Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10941819 | Viscous clutch and method of operation | David R. Hennessy | 2021-03-09 |
| 10612606 | Viscous clutch and associated electromagnetic coil | David R. Hennessy | 2020-04-07 |
| 10578170 | Live center viscous clutch | Scott C. Miller, Michael J. Stevens | 2020-03-03 |
| 10385932 | Viscous clutch and associated flux circuit configuration | Raimund Krammer, Bastian Brand | 2019-08-20 |
| 9709103 | Viscous clutch and associated reservoir configuration | Raimund Krammer, Bastian Brand | 2017-07-18 |
| 9506507 | Multi-speed viscous clutch | Scott C. Miller | 2016-11-29 |
| 9453541 | Viscous clutch and associated reservoir configuration | Raimund Krammer, Bastian Brand | 2016-09-27 |
| 8881881 | Viscous clutch valve assembly | William Frances Gevers, Scott C. Miller | 2014-11-11 |