Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6769500 | Optimized earth boring seal means | — | 2004-08-03 |
| 6725947 | Roller bits with bearing failure indication, and related methods, systems, and methods of manufacturing | Yuri A. Palaschenko | 2004-04-27 |