Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5344995 | Preparation of cyclic acetals of 3-formyl-2-butenyltriphenylphosphonium chloride | Wolfgang Krause, Walter Dobler, Hagen Jaedicke | 1994-09-06 |
| 5338888 | Preparation of E,Z-butenedial bis(dialkyl acetals) | Wolfgang Krause | 1994-08-16 |
| 5300658 | 2,5-bis(1,1-dialkoxy-2-propyl)-2,5-dihydrofurans, the preparation thereof and the use thereof for the preparation of carotenoids | Juergen Frank, Udo Rheude, Bernhard Schulz, Eckhard Hickmann | 1994-04-05 |
| 5294731 | Preparation of .beta.-hydroxycarboxylates | Wolfgang Siegel | 1994-03-15 |