Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7444968 | Variable phase drive coupling | Timothy Mark Lancefield | 2008-11-04 |
| 7318399 | Variable valve mechanism | — | 2008-01-15 |
| 7311072 | Control unit for a valve, especially a gas exchange valve of an internal combustion engine | Hermann Hoffmann, Timothy Mark Lancefield, Martin Lechner | 2007-12-25 |
| 7287499 | Camshaft assembly | Nicholas J. Lawrence, Richard Alwyn Owen | 2007-10-30 |
| 7273024 | Engine with variable valve timing | Timothy Mark Lancefield, Richard Alwyn Owen, Nicholas J. Lawrence | 2007-09-25 |
| 7210440 | Camshaft assembly | Nicholas J. Lawrence, Richard Alwyn Owen, Timothy Mark Lancefield | 2007-05-01 |
| 7134411 | Valve operating mechanism | Timothy Mark Lancefield, Nicholas J. Lawrence, Mark Walton | 2006-11-14 |
| 7117831 | Engine with variable lift valve mechanism | — | 2006-10-10 |
| 6941910 | Adjustable valve control system with twin cams and cam lift summation lever | — | 2005-09-13 |
| 6854434 | Engine with variable valve mechanism | — | 2005-02-15 |
| 6725818 | Variable camshaft assembly | — | 2004-04-27 |
| 6725817 | Variable phase drive mechanism | Timothy Mark Lancefield | 2004-04-27 |
| 6591800 | Phase change mechanism | — | 2003-07-15 |
| 6354255 | Valve actuating mechanism | Timothy Mark Lancefield | 2002-03-12 |
| 6308669 | Phase change coupling | Timothy Mark Lancefield | 2001-10-30 |
| 6263845 | Phase change mechanism | Timothy Mark Lancefield | 2001-07-24 |
| 6253720 | Variable phase coupling | Timothy Mark Lancefield | 2001-07-03 |
| 6253719 | Variable phase mechanism | — | 2001-07-03 |
| 6250267 | Rolling element phaser | — | 2001-06-26 |
| 6247436 | Engine front cover | Timothy Mark Lancefield | 2001-06-19 |
| 6213071 | Variable phase coupling | Timothy Mark Lancefield | 2001-04-10 |