Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12395030 | Method and device for introducing insulated winding packets into stator or rotor grooves, and stator or rotor comprising insulated winding packets | — | 2025-08-19 |
| 11843290 | Coil former, winding device and method for the operation thereof to produce coil windings intended for insertion in a stator | — | 2023-12-12 |
| 11539274 | Method and device for producing rotors and stators including the production of connection wires | — | 2022-12-27 |
| 11522422 | Device for producing rotors or stators of electric machines | Keith A. Witwer | 2022-12-06 |
| 11303176 | Coil winding for stators or rotors | Keith A. Witwer | 2022-04-12 |
| 10992211 | Method for producing rotors or stators of electric machines | Keith A. Witwer | 2021-04-27 |
| 10938282 | Method for producing a coil winding for inserting into radially open grooves of stators or rotors of electric machines | Keith A. Witwer | 2021-03-02 |
| 10615654 | Stator or rotor with interlaced wire groups forming an intertwined wave winding | Keith A. Witwer | 2020-04-07 |
| 8667666 | Method for producing stator or rotor with interlaced wire groups forming an intertwined wave winding | Keith A. Witwer | 2014-03-11 |
| 8020282 | Apparatus for producing a coil winding for stators or rotors of electrical machines | Keith A. Witwer | 2011-09-20 |
| 7703192 | Method for producing a coil winding for stators or rotors of electrical machines | Keith A. Witwer | 2010-04-27 |
| 7679254 | Method and apparatus for producing a coil winding for stators or rotors of electrical machines, and stator or rotor produced thereby | Keith A. Witwer | 2010-03-16 |
| 7385331 | Stator for electric machines | Keith A. Witwer | 2008-06-10 |
| 7281312 | Method and apparatus for introducing wave windings into rotor and stator lamination packets of electrical machines | Keith A. Witwer | 2007-10-16 |
| 7185414 | Apparatus for forming wave windings for rotor and stator lamination packets of electrical machines | — | 2007-03-06 |
| 6813825 | Method for producing a distributed wave winding | — | 2004-11-09 |
| 6640416 | Method for axially drawing coils into stators or rotors of electric machines | — | 2003-11-04 |
| 6601286 | Device for producing a distributed wave winding | — | 2003-08-05 |
| 6477762 | Method and device for producing a wave winding for stators or rotors of electric engines | — | 2002-11-12 |
| 6148499 | Method and device to draw-in coils into slots of stator laminated cores of electric machines | — | 2000-11-21 |
| 5406987 | Apparatus and method for producing a wave winding | Edmund Gassner | 1995-04-18 |