Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670160 | Preservatives and their use | Heinz Eggensperger, Karl-Heinz Diehl | 1997-09-23 |
| 5591442 | Skin antiseptic and hand disinfectant | Karl-Heinz Diehl, Heinz Eggensperger, Peter Goroncy-Bermes, Susanne Toefke | 1997-01-07 |