Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12163874 | Variable soil sampling device | Donald Lee Smith, Shane M. Essay | 2024-12-10 |
| 11300483 | Versatile passive air sampler | Donald Lee Smith | 2022-04-12 |
| 11079306 | Variable soil sampling device | Donald Lee Smith | 2021-08-03 |
| 10697864 | Versatile passive air sampler | Donald Lee Smith | 2020-06-30 |
| 8082808 | Air sampling system | Linda L. Freeman, Heidi C. Hayes, Bradley A. Mosakowski, Donald Lee Smith, Mark A. McFeely +1 more | 2011-12-27 |
| D617911 | Stand for air samplers | Linda L. Freeman, Heidi C. Hayes, Bradley A. Mosakowski, Donald Lee Smith, Mark A. McFreely +1 more | 2010-06-15 |