Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7541287 | Method for machining a semiconductor wafer on both sides in a carrier, carrier, and a semiconductor wafer produced by the method | Ruediger Schmolke, Thomas Buschhardt, Gerhard Heier | 2009-06-02 |
| 6899762 | Epitaxially coated semiconductor wafer and process for producing it | Wolfgang Siebert, Klaus Messmann, Gerhard Heier, Thomas Altmann, Martin Fürfanger | 2005-05-31 |
| 6861360 | Double-sided polishing process for producing a multiplicity of silicon semiconductor wafers | Thomas Altmann, Anton Huber, Alexander Heilmaier | 2005-03-01 |
| 6793837 | Process for material-removing machining of both sides of semiconductor wafers | Thomas Altmann, Gerhard Heier, Wolfgang Winkler, Gunther Kann | 2004-09-21 |
| 6645862 | Double-side polishing process with reduced scratch rate and device for carrying out the process | Johann Glas, Thomas Altmann, Gerhard Heier | 2003-11-11 |
| 6583050 | Semiconductor wafer with improved flatness, and process for producing the semiconductor wafer | Thomas Altmann, Ernst Feuchtinger, Willibald Bernwinkler, Wolfgang Winkler, Gerhard Heier | 2003-06-24 |
| 6566267 | Inexpensive process for producing a multiplicity of semiconductor wafers | — | 2003-05-20 |
| 6530826 | Process for the surface polishing of silicon wafers | Thomas Buschhardt, Heinrich Hennhofer, Bruno Lichtenegger | 2003-03-11 |
| 6514424 | Process for the double-side polishing of semiconductor wafers and carrier for carrying out the process | Gerhard Heier, Wolfgang Winkler, Thomas Altmann | 2003-02-04 |
| 6458688 | Semiconductor wafer with improved flatness, and process for producing the semiconductor wafer | Thomas Altmann, Ernst Feuchtinger, Willibald Bernwinkler, Wolfgang Winkler, Gerhard Heier | 2002-10-01 |
| 5527755 | Catalyst for the catalytic afterburning of exhaust gases containing carbon monoxide and/or oxidizable organic compounds | Margit Hammer | 1996-06-18 |
| 5072069 | Cycloolefinic complexes of platinum, processes for preparing the same and their use as a catalyst | Ludwig Maier, Hans-Jurgen Eberle | 1991-12-10 |
| 5009934 | Process for preparing poly-(imidesiloxanes) | Ludwig Maier, Franz-Heinrich Kreuzer | 1991-04-23 |