Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9768666 | External cooling tube arrangement for a stator of an electric motor | Klaus Büttner, Norbert Wöhner | 2017-09-19 |
| 9515536 | Cooling system for an asynchronous rotor | Klaus Büttner | 2016-12-06 |
| 9287754 | Electrical machine having dual-circuit cooling | Klaus Büttner | 2016-03-15 |
| 9281728 | Electric machine having efficient internal cooling | Klaus Büttner, Michael Müller | 2016-03-08 |
| 9257883 | Electric machine with rotor interior ventilation | Klaus Büttner, Michael Müller | 2016-02-09 |
| 8963394 | Cage rotor with starting bar | Klaus Büttner, Michael Müller | 2015-02-24 |
| 4381897 | Installation for transporting fine-grained material | Carlos Arbeletche, Ingo Boelcke, Peter Poehlmann | 1983-05-03 |