Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D486362 | Bedding mattock | Christopher S. Larson, Bob Denman | 2004-02-10 |
| D486363 | Single prong cultivator | Christopher S. Larson, Bob Denman | 2004-02-10 |
| D482249 | Trench clean-out shovel | Christopher S. Larson, Bob Denman | 2003-11-18 |
| D481918 | Trench clean-out shovel | Christopher S. Larson, Bob Denman | 2003-11-11 |
| D477193 | Trench digging shovel | Christopher S. Larson, Bob Denman | 2003-07-15 |
| D476201 | Mattock | Christopher S. Larson, Bob Denman | 2003-06-24 |