Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4639326 | Process for the preparation of a powder detergent composition of high bulk density | Klaus Czempik | 1987-01-27 |
| 4549978 | Process for manufacture of detergent powder | Elfed H. Evans, Klaus Hirte | 1985-10-29 |