Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4994149 | Diluent substitution apparatus | Jeffery E. Scott, David W. McDougall | 1991-02-19 |
| 4882041 | Diluent substitution process | Jeffery E. Scott, David W. McDougall | 1989-11-21 |