Issued Patents 2003
Showing 1–2 of 2 patents
| 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, Jerry O'Keefe | 2003-09-02 |
| 6546754 | Apparatus for silica crucible manufacture | Richard L. Hansen, Fred D'Orazio, Victor Lou | 2003-04-15 |