Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11661318 | Control switch for operating a hoist or crane | Frederick Woidneck, Wolfgang Krebs, Peter Kortmann | 2023-05-30 |
| 11208301 | Control switch, control system and method for operating a crane | Wolfgang Krebs, Thomas Lindenau, Frederick Woidneck, Marco Woldt, Holger Freitag +1 more | 2021-12-28 |
| D875690 | Control switch | Wolfgang Krebs, Thomas Lindenau, Frederick Woidneck, Marco Woldt, Holger Freitag +1 more | 2020-02-18 |
| 10202264 | Cable winch | Oliver Moll, Holger Freitag | 2019-02-12 |
| 9776839 | Control station for operating a machine, in particular a wireless, portable, and manually operated remote control for a crane | Wolfgang Krebs, Stefan Elspass | 2017-10-03 |
| 9643322 | Control method for a balancing lifting gear and balancing lifting gear | Holger Freitag, Giorgio Maccioni | 2017-05-09 |
| 9385523 | Circuit arrangement having an emergency stop switch of a hoist | Holger Freitag, Giorgio Maccioni | 2016-07-05 |
| 8575503 | Operating device for manually actuating lifting devices | Wolfgang Krebs, Thomas Bönker, Klaus-Dieter Oemus, Stefan Elspass, Anton Munzebrock +1 more | 2013-11-05 |
| 7504602 | Suspended control device | Michael Rohr, Udo Gersemsky, Wolfgang Krebs, Anton Munzebrock, Rudiger Ostholt +5 more | 2009-03-17 |
| 7422542 | Method of monitoring a chain pulley block and chain pulley block apparatus | Holger Freitag, Oliver Moll, Erik Appel, Ralf Eising, Udo Gersemsky +2 more | 2008-09-09 |
| 7126307 | Interface circuit for actuating an electrical device and circuit arrangement for actuating an electric motor therewith | Holger Freitag, Anton Munzebrock, Burkhard Hasenack, Erik Appel | 2006-10-24 |
| 7119295 | Suspended control device | Michael Rohr, Anton Munzebrock, Wolfgang Krebs, Rudiger Ostholt | 2006-10-10 |
| 7068009 | Drive arrangement, especially for a lifting mechanism and/or a traveling drive | Holger Freitag, Anton Munzebrock, Burkhard Hasenack, Erik Appel | 2006-06-27 |
| 7026780 | Method for stabilizing the movement of an articulated chain of a chain block, especially to prevent the formation of a resonance oscillation of the chain, and a chain block apparatus | Eberhard Schroder | 2006-04-11 |
| 6972385 | Operating device for manual actuation of hoisting equipment | Wolfgang Krebs, Holger Freitag, Anton Munzebrock, Burkhard Hasenack, Erik Appel +1 more | 2005-12-06 |
| 6241215 | Portable winch | Udo Gersemsky, Uwe Lichtenvort, Heinz Flaig, Jurgen Heun, Ralf Eising | 2001-06-05 |
| 6072296 | Asynchronous motor for a drive mechanism, such as hoists or running gears, with controllable rotational speed and rotational direction | Eckerhardt Grieb, Wolfgang Krebs, Anton Muller, Gerhard Weber | 2000-06-06 |