Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11152760 | Light emitter device based on a photonic crystal with pillar- or wall-shaped semiconductor elements, and methods for the operation and production thereof | Lutz Geelhaar, Ivano Giuntoni | 2021-10-19 |
| 9184235 | Production of a semiconductor device having at least one column-shaped or wall-shaped semiconductor element | Lutz Geelhaar, Vladimir Kaganer, Martin Woelz | 2015-11-10 |
| 8964018 | Video display systems | Fred Charles Thomas, III, John Michael Main, Derek Hanson | 2015-02-24 |
| 8011483 | Ventilation device for a combined spring accumulator and operating brake cylinder | Wilfried Matthias, Andreas Richter | 2011-09-06 |
| D614550 | Brake cylinder | — | 2010-04-27 |
| 7451690 | Spring-actuated air-brake cylinder for vehicle brake systems | Frank Schrader, Jurgen Ewald, Wilfried Matthias, Andreas Richter | 2008-11-18 |