim Schulze | 2017-01-03 |