Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9994491 | Composition of a magnesium sulphate-urea compound | Armin Dietrich, Guido BAUCKE, Stefan THENERT, Wolfgang Walczyk, Stefan Dressel +1 more | 2018-06-12 |
| 9663410 | Composition of a magnesium sulfate/urea compound | Wolfgang Walczyk | 2017-05-30 |
| 9487706 | Composition based on magnesium sulfate and diammonium hydrogenphosphate | Ralf Weber | 2016-11-08 |
| 6379414 | Process for producing pressed fertilizer granulates | Ludger Waldmann, Frank Wolf | 2002-04-30 |
| 5370235 | Method of separating polyethylene (PE) and polypropylene (PP) | Ingo Stahl, Axel Hollstein, Iring Geisler, Ulrich Neitzel | 1994-12-06 |
| 5366091 | Method of separating poly(ethylene terephthalate) (PET) and poly(vinyl chloride) (PVC) | Ingo Stahl, Axel Hollstein, Iring Geisler, Ulrich Neitzel | 1994-11-22 |
| 5358119 | Method of separating a mixture of plastics comprising at least three components using electrostatic techniques | Ingo Stahl, Axel Hollstein, Iring Geisler, Ulrich Neitzel | 1994-10-25 |