Keith Hampton
113Patents
20h-index
39Co-inventors
90Inventor score
Filing activity: Aug 25, 1986 → Dec 23, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5660153A | Valve control system | Mechanical Engineering; Lighting; Heating | 67 | Expired |
| US5967273A | Magneto-rheological fluid coupling | Mechanical Engineering; Lighting; Heating | 58 | Expired |
| US6321704A | Hydraulically actuated latching valve deactivation | Mechanical Engineering; Lighting; Heating | 55 | Expired |
| US5623897A | Engine valve control system using a latchable rocker arm activated by a solenoid mechanism | Mechanical Engineering; Lighting; Heating | 49 | Expired |
| US5655488A | Dual event valve control system | Mechanical Engineering; Lighting; Heating | 44 | Expired |
| US5619958A | Engine valve control system using a latchable rocker arm | Mechanical Engineering; Lighting; Heating | 44 | Expired |
| US4754727A | Device for varying engine valve timing | Mechanical Engineering; Lighting; Heating | 39 | Expired |
| US5078647A | Camshaft phase change device with roller clutches | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US5529033A | Multiple rocker arm valve control system | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US5234088A | Phase change device with splitter spring | Mechanical Engineering; Lighting; Heating | 31 | Expired |
| US5131829A | Trapped volume vent means for meshing lobes of roots-type supercharger | Mechanical Engineering; Lighting; Heating | 31 | Expired |
| US4841924A | Sealed camshaft phase change device | Emerging Cross-Sectional Technologies | 27 | Expired |
| US8365710B2 | Ignitor for air/fuel mixture and engine therewith and method of assembly thereof into a cylinder head | Emerging Cross-Sectional Technologies | 26 | Active |
| US6354265B1 | Electro-mechanical latching rocker arm engine brake | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US5682848A | Engine valve control system using a latchable rocker arm activated by a solenoid mechanism | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US5078583A | Inlet port opening for a roots-type blower | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US5697333A | Dual lift actuation means | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5235941A | Actuator for camshaft phase change device | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US8578902B2 | Corona ignition with self-tuning power amplifier | Mechanical Engineering; Lighting; Heating | 21 | Active |
| US9827963B2 | Aspirators for producing vacuum using the Venturi effect | Emerging Cross-Sectional Technologies | 20 | Active |
| US5690066A | Engine valve control actuator with knee action linkage | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5040651A | Self actuator for cam phaser with sprag clutch | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US5337711A | Camshaft phase change device | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US5172662A | Camshaft phase change device | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| USD821302S1 | Venturi device | General | 14 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.