Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5825499 | Method for checking wafers having a lacquer layer for faults | — | 1998-10-20 |
| 5742395 | Method for checking semiconductor wafers and apparatuses for carrying out the method | Matthias Grieshop, Manfred Ben El Mekki, Kenneth Weisheit, Thomas Griebsch, Gerhard Ross | 1998-04-21 |
| 5644140 | Apparatus for checking semiconductor wafers with complementary light sources and two cameras | Manfred Ben El Mekki, Kenneth Weisheit, Thomas Griebsch, Gerhard Ross | 1997-07-01 |
| 4704026 | Copying method and arrangement for difficult-to-copy originals | Hans-Jurgen Rauh, Gunter Findeis, Bernhard Knor | 1987-11-03 |
| 4647187 | Photographic copier | Wolfgang Zahn, Gunter Findeis | 1987-03-03 |
| 4444489 | Apparatus for influencing the color of copying light in photographic copying machines or the like | Siegfried Bartel, Wolfgang Ermer, Erich Nagel | 1984-04-24 |
| 4390270 | Photographic copier | Gunter Findeis, Klaus Weber, Wolfgang Zahn | 1983-06-28 |
| 4364147 | Apparatus for removing particles of dust from the surfaces of flat objects | Heinz Rapp | 1982-12-21 |
| 4353646 | Apparatus for positioning originals in photographic copying machines | Siegfried Bartel, Erich Nagel, Franz Kramer | 1982-10-12 |
| 4240744 | Photographic copying machine with interchangeable format masks | Heinz Rapp, Dieter Wittenbrink | 1980-12-23 |
| 4218032 | Apparatus for convoluting webs onto rotary cores | Erich Nagel, Wolfgang Zahn, Heinz Kolbl, Horst Wildner, Ernst Ismann +2 more | 1980-08-19 |
| 4218133 | Photographic copying apparatus | — | 1980-08-19 |
| 4214689 | Automatic counteracting of transverse shift of a longitudinally transported strip | Siegfried Bartel, Heinz Rapp, Martin Muller | 1980-07-29 |
| 4194836 | Photographic copying machine with carrier structure _carrying format masks to and away from the copying station | Heinz Rapp, Siegfried Bartel | 1980-03-25 |