Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6624327 | Process for preparing betaines | Reinhard Broucek, Axel Carstens, Ludwig Eisenhuth | 2003-09-23 |
| 6222075 | Process for the production of N, N, N', N',-tetra-(2-hydroxyethyl)ethylene diamine | Klaus Ihrig, Manfred Bergfeld | 2001-04-24 |