Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5231228 | Process for the preparation of saturated primary fatty amines by hydrogenation of the corresponding unsaturated primary fatty amines | Anton Fruth, Julius Strauss | 1993-07-27 |
| 5175370 | Process for the preparation of saturated primary fatty amines by hydrogenation of unsaturated fatty acid nitriles | Anton Fruth, Julius Strauss | 1992-12-29 |
| 4948535 | Process for the sulfation of partial esters of aliphatic polyhydric alcohols | Klaus Dullinger | 1990-08-14 |
| 4853430 | Method of increasing viscosity with fatty acid-modified polyesters and highly viscous compositions obtained thereby | Alwin Reng, Werner Skrypzak, Jochen M. Quack | 1989-08-01 |
| 4801730 | Process for the preparation of fatty acid nitriles and glycerol from glycerides | Kurt F. Fischer | 1989-01-31 |
| 4668439 | Process for the preparation of fatty acid esters of short-chain alcohols | Siegfried Billenstein, Bruno Kukla | 1987-05-26 |
| 4600539 | O/W Emulsifiers for cosmetic purposes | Udo Hoppe, Jochen M. Quack, Alwin Reng, Klaus-Peter Wittern | 1986-07-15 |
| 4562007 | Process for preparing carboxylic acid esters of hexitols | — | 1985-12-31 |
| 4551561 | Process for the preparation of polyglycerols | — | 1985-11-05 |
| 4521595 | Process for the purification of esters | Engelbert Krempl | 1985-06-04 |
| 4399245 | Sizing agent for synthetic fibers | Rolf Kleber | 1983-08-16 |
| 4234509 | Process for the manufacture of fatty acid nitriles and glycerol from glycerides, especially from natural fats and oils | Siegfried Billenstein, Bruno Kukla | 1980-11-18 |