Alan D. Crapo
15Patents
10h-index
11Co-inventors
69Inventor score
Filing activity: Oct 30, 1987 → Apr 20, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5532534A | Brushless permanent magnet condenser motor for refrigeration | Electricity | 59 | Expired |
| US6707209B2 | Reduced cogging torque permanent magnet electric machine with rotor having offset sections | Electricity | 55 | Expired |
| US5177054A | Flux trapped superconductor motor and method therefor | Emerging Cross-Sectional Technologies | 45 | Expired |
| US4858044A | Disc drive spindle motor with low cogging torque | Physics | 36 | Expired |
| US6717314B2 | Interior permanent magnet motor for use in washing machines | Electricity | 29 | Expired |
| US6946760B2 | Brushless permanent magnet motor with high power density, low cogging and low vibration | Electricity | 18 | Expired |
| US7245054B1 | Permanent magnet electric machine having reduced cogging torque | Electricity | 14 | Expired |
| US7709992B2 | Electric machine | Electricity | 11 | Active |
| US6727623B2 | Reduced impedance interior permanent magnet machine | Electricity | 11 | Expired |
| US6597078B2 | Electric power steering system including a permanent magnet motor | Electricity | 10 | Expired |
| US5144179A | Superconducting brushless homopolar motor with multiple winding rotor | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5138207A | Flux trapped superconductor sychronous motor with creep compensation | Electricity | 8 | Expired |
| US7034423B2 | Electric power steering system including a permanent magnet motor | Electricity | 7 | Expired |
| US5696416A | Mounting of motor for refrigeration | Electricity | 7 | Expired |
| US8288913B1 | Exposed bar induction motor with punched-to-size air gap | Emerging Cross-Sectional Technologies | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.