Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6665126 | Projection exposure lens with aspheric elements | David Shafer, Wilhelm Ulrich | 2003-12-16 |
| 6646718 | Projection objective having adjacently mounted aspheric lens surfaces | Karl-Heinz Schuster, David Shafer, Wilhelm Ulrich, Wolfgang Singer | 2003-11-11 |