Issued Patents All Time
Showing 51–75 of 89 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7025042 | Methods of operation for controlled temperature combustion engines using gasoline-like fuel, particularly multicylinder homogenous charge compression ignition (HCCI) engines | — | 2006-04-11 |
| 7014429 | High-efficiency, large angle, variable displacement hydraulic pump/motor | Andrew Moskalik, Matthew J. Brusstar, David Keith Gill, Keven Berent Fuqua, Craig Douglas Moffat | 2006-03-21 |
| 6996982 | Method and device for switching hydraulic fluid supplies, such as for a hydraulic pump/motor | — | 2006-02-14 |
| 6998727 | Methods of operating a parallel hybrid vehicle having an internal combustion engine and a secondary power source | — | 2006-02-14 |
| 6910459 | HCCI engine with combustion-tailoring chamber | Ruonan Sun, Karl H. Hellman | 2005-06-28 |
| 6876098 | Methods of operating a series hybrid vehicle | — | 2005-04-05 |
| 6857263 | Low emission diesel combustion system with low charge-air oxygen concentration levels and high fuel injection pressures | David James Haugen | 2005-02-22 |
| 6752105 | Piston-in-piston variable compression ratio engine | — | 2004-06-22 |
| 6719080 | Hydraulic hybrid vehicle | — | 2004-04-13 |
| 6652247 | Fully-controlled, free-piston engine | — | 2003-11-25 |
| 6651432 | Controlled temperature combustion engine | — | 2003-11-25 |
| 6619325 | Hydraulic hybrid accumulator shut-off valve | — | 2003-09-16 |
| 6582204 | Fully-controlled, free-piston engine | — | 2003-06-24 |
| 6578533 | Controlled homogeneous-charge, compression-ignition engine | — | 2003-06-17 |
| 6470682 | Low emission, diesel-cycle engine | — | 2002-10-29 |
| 6415607 | High efficiency, air bottoming engine | — | 2002-07-09 |
| 6386154 | Pumped EGR system | Karl H. Hellman | 2002-05-14 |
| 6301888 | Low emission, diesel-cycle engine | — | 2001-10-16 |
| 6301891 | High efficiency, air bottoming engine | — | 2001-10-16 |
| 6216462 | High efficiency, air bottoming engine | — | 2001-04-17 |
| 6202416 | Dual-cylinder expander engine and combustion method with two expansion strokes per cycle | — | 2001-03-20 |
| 6189493 | Torque balanced opposed-piston engine | — | 2001-02-20 |
| 6186126 | Phase change heat engine | — | 2001-02-13 |
| 6170524 | Fast valve and actuator | — | 2001-01-09 |
| 5887674 | Continuously smooth transmission | — | 1999-03-30 |