Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6981599 | High capacity shear mechanism | Howard Sommerfeld | 2006-01-03 |
| 6499613 | Coupler with extended emergency release and towing feature | George C. Mullis | 2002-12-31 |
| 6000564 | Roller equipped uncoupling cam | Steven C. Rumsey | 1999-12-14 |
| 5954211 | Roller equipped uncoupling cam | Steven C. Rumsey | 1999-09-21 |