| 7799177 |
Valve installation apparatus and methods |
John W. Oder, Leslie P. Antalffy, Kenneth D. Kirkpatrick, Michael B. Knowles, George T. West |
2010-09-21 |
| 7416204 |
Lightweight narrow-span fifth wheel |
William J. Hicks, Roger L. Elkins, Steven C. Dupay, Mark M. Audo |
2008-08-26 |
| 7189310 |
Coke chute systems and methods therefor |
Leslie P. Antalffy, John W. Oder, Michael B. Knowles, George T. West |
2007-03-13 |
| 7169266 |
Low headroom coke drum unheading device |
Robert Benoit, Gerald Bryant, Michael B. Knowles, David W. Malek, Leslie P. Antalffy |
2007-01-30 |
| 7108768 |
Safety lock boltless closures |
John W. Oder, Leslie P. Antalffy, Michael B. Knowles, George T. West |
2006-09-19 |
| 6926013 |
Apparatus and methods for shielding high-pressure fluid devices |
Leslie P. Antalffy, Bruce Kerr, Michael B. Knowles, John W. Oder, George T. West |
2005-08-09 |
| 6264829 |
Low headroom coke drum deheading device |
Leslie P. Antalffy, Robert Benoit, Gerald Bryant, Michael B. Knowles, David W. Malek |
2001-07-24 |
| 6113745 |
Coke drum system with movable floor |
Charles Maitland, Bruce Kerr, Michael B. Knowles, Leslie P. Antalffy |
2000-09-05 |
| 5846034 |
Automated drill stem guide and method |
Leslie P. Antalffy, Michael B. Knowles, William R. Sines |
1998-12-08 |
| 5785843 |
Low headroom coke drum deheading device |
Leslie P. Antalffy, Robert Benoit, Gerald Bryant, Michael B. Knowles, David W. Malek |
1998-07-28 |
| 5628603 |
Automated chute system |
Leslie P. Antalffy, Robert Benoit, Michael B. Knowles, David W. Malek |
1997-05-13 |
| D273467 |
Kingpin gage |
— |
1984-04-17 |
| 4443025 |
Fifth wheel assembly |
Fredrick J. Bakker, Gerald W. Hungerink, Jack L. Gisinger, James H. Bush |
1984-04-17 |
| 4428595 |
Fifth wheel hitch |
Fredrick J. Bakker |
1984-01-31 |
| 4199168 |
Fifth wheel suspension |
James H. Bush |
1980-04-22 |