Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6612655 | Mining system and method featuring a bread loaf shaped borehole | Jeffrey J. Schwoebel, Donald B. Sult, Rudy Paul Zych, George Coleman | 2003-09-02 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6612655 | Mining system and method featuring a bread loaf shaped borehole | Jeffrey J. Schwoebel, Donald B. Sult, Rudy Paul Zych, George Coleman | 2003-09-02 |