Mark L. Hopper
19Patents
7h-index
38Co-inventors
66Inventor score
Filing activity: Jun 1, 1999 → May 11, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6361287B1 | Fluid pumping system for automatic transmission | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US6926639B2 | Vehicle control method | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US10323541B2 | Bearing outer race retention during high load events | Emerging Cross-Sectional Technologies | 13 | Active |
| US8443843B2 | Air-oil separator | Mechanical Engineering; Lighting; Heating | 9 | Active |
| US6842673B2 | Engine engagement control for a hybrid electric vehicle | Emerging Cross-Sectional Technologies | 8 | Expired |
| US10711693B2 | Gas turbine engine with an engine rotor element turning device | Emerging Cross-Sectional Technologies | 8 | Active |
| US8292034B2 | Air-oil separator | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US6736228B2 | Electric machine with integrated wet clutches | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6123645A | Neutral idle control mechanism for a torque-transmitting clutch in a power transmission | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7154326B2 | Dither amplitude correction for constant current drivers | Electricity | 4 | Expired |
| US6117045A | Pressure ratio control system for a continuously variable drive unit | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US11454134B2 | Damper control valve for a turbomachine | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10329938B2 | Aspirating face seal starter tooth abradable pocket | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US7305942B2 | Electromechanical valve actuator | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US12410835B2 | Lubricant draining bearing assemblies | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12140034B2 | Turbine engine with a rotor seal retraction mechanism | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US7255073B2 | Electromechanical valve actuator beginning of stroke damper | Mechanical Engineering; Lighting; Heating | 0 | Expired |
| US7152558B2 | Electromechanical valve actuator assembly | Mechanical Engineering; Lighting; Heating | 0 | Expired |
| US7089894B2 | Electromechanical valve actuator assembly | Mechanical Engineering; Lighting; Heating | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.