| 10134942 |
Doping media for the local doping of silicon wafers |
Ingo Koehler, Sebastian Barth |
2018-11-20 |
| 9580610 |
Aluminium oxide pastes and process for the use thereof |
Ingo Koehler, Werner Stockum, Sebastian Barth |
2017-02-28 |
| 9379326 |
Selective etching of a matrix comprising silver nano wires |
Werner Stockum, Ingo Koehler, Christian Matuschek |
2016-06-28 |
| 9355867 |
Process for the production of solar cells having a local back surface field (LBSF) |
Werner Stockum, Ingo Koehler, Christian Matuschek |
2016-05-31 |
| 8723340 |
Process for the production of solar cells comprising a selective emitter |
Werner Stockum, Ingo Koehler |
2014-05-13 |
| 8647526 |
Two component etching |
Edward Plummer, Mark James, Ingo Koehler |
2014-02-11 |
| 8497215 |
Edge deletion of thin-layer solar modules by etching |
Ingo Koehler |
2013-07-30 |
| 7521408 |
Semiconductor cleaning solution |
Rita Vos, Paul Mertens, Bernd Kolbesen, Albrecht Fester |
2009-04-21 |
| 7160482 |
Composition comprising an oxidizing and complexing compound |
Rita Vos, Paul Mertens, Albrecht Fester, Bernd Kolbesen |
2007-01-09 |
