Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6684966 | PCD face seal for earth-boring bit | Chih Lin, Danny E. Scott | 2004-02-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6684966 | PCD face seal for earth-boring bit | Chih Lin, Danny E. Scott | 2004-02-03 |