Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6234106 | Position indicator | Dieter Dohnal | 2001-05-22 |
| 6087607 | Position signalling device | Dieter Dohnal | 2000-07-11 |
| 5834717 | On-load tap changer of a step switch | Leonhard Pillmeier | 1998-11-10 |
| 5786552 | Switching arrangement for load change-over switches of step switches and for selector switches | Dieter Dohnal, Hans-Henning Lessmann-Mieske, Leonhard Pillmeier | 1998-07-28 |
| 5523674 | Step switch | Dieter Dohnal, Wolfgang Albrecht, Gunter Kloth, Rolf Lauterwald, Hans-Henning Lessmann-Mieske | 1996-06-04 |
| 5516992 | Transformer tap changing and step switch assembly | Dieter Dohnal | 1996-05-14 |
| 5337550 | Method and device for stopping a spool on an open-end spinning machine | Walter Mayer, Sebastian Brandl | 1994-08-16 |
| 5330115 | Method and apparatus for forming a reserve winding on a rotating empty tube | Walter Mayer, Sebastian Brandl | 1994-07-19 |
| 5266759 | Actuator for a step-transformer load switch | Dieter Dohnal | 1993-11-30 |
| 5107200 | Load switch for a step transformer | Dieter Dohnal | 1992-04-21 |