Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10787341 | Elevator control system and elevator system having inspection control station | Peter Herkel, Helmut Lothar Schroeder-Brumloop, Pascal Rebillard, Igor Kuzmin | 2020-09-29 |
| 9914617 | Elevator power management to augment maximum power line power | Herbert Horbrugger, Dirk H. Tegtmeier | 2018-03-13 |
| 9376289 | Elevator control system with sleep monitor | Peter Herkel, Juergen Gewinner, Axel Pfeffer, Dirk H. Tegtmeier, Gianfranco Giannini | 2016-06-28 |
| 8970152 | Elevator motor power supply control | Daryl J. Marvin, Steven M. Millett | 2015-03-03 |
| 8827042 | Elevator regenerative drive including an air core inductor | Wolfgang Lutz Zemke, Marvin Dehmlow | 2014-09-09 |
| 7690483 | Elevator including elevator rescue system | Dirk H. Tegtmeier, Armando Servia, Ricardo Cano | 2010-04-06 |
| 7681693 | Method for performing an elevator rescue run | Dirk H. Tegtmeier, Herbert K. Horbruegger, Kristian Bernhard Wittjen | 2010-03-23 |
| 7662070 | Recumbent bicycle for disabled users | — | 2010-02-16 |
| 7350883 | Detecting elevator brake and other dragging by monitoring motor current | James L. Hubbard, Armando Servia-Reymundo | 2008-04-01 |
| 6634463 | Switch over from the mains supply to a frequency converter by a phase correction process for an escalator drive | Stefan Spannhake, Gunter Blechschmidt, Peter Walden, Robert Oesterle, Michael Bernhard Kocur | 2003-10-21 |
| 6519589 | System and method for generating domain names and for facilitating registration and transfer of the same | Ronald Fitzherbert | 2003-02-11 |
| 6298341 | System and method for generating domain names and for facilitating registration and transfer of the same | Ronald Fitzherbert | 2001-10-02 |
| 6211634 | Method and apparatus for initialization and operation of field-commutated motors and machines incorporating field-commutated motors | Marcus Heller, Christoph M. Ernecke | 2001-04-03 |
| 6161656 | Speed and direction indicator for elevator systems | Herbert Horbrugger, Helmut Schroder-Brumloop | 2000-12-19 |
| 5476158 | Rotor time constant adaptation for induction motor in vector controlled elevator drive | Karl-Heinz Glahe | 1995-12-19 |
| 5388052 | Method of operating an induction motor | — | 1995-02-07 |