Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6936087 | Soil conditioning agglomerates containing calcium | Roy M. Stephen | 2005-08-30 |
| 6413291 | Soil conditioning agglomerates containing calcium | Roy M. Stephen | 2002-07-02 |
| 6325836 | Soil conditioning agglomerates containing calcium | Carl A. Holley, Eugene J. Greskovich | 2001-12-04 |
| 6287356 | Soil conditioning agglomerates containing calcium | Carl A. Holley, Eugene J. Greskovich | 2001-09-11 |
| 5997599 | Soil conditioning agglomerates containing cement kiln dust | Carl A. Holley, Eugene J. Greskovich | 1999-12-07 |
| 5743934 | Soil conditioning agglomerates containing cement kiln dust | Carl A. Holley, Eugene J. Greskovich | 1998-04-28 |