Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8230952 | Sleeve structures for earth-boring tools, tools including sleeve structures and methods of forming such tools | Thorsten Schwefe, Thomas Ganz | 2012-07-31 |
| 8191657 | Rotary drag bits for cutting casing and drilling subterranean formations | Volker Richert | 2012-06-05 |