Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8079429 | Methods of forming earth-boring tools using geometric compensation and tools formed by such methods | John H. Stevens, James L. Duggan, Nicholas J. Lyons, Jimmy W. Eason, Oliver Matthews | 2011-12-20 |
| 8043555 | Cemented tungsten carbide rock bit cone | Trevor Burgess, Jimmy W. Eason | 2011-10-25 |
| 7914006 | Drilling tool with elastomer seal having graded properties | Terry J. Koltermann | 2011-03-29 |