Peter A. Kershaw
26Patents
15h-index
18Co-inventors
78Inventor score
Filing activity: Jan 25, 1979 → Jun 6, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5997261A | Pump motor having fluid cooling system | Electricity | 84 | Expired |
| US5944497A | Fan assembly having an air directing member to cool a motor | Mechanical Engineering; Lighting; Heating | 62 | Expired |
| US5660149A | Total cooling assembly for I.C. engine-powered vehicles | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4910790A | Two-speed motor | Electricity | 35 | Expired |
| US5925999A | Three-speed dual-winding direct current permanent magnet motor method and apparatus | Electricity | 35 | Expired |
| US5818133A | Brushless motor with tubular bearing support | Electricity | 28 | Expired |
| US5949171A | Divisible lamination brushless pump-motor having fluid cooling system | Emerging Cross-Sectional Technologies | 28 | Expired |
| US6111334A | Divisible lamination brushless pump-motor having fluid cooling system | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4884844A | Double stage taumel gear reduction unit | Performing Operations; Transporting | 24 | Expired |
| US6448676B1 | Pulse width modulated engine cooling fan motor with integrated MOSFET | Electricity | 19 | Expired |
| US6142213A | Ducted cooling system with radial-flow fan | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US5945756A | Ultra quiet electric motor for automotive applications | Electricity | 17 | Expired |
| US5917258A | Bearing assembly for an ultra quiet electric motor | Electricity | 16 | Expired |
| US6694599B1 | Method of connecting commutator bars in a cross-linked commutator having additional parallel paths | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5299811A | Seal member mounted in housing pocket by resilient retaining member | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5845612A | Total cooling assembley for I. C. engine-powered vehicles | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6174143A | Pump motor having submersible stator and rotor and insulated winding set terminals | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5970925A | Total cooling assembly for I. C. engine-powered vehicles | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6208052A | Cooling module for an electronically controlled engine | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US6617744B2 | DC motor brush card assembly having attaching structures and multiple choke coils with elongated portions | Electricity | 10 | Expired |
| US5989151A | Hybrid engine cooling system having electric motor with electro-magnetic clutch | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5977666A | Electric motor having brush noise absorption system | Electricity | 8 | Expired |
| US4224047A | Method of fusing a sight glass to a metal part | Chemistry; Metallurgy | 4 | Expired |
| US6624546B2 | Radio-frequency interference suppressing choke with elongated portions for brush-type motors | Electricity | 2 | Expired |
| US6995490B2 | Flux modifier for a permanent magnet brush-type motor using wound field coils combined with permanent magnets | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.