Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7152701 | Cutting element structure for roller cone bit | Richard Butland, John James Herman, Ronald Birne-Browne, Per Ivar Nese, J. Daniel Belnap | 2006-12-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7152701 | Cutting element structure for roller cone bit | Richard Butland, John James Herman, Ronald Birne-Browne, Per Ivar Nese, J. Daniel Belnap | 2006-12-26 |