Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822372 | Processing for tanning leather | Frank Forster, Hermann Becker, Werner Lotz | 1989-04-18 |
| 4810252 | Process for tanning leather | Hermann Becker, Werner Lotz | 1989-03-07 |
| 4223141 | Preparation of methoxy-methyl melamines | Hans Honel, Walter Michel, Manfred Schon | 1980-09-16 |