Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5753199 | Process for the production of calcium cyanamide from urea | Gunter Weber, Jurgen Graefe, Johann Wolferstetter | 1998-05-19 |
| 4976979 | Process for the decaffeination of tea | Erwin Schutz, Heinz-Rudiger Vollbrecht | 1990-12-11 |
| 4788286 | Process for obtaining solid cyanuric chloride | — | 1988-11-29 |
| 4591493 | Process for obtaining solid cyanuric chloride | Herbert Jekat | 1986-05-27 |