Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5466361 | Process for the disposal of aqueous sulfur and caustic-containing wastes | Roland H. Heck, Heinz-Walter Heinemann, P. Thomas Reischman, D. Duayne Whitehurst | 1995-11-14 |
| 4589487 | Viscous oil recovery | Valadi N. Venkatesan | 1986-05-20 |