Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888412 | Tanning assistant | Klaus Ebel, Rolf Fikentscher, Dietrich Lach, Rolf Streicher, Ortwin Schaffer | 1989-12-19 |
| 4886882 | Hydroxyoxaalkylmelamines | Klaus Ebel | 1989-12-12 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888412 | Tanning assistant | Klaus Ebel, Rolf Fikentscher, Dietrich Lach, Rolf Streicher, Ortwin Schaffer | 1989-12-19 |
| 4886882 | Hydroxyoxaalkylmelamines | Klaus Ebel | 1989-12-12 |