Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11124688 | Composition comprising an alkoxylated amine compound and a carboxylic acid compound, use thereof in water in oil emulsions and process using the composition as or as part of a drilling fluid | Heinz Napierala | 2021-09-21 |
| 9909049 | Composition comprising an alkoxylated amine compound and a carboxylic acid compound, use thereof in water in oil emulsions and process using the composition as or as part of a drilling fluid | Heinz Napierala | 2018-03-06 |
| 5674559 | Process for the preparation of a polymer matrix which becomes cloudy as a function of temperature | Heinz Riemer, Werner Friedrich, Thomas Pollok, Petra Grünberg | 1997-10-07 |