Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7726497 | Removable externally mounted slewing crane for shipping containers | Darryl Updegrove, James E. Sovel | 2010-06-01 |
| 7621410 | Removable externally mounted bridge crane for shipping containers | Darryl Updegrove, James E. Sovel | 2009-11-24 |