Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6350372 | Mercury removal in petroleum crude using H2S/C | Thomas F. Degnan | 2002-02-26 |
| 6251307 | Metal passivation for anode grade petroleum coke | Arthur W. Chester, Gary Lester Smith | 2001-06-26 |
| 6024863 | Metal passivation for anode grade petroleum coke | Arthur W. Chester, Gary Lester Smith | 2000-02-15 |