Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9583652 | Method for the wet-chemical etching back of a solar cell emitter | Agata Lachowicz, Knut Vaas | 2017-02-28 |
| 9558952 | Alkaline pickling process | Agata Lachowicz, Heinrich Blanke | 2017-01-31 |
| 8889536 | Method for forming a dopant profile | Gabriele Blendin, Joerg Horzel, Agata Lachowicz | 2014-11-18 |
| 8563440 | Method for chemically treating a substrate | Andreas Teppe, Dieter Franke, Ingo Schwirtlich, Knut Vaas, Wilfried Schmidt | 2013-10-22 |
| 8148191 | Combined etching and doping media | Sylke Klein, Armin Kubelbeck, Werner Stockum, Wilfried Schmidt | 2012-04-03 |
| 7629257 | Combined etching and doping substances | Sylke Klein, Armin Kubelbeck, Werner Stockum, Wilfried Schmidt | 2009-12-08 |
| 6306224 | Process and device for treatment of sheet objects in a liquid bath | Gernot Wandel, Fritz Heyer | 2001-10-23 |
| 4915978 | Method and device for forming a layer by plasma-chemical process | Hilmar Von Campe, Dietmar Liedtke | 1990-04-10 |
| 4891325 | Method for re-using silicon base material of a metal insulator semiconductor (mis) inversion-layer solar cell | Rudolf Hezel, Winfried Hoffmann | 1990-01-02 |
| 4812416 | Method for executing a reproducible glow discharge | Gerd Hewig, Jorg Worner | 1989-03-14 |