Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7169266 | Low headroom coke drum unheading device | Robert Benoit, Gerald Bryant, Michael B. Knowles, Samuel A. Martin, Leslie P. Antalffy | 2007-01-30 |
| 6264829 | Low headroom coke drum deheading device | Leslie P. Antalffy, Robert Benoit, Gerald Bryant, Michael B. Knowles, Samuel A. Martin | 2001-07-24 |
| 5785843 | Low headroom coke drum deheading device | Leslie P. Antalffy, Robert Benoit, Gerald Bryant, Michael B. Knowles, Samuel A. Martin | 1998-07-28 |
| 5628603 | Automated chute system | Leslie P. Antalffy, Robert Benoit, Michael B. Knowles, Samuel A. Martin | 1997-05-13 |