Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5908366 | Drive train for a vehicle | Christopher A. Weismann, Patrick L. Weismann, by Michele R. Weismann, executrix | 1999-06-01 |
| 5301565 | Transmission | Patrick L. Weismann | 1994-04-12 |
| 5131285 | Transmission | Patrick L. Weismann | 1992-07-21 |
| 4987790 | Transmission | — | 1991-01-29 |
| 4817451 | Control mechanism for selective engagement of a free wheeling engagement mechanism | — | 1989-04-04 |
| 4775342 | Stern drive | John A. Connor | 1988-10-04 |
| 4728308 | Stern drive | — | 1988-03-01 |
| 4601359 | Part time on-demand four-wheel drive vehicle transaxle with viscous clutch | Dugald Cameron, Richard E. Eastman | 1986-07-22 |
| 4582160 | Constant four wheel drive vehicle transaxle | Dugald Cameron | 1986-04-15 |