Thomas H. Lichti
31Patents
11h-index
32Co-inventors
75Inventor score
Filing activity: Oct 10, 1989 → Aug 28, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6276321A | Cam phaser having a torsional bias spring to offset retarding force of camshaft friction | Emerging Cross-Sectional Technologies | 39 | Expired |
| US5163872A | Compact camshaft phasing drive | Mechanical Engineering; Lighting; Heating | 31 | Expired |
| US5588404A | Variable cam phaser and method of assembly | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5937806A | Closed-loop camshaft phaser control | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US8534246B2 | Camshaft phaser with independent phasing and lock pin control | Mechanical Engineering; Lighting; Heating | 22 | Active |
| US5119691A | Hydraulic phasers and valve means therefor | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6412462B1 | Cam phaser apparatus having a stator integral with a back plate or a front cover plate | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7117833B2 | Readily-fillable hydraulic valve lifter assembly | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US6176210A | Axially-compact cam phaser having an inverted bearing | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5033327A | Camshaft phasing drive with wedge actuators | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6308672A | Front-mounting cam phaser module | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6405696B1 | Spline-type cam phaser | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US8662039B2 | Camshaft phaser with coaxial control valves | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US8397687B2 | Axially compact camshaft phaser | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US8726866B1 | Check valve for a camshaft phaser | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US9127575B2 | Camshaft phaser with coaxial control valves | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US9046013B2 | Camshaft phase | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US6742485B2 | Cam phaser locking pin assembly guide | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US9587526B2 | Camshaft phaser | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US9366162B1 | Camshaft phaser with position control valve | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US7614372B2 | Bias spring arbor for a camshaft phaser | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US7475661B2 | Camshaft phaser having a differential bevel gear system | Emerging Cross-Sectional Technologies | 3 | Active |
| US7562645B2 | Electromechanical camshaft phaser having a worm gear drive with a hypoid gear actuator | Emerging Cross-Sectional Technologies | 2 | Active |
| US7404540B2 | Primary pole piece for a solenoid actuator | Electricity | 2 | Expired |
| US9587527B2 | Camshaft phaser | Mechanical Engineering; Lighting; Heating | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.