Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D803017 | Plant training stake | Sara Lais Mandel, Stephen J. Tillmann | 2017-11-21 |
| 8533991 | Thermoformed grow tube | Stephen J. Tillmann | 2013-09-17 |
| 8307580 | Spectrally selective grow tube | Christian E. Siems, Stephen J. Tillmann | 2012-11-13 |
| 8171668 | Spectrally selective grow tube | Christian E. Siems, Stephen J. Tillmann | 2012-05-08 |
| 7892377 | Dimensionally stable horticultural netting | Christian E. Siems, Stephen J. Tillmann | 2011-02-22 |
| 6263613 | Seedling growth enhancing device | Lawrence H. King | 2001-07-24 |
| 6138404 | Seedling growth enhancing device | Lawrence H. King | 2000-10-31 |
| 6119392 | Seedling growth enhancing device | — | 2000-09-19 |