Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5116518 | Process for the purification of dimethyl terephthalate | Wilfried Bachmann, Rolf Bader, Horst Buttner | 1992-05-26 |
| 4683034 | Process for separating dimethyl isophthalate and dimethyl orthophthalate from their mixture with dimethyl terephthalate | Rolf Bader, Hartmut Last, Manfred Mayer, Siegbert Rittner | 1987-07-28 |