Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8800237 | Precast wall section and method of building a wall | — | 2014-08-12 |
| 7690298 | Waste compaction unit | Michael J. Hawker | 2010-04-06 |
| D557869 | Bin | Michael J. Hawker | 2007-12-18 |
| 7226209 | Bulk bags | P. William Warburg, M. John Hawker | 2007-06-05 |
| 6390675 | Bag | — | 2002-05-21 |