Keith A. Witwer
18Patents
6h-index
5Co-inventors
59Inventor score
Filing activity: Aug 17, 1981 → Mar 24, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7281312B2 | Method and apparatus for introducing wave windings into rotor and stator lamination packets of electrical machines | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4455743A | Apparatus and method for placing coils and phase insulation in the slots of a dynamoelectric machine stator core member | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7703192B2 | Method for producing a coil winding for stators or rotors of electrical machines | Emerging Cross-Sectional Technologies | 10 | Active |
| US8667666B2 | Method for producing stator or rotor with interlaced wire groups forming an intertwined wave winding | Emerging Cross-Sectional Technologies | 8 | Active |
| US4480379A | Stack height adjustment for coil placing machines | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4566180A | Method and apparatus for placing coils and intermediate insulators in cores | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4831715A | Method and apparatus for positioning intermediate insulators in cores | Emerging Cross-Sectional Technologies | 5 | Expired |
| US10615654B2 | Stator or rotor with interlaced wire groups forming an intertwined wave winding | Emerging Cross-Sectional Technologies | 3 | Active |
| US7385331B2 | Stator for electric machines | Electricity | 2 | Active |
| US10992211B2 | Method for producing rotors or stators of electric machines | Emerging Cross-Sectional Technologies | 1 | Active |
| US8020282B2 | Apparatus for producing a coil winding for stators or rotors of electrical machines | Emerging Cross-Sectional Technologies | 0 | Active |
| US5044068A | Blade pack extension and wedge guide support | Emerging Cross-Sectional Technologies | 0 | Expired |
| US11522422B2 | Device for producing rotors or stators of electric machines | Emerging Cross-Sectional Technologies | 0 | Active |
| US10938282B2 | Method for producing a coil winding for inserting into radially open grooves of stators or rotors of electric machines | Electricity | 0 | Active |
| US11303176B2 | Coil winding for stators or rotors | Electricity | 0 | Active |
| US12374972B2 | Method for producing a coil winding for insertion into radially open slots of stators or rotors of electrical machines | Electricity | 0 | Active |
| US7679254B2 | Method and apparatus for producing a coil winding for stators or rotors of electrical machines, and stator or rotor produced thereby | Emerging Cross-Sectional Technologies | 0 | Active |
| US6155094A | Pressing tool for forming winding end turns in a stator | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.