Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643442 | Membrane process for enhanced distillate or hydrotreated distillate aromatics reduction | James Sweet Sweet, Charles P. Darnell | 1997-07-01 |
| 5635055 | Membrane process for increasing conversion of catalytic cracking or thermal cracking units (LAW011) | James R. Sweet, Charles P. Darnell | 1997-06-03 |