Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4953188 | Method and device for producing phase-contrast images | Gunter Schmahl, Dietbert Rudolph | 1990-08-28 |
| 4720191 | Method and apparatus for light span microscopic dark-field display of objects | Peter Seidel | 1988-01-19 |