Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6318522 | Rotary damper with magnetic seals | Michael Oliver, Richard E. Longhouse, Brian P. Heber, William C. Kruckemeyer | 2001-11-20 |
| 6161662 | Suspension damper for motor vehicle | Richard E. Longhouse, William C. Kruckemeyer, Michael Oliver, Donelle Robert Mills | 2000-12-19 |
| 6106078 | Pressure augmentation for brake apply system | Michael Oliver, William C. Kruckemeyer, John Benjamin Hageman, Ernst Baumgartner, Donald Edward Schenk | 2000-08-22 |
| 6085877 | Bi-Directional Multiple State Suspension Damper | Steven Ray Robinson, James Louis Lopez, Jr., Donelle Robert Mills, Richard E. Longhouse, Michael Oliver | 2000-07-11 |
| 6036183 | Bi-state hydraulic engine mount | Chiung Alex Lee, Jay Michael Shores, William C. Kruckemeyer, Mark Long, Frederick C. Miller | 2000-03-14 |
| 5927827 | Pressure equalization in a proportionally regulated fluid system | David Fredrick Reuter, James William Zehnder, II | 1999-07-27 |
| 5896964 | Split rotor cooling fan clutch | William C. Kruckemeyer, Michael Oliver, Swaminathan Gopalswamy, Samuel Miller Linzell, Gary Lee Jones | 1999-04-27 |
| 5896965 | Magnetorheological fluid fan clutch | Swaminathan Gopalswamy, Samuel Miller Linzell, Gary Lee Jones, William C. Kruckemeyer | 1999-04-27 |
| 5855417 | Integral control and isolation valve proportional brake system | James William Zehnder, II, William C. Kruckemeyer, Michael Oliver | 1999-01-05 |
| 5848678 | Passive magnetorheological clutch | William C. Kruckemeyer, Richard E. Longhouse | 1998-12-15 |
| 5715680 | Hydraulic power booster for a brake apply system | William C. Kruckemeyer, Michael Oliver, James William Zehnder, II | 1998-02-10 |
| 5690396 | Proportional fluid pressure regulation system | James William Zehnder, II, William C. Kruckemeyer, Richard E. Longhouse, Michael Oliver | 1997-11-25 |
| 5620028 | Brake Module with integrated accumulator | James William Zehnder, II, Richard E. Longhouse, William C. Kruckemeyer, Michael Oliver | 1997-04-15 |
| 5609401 | Proportional braking system with dual poppet valves | James William Zehnder, II, William C. Kruckemeyer, Michael Oliver, Richard E. Longhouse | 1997-03-11 |
| 5605384 | Access valve evacuation and fill of inaccessible cavities | William C. Kruckemeyer, James William Zehnder, II, Michael Oliver | 1997-02-25 |
| 5070970 | Multi-tube shock absorber | William C. Kruckemeyer, Richard E. Longhouse | 1991-12-10 |
| 5070971 | Molded piston for a hydraulic damper | Stephen E. Dourson, Kurt E. Olson | 1991-12-10 |
| 5070972 | Vortex valving assembly for a hydraulic damper | Stephen E. Dourson | 1991-12-10 |
| 4741421 | Viscous clutch for engine cooling fan with improved fluid flow path control and feed to shear zone | — | 1988-05-03 |
| 4699258 | Viscous clutch for engine cooling fan with optimized low speed disengagement | Harvey J. Lambert | 1987-10-13 |
| 4630721 | Viscous clutch for engine cooling fan | Harvey J. Lambert | 1986-12-23 |