Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10850352 | Method of laser cutting grooves in a friction clutch plate | Huaxin Li | 2020-12-01 |
| 9400018 | Flutter reducing wet clutch friction plate | Larry D. Diemer | 2016-07-26 |
| 9109641 | Formed friction plate for wet friction clutch | Charles S. Davis, Jeffrey J. McFarland, Larry D. Diemer | 2015-08-18 |
| 7101306 | Bi-directional four-mode clutch for providing low and reverse gear ratios in a transmission | Christopher E. Blair, R. Keith Martin, Melissa Koenig, Brian K. Stefina | 2006-09-05 |
| 6832674 | Bi-directional four-mode clutch | Christopher E. Blair, R. Keith Martin, Melissa Koenig, Brian K. Stefina | 2004-12-21 |
| 6830531 | Control strategy for load sharing between a friction clutch and one-way clutch to effect low and reverse gear ratios in a transmission | Melissa Koenig, R. Keith Martin | 2004-12-14 |
| 6745881 | One-way clutch assembly having integrated damping | — | 2004-06-08 |
| 6644453 | Waved friction plate and assembly | — | 2003-11-11 |
| 6543596 | Multi-disk friction device having low-drag characteristics | R. Keith Martin | 2003-04-08 |
| 6244407 | Multi-disk friction device having forced lubrication on demand | R. Keith Martin, Graham M. Annear, William J. Zdeblick | 2001-06-12 |
| 6189669 | Multi-disk friction device having forced lubrication on demand | Paul T. McCrary, R. Keith Martin | 2001-02-20 |
| 6092634 | Compliant cage for a roller-type bi-directional one-way clutch mechanism | David C. Choate, James R. Quigley | 2000-07-25 |