Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE38561 | Field emission cathode | Till Keesmann | 2004-08-03 |
| RE38223 | Field emission cathode having an electrically conducting material shaped of a narrow rod or knife edge | Till Keesmann | 2003-08-19 |
| 5773921 | Field emission cathode having an electrically conducting material shaped of a narrow rod or knife edge | Till Keesmann | 1998-06-30 |
| 5644283 | Variable high-current resistor, especially for use as protective element in power switching applications & circuit making use of high-current resistor | Jorg Kieser, Wilfried Jaehner, Fritz Pohl, Reinhard Steger, Gert Vogel | 1997-07-01 |
| 5244428 | Method for manufacturing a stripline laser | Wolfgang Welsch, Hans Krueger, Norbert Wenzel, Wilfried Haas | 1993-09-14 |
| 5224117 | Gas lasers, in particular CO.sub.2 lasers | Wolfgang Kruger | 1993-06-29 |