Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5430188 | Process for the preparation of 2-alkyl-6-methyl-N-(1'-methoxy-2'-propyl)-aniline and a process for the preparation of their chloracetanilides | Peter Raymond Flatt, Paul Radimerski | 1995-07-04 |
| 5116518 | Process for the purification of dimethyl terephthalate | Wilfried Bachmann, Horst Buttner, Edgar Wetzel | 1992-05-26 |
| 4683034 | Process for separating dimethyl isophthalate and dimethyl orthophthalate from their mixture with dimethyl terephthalate | Hartmut Last, Manfred Mayer, Siegbert Rittner, Edgar Wetzel | 1987-07-28 |
| 4322536 | Process for producing pyridinaldehydes | Dieter Reinehr | 1982-03-30 |
| 4237275 | Process for producing hydrazone derivatives of pyridinaldehydes | Dieter Reinehr | 1980-12-02 |
| 4220788 | Process for the preparation of 2-aryl-2H-benzotriazoles | Leopold Kung, Peter Waldvogel | 1980-09-02 |