Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5961709 | Environmentally improved asphalt compositions and their preparation | Roger E. Hayner, Patricia K. Doolin, Robert H. Wombles | 1999-10-05 |
| 4795745 | Macrophage-activating composition and a process for its manufacture | Karl O. P. Larm, Rolf Seljelid, Jarl Bogwald | 1989-01-03 |
| 4450241 | Endothermic removal of coke deposited on catalytic materials during carbo-metallic oil conversion | William P. Hettinger, Jr., Stephen M. Kovach | 1984-05-22 |
| 4425259 | Endothermic removal of coke deposited on catalytic materials during carbo-metallic oil conversion | William P. Hettinger, Jr., Stephen M. Kovach | 1984-01-10 |
| 4412914 | Endothermic removal of coke deposited on sorbent materials during carbo-metallic oil conversion | William P. Hettinger, Jr., Stephen M. Kovach | 1983-11-01 |