Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4556315 | Process and apparatus for the emission-spectroscopical testing of metallic samples | — | 1985-12-03 |
| 4544270 | Apparatus for the spectrographic analysis of workpieces formed from iron and steel alloys | Ulrich Grisar, Egon Koerfer | 1985-10-01 |
| 4340303 | Arrangement for the spectral analysis of substances | Ulrich Grisar | 1982-07-20 |