Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5041404 | Method of presulfiding a hydrotreating, hydrocracking or tail gas treating catalyst | James Seamans, James Gerard Welch, Charles T. Adams | 1991-08-20 |
| 4943547 | Method of presulfiding a hydrotreating catalyst | James Seamans, James Gerard Welch | 1990-07-24 |