Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12352740 | Soil analysis compositions and methods | Richard Petroski | 2025-07-08 |
| 12044665 | Soil analysis compositions and methods | Richard Petroski | 2024-07-23 |
| 11555286 | Stabilizing structural fills | Leonard Nelson, Matthew D. Campbell | 2023-01-17 |