Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6948403 | Bowed crests for milled tooth bits | — | 2005-09-27 |
| 6856949 | Wear compensated roller cone drill bits | Sujian Huang | 2005-02-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6948403 | Bowed crests for milled tooth bits | — | 2005-09-27 |
| 6856949 | Wear compensated roller cone drill bits | Sujian Huang | 2005-02-15 |