Issued Patents All Time
Showing 126–128 of 128 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4418217 | Mixed formals of polyglycol ethers | Margarete Grunert, Jochen Heidrich, Holger Tesmann | 1983-11-29 |
| 4370203 | Cooling device for coke dry cooling | Wilhelm Jakobi | 1983-01-25 |
| 4364777 | Prevention of foam in alkaline cleansing bath by the use of mixed formals of polyglycol ethers | Margarete Grunert, Holger Tesmann | 1982-12-21 |