Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5047095 | Process for simultaneous smoothing, cleaning, and surface protection of metal objects | Juergen Geke, Herbert Wievelhoff | 1991-09-10 |
| 4437898 | Method and agent for passivating iron and steel surfaces | Jurgen Geke, Hans-Gunther Germscheid | 1984-03-20 |
| 4284434 | Process for spray cleaning of metal surfaces | Herbert Lingmann, Rudolf Peifer | 1981-08-18 |