Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9951845 | Transmission with dual input and gear ratio multiplication | Jeffrey Hemphill, David Smith | 2018-04-24 |
| 9625023 | Torque converter damper with shudder control | Jeffrey Hemphill, Michael G. Swank, Ashi Uppal | 2017-04-18 |
| 9587727 | Transmission with dual input and output shafts | Jeffrey Hemphill, David Smith | 2017-03-07 |
| 8512188 | Drive train of a hybrid vehicle and hybrid vehicle | Jeffrey Hemphill | 2013-08-20 |
| 7846059 | Automatic transmission with dry clutches, multi-purpose actuators, or damper | Jeffrey Hemphill | 2010-12-07 |
| 7762917 | Torque-filling power transfer assembly for a manual transmission | Jeffrey Hemphill | 2010-07-27 |
| 7445099 | Torque transmission device | William Brees | 2008-11-04 |
| 6494303 | Torsional vibration damper for a torque transmitting apparatus | Wolfgang Reik, Shailesh Shrikant Kozarekar, William Brees | 2002-12-17 |
| 6293379 | Hydrokinetic torque converter | Mircea Gradu, Uwe Wagner, Volker Middelmann, Shailesh Shrikant Kozarekar, Wolfgang Reik | 2001-09-25 |
| 6050375 | Hydrokinetic torque converter | Mircea Gradu, Uwe Wagner, Volker Middelmann, Shailesh Shrikant Kozarekar, Wolfgang Reik | 2000-04-18 |
| 5823312 | Automatically adjustable friction clutch | Wolfgang Reik, Karl-Ludwig Kimmig, Christoph Wittmann | 1998-10-20 |
| 5667048 | Clutch disengaging device | — | 1997-09-16 |
| 5409091 | Automatically adjustable friction clutch | Wolfgang Reik, Karl-Ludwig Kimmig, Christoph Wittmann | 1995-04-25 |
| 5152385 | Friction clutch | — | 1992-10-06 |
| 4883153 | Friction clutch | Lothar Huber, Kurt Frietsch, Paul Maucher | 1989-11-28 |
| 4684007 | Clutch plate | — | 1987-08-04 |
| 4310083 | Device for connecting a driving element to a driven element so as to be locked against mutual rotation, and for separating the same | — | 1982-01-12 |
| 4259986 | Control apparatus for a hydraulic power consumer | Friedrich-Wilhelm Hofer, Gunther Schwerin | 1981-04-07 |
| 4258610 | Control apparatus for a hydraulic power consumer | Friedrich-Wilheim Hofer, Gunther Schwerin | 1981-03-31 |