Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876600 | Method and device for representing a composite image on a screen of a screen device | Ludwig Pietzsch, Horst Winter, Hubert Völlinger | 1989-10-24 |
| 4692943 | Method of and system for opto-electronic inspection of a two-dimensional pattern on an object | Ludwig Pietzsch, Knud Overlach, Walter Breunig | 1987-09-08 |