Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5413728 | Process for operating a compressor heat pump or a compressor refrigeration system in which ammonia is used as the refrigerant | Klaus Mall | 1995-05-09 |
| 5314982 | Process for the preparation of polyurea greases | Christian Rasp, Ralf Timmermann, Hermann Perrey, Bernhard Lehmann | 1994-05-24 |
| 4973414 | Polyethers, process for their preparation and lubricants containing these polyethers | Dittmar Nerger, Karl-Heinz Hentschel, Christian Rasp, Pramod Gupta | 1990-11-27 |
| 4770804 | Thickening systems for high water based functional fluids and the high water based functional fluids containing these thickening systems | Karl-Heinz Hentschel, Christian Rasp, Udo-Winfried Hendricks | 1988-09-13 |
| 4666618 | Preparation and use of sulphur-containing polyether-urethanes | Karl-Heinz Hentschel, Hansjurgen Botsch | 1987-05-19 |
| 4652386 | Lubricating oil preparations | Heinrich Alberts, Wolfgang Grape, Ottfried Schlak | 1987-03-24 |
| 4627929 | Stabilized lubricants based on polyethers | Hans-Josef Buysch, Gunther Boehmke | 1986-12-09 |
| 4490266 | Process for the preparation of liquids of low inflammability and high viscosity index and the use thereof | Karl-Heinz Hentschel, Bernhard Mussig, Rolf Dhein | 1984-12-25 |
| 4481123 | Polyethers, their preparation and their use as lubricants | Karl-Heinz Hentschel, Rolf Dhein, Hans-Joerg Winter, Herbert Vojacek | 1984-11-06 |