Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9607781 | Tap changer and vacuum interrupter for a tap changer of this kind | Wolfgang Albrecht, Christian Hammer, Werner Hartmann, Silvio Kosse, Andreas Lawall +3 more | 2017-03-28 |
| 9293273 | Tap changer with vacuum interrupters | Wolfgang Albrecht, Christian Hammer, Christoph Heynen, Rainer Frotscher, Christian Kotz +8 more | 2016-03-22 |
| 9123490 | Vacuum switch tube | Lydia Baron, Werner Hartmann, Ulf Schümann | 2015-09-01 |
| 8947188 | Tap changer and vacuum interrupter for such a tap changer | Christian Hammer, Wolfgang Albrecht, Christian Pircher, Sebastian Rehkopf, Andreas Sachsenhauser +7 more | 2015-02-03 |
| 8847097 | Vacuum interrupter | Ulf Schümann | 2014-09-30 |
| 7334319 | Method for opening the contact gap of a vacuum interrupter | Joerg Kusserow | 2008-02-26 |
| 7250584 | Contact element comprising rounded slot edges | Caspar Asmus, Klaus Oberndorfer | 2007-07-31 |
| 7041929 | Contact arrangement for a vacuum switch tube | Johannes-Gerhard Banghard, Klemens Fieberg, Michael Hahn, Werner Hartmann | 2006-05-09 |
| 6930270 | Connection area between housing parts of a vacuum interrupter, and a vacuum interrupter having a connection area of this type | Klemens Fieberg, Klaus Gessner, Jürgen Jirasek, Lutz Kellmann, Klaus Oberndorfer +2 more | 2005-08-16 |
| 6891122 | Vacuum switch tubes | — | 2005-05-10 |
| 6864456 | Vacuum interrupter chamber with ring-shaped insulator | Johannes-Gerh Banghard, Klemens Fieberg, Michael Hahn, Werner Hartmann, Harald Kurzmann +4 more | 2005-03-08 |
| 6720515 | Vacuum interrupter with two contact systems | Norbert Steinemer | 2004-04-13 |
| 6674039 | Contact arrangement for a vacuum interrupter | Johannes-Gerh Banghard, Klemens Fieberg, Michael Hahn, Werner Hartmann | 2004-01-06 |
| 6657149 | Vacuum interrupter with a vapor shield | Klemens Fieberg, Klaus Gessner, Klaus Oberndoerfer | 2003-12-02 |
| 6417472 | Vacuum switching chamber having an annular insulator | Jorg Kusserow, Klemens Fieberg | 2002-07-09 |
| 6046422 | Vacuum interrupter with a vapor shield associated with the insulator | Klaus Gessner | 2000-04-04 |
| 6034472 | Vacuum tube having a getter apparatus | Klaus Oberndoerfer, Klaus Gessner | 2000-03-07 |
| 5661281 | Vacuum-type interrupter having an annular insulator | Klemens Fieberg, Jorg Kusserow, Klaus Oberndorfer | 1997-08-26 |
| 5313030 | Vacuum switch | Joerg Kusserow | 1994-05-17 |
| 5064976 | Contact configuration for a vacuum interrupter | Guenter Bialkowski, Dieter Gerlach | 1991-11-12 |
| 4795866 | Vacuum tube switch which uses low temperature solder | Ernst-Ludwig Hoene, Klaus Gessner | 1989-01-03 |
| 4727228 | Contact arrangement for vacuum switches | Ernst-Ludwig Hoene | 1988-02-23 |
| 4620074 | Contact arrangement for vacuum switches | Bernt Paul | 1986-10-28 |