Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6601662 | Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength | Nigel Dennis Griffin, Peter Raymond Hughes | 2003-08-05 |
| 6575350 | Method of applying a wear-resistant layer to a surface of a downhole component | Stephen M. Evans, Tom Scott Roberts | 2003-06-10 |