Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12241829 | Method and apparatus for detecting chemical compounds in soil | David A. Perry, Linda Barrett | 2025-03-04 |
| 12007312 | Method and apparatus for detecting chemical compounds in soil | David A. Perry, Linda Barrett | 2024-06-11 |
| 11796463 | Method and apparatus for detecting chemical compounds in soil | David A. Perry, Linda Barrett | 2023-10-24 |