Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5835252 | Device for generating annular pictures | Juergen Pudenz | 1998-11-10 |
| 4776666 | Projector for projecting fixed star | Gebhard Kuehn, Klaus-Dieter Scharf, Juergen Pudenz | 1988-10-11 |
| 4466717 | Optical system for lantern slide projection | Gebhard Kuhn, Klaus-Dieter Scharf | 1984-08-21 |
| 4403964 | Star projectors for planetaria | — | 1983-09-13 |
| 4214297 | Arrangement for spectral dispersion of a bundle of light | Gebhard Kuhn | 1980-07-22 |