Timothy Mark Lancefield
32Patents
9h-index
10Co-inventors
72Inventor score
Filing activity: Apr 11, 1990 → Apr 30, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6725817B2 | Variable phase drive mechanism | Emerging Cross-Sectional Technologies | 47 | Expired |
| US7444968B2 | Variable phase drive coupling | Mechanical Engineering; Lighting; Heating | 23 | Active |
| US6213071A | Variable phase coupling | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6247436A | Engine front cover | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US7284517B2 | Camshaft to phaser coupling | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US7270096B2 | Variable phase drive mechanism | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6253720A | Variable phase coupling | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7210440B2 | Camshaft assembly | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6308669A | Phase change coupling | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6182362A | Method of manufacturing a multi-component camshaft | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6354255B1 | Valve actuating mechanism | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US7958859B2 | Camshaft assembly | Emerging Cross-Sectional Technologies | 9 | Active |
| US5671706A | Variable valve timing | Emerging Cross-Sectional Technologies | 8 | Expired |
| US8225762B2 | Camshaft assembly | Emerging Cross-Sectional Technologies | 7 | Active |
| US7938090B2 | Variable phase mechanism | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US7051688B2 | Camshaft phase shifting mechanism | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US8113158B2 | Engine with variable valve actuating mechanism | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US8261705B2 | Camshaft and phaser assembly | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US7134411B2 | Valve operating mechanism | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US7273024B2 | Engine with variable valve timing | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US7895979B2 | Valve mechanism for an engine | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US4995358A | Internal combustion engines | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7819099B2 | Rotary hydraulic coupling | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US7311072B2 | Control unit for a valve, especially a gas exchange valve of an internal combustion engine | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US6263845A | Phase change mechanism | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.