| 6322290 |
Cable bolt head |
Frank Calandra, Jr., Eugene H. Stewart, Stanley Ponce, John G. Oldsen, John C. Stankus |
2001-11-27 |
| 6056482 |
Cable bolt head |
Frank Calandra, Jr., Eugene H. Stewart, Stanley Ponce, John G. Oldsen, John C. Stankus |
2000-05-02 |
| 5967703 |
Mine roof support system |
John C. Stankus, John G. Oldsen |
1999-10-19 |
| 5957627 |
Pillar cable truss system |
John C. Stankus, John G. Oldsen |
1999-09-28 |
| 5919006 |
Tensionable cable bolt with mixing assembly |
Frank Calandra, Jr., John C. Stankus, James J. Scott, John G. Oldsen, Kendal L. Taylor +1 more |
1999-07-06 |
| 5836720 |
Mine roof support system |
John C. Stankus, John G. Oldsen |
1998-11-17 |
| 5829922 |
Cable bolt head |
Frank Calandra, Jr., Eugene H. Stewart, Stanley Ponce, John G. Oldsen, John C. Stankus +1 more |
1998-11-03 |
| 5741092 |
Cable bolt driver |
John C. Stankus, John G. Oldsen |
1998-04-21 |
| 5699572 |
Combination cable spreader and cable driver |
James J. Scott, John G. Oldsen |
1997-12-23 |
| 5560740 |
Cable attachment device to spin single cables into resinous anchors in boreholes in geologic formation |
James J. Scott |
1996-10-01 |
| 5462391 |
Mine roof support cribbing system |
James J. Scott |
1995-10-31 |
| 5288176 |
Yielding grout compactor for mine roof support fixture |
Brian K. Huff, James J. Scott |
1994-02-22 |