Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5919645 | Method for the direct determination of the toxicity of particulate solids | Ker-Kong Tung, Grace Scheibner | 1999-07-06 |
| 5573954 | Method of obtaining small representative solid-phase samples | Malbone W. Greene, Don Isenberg | 1996-11-12 |
| 5426035 | Method of compensating toxicity test data for the measured toxicity of a reference sample | Malbone W. Greene, Don Isenberg | 1995-06-20 |
| 5215885 | Stable two-part chromogen substrate | David J. Marrujo, Rose Cernosek, Patrick F. Coleman | 1993-06-01 |