Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7509759 | System and method of dewatering dredge spoils using sloping drain barge | Kenneth Preston, Thomas Edward Coultas | 2009-03-31 |
| 7350322 | Dewatering system apparatus and method for dredging buckets | — | 2008-04-01 |