Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10323462 | Stabilizer-reamer for drill string | Harrie Oort, Nicholas Biggs, Etienne Lamine | 2019-06-18 |
| 8960335 | Bit for drilling wells and associated drilling method | Abdelhakim Hahati, Sebastian Desmette, Benoit Deschamps, Matthieu Naegel | 2015-02-24 |
| 6296069 | Bladed drill bit with centrally distributed diamond cutters | Etienne Lamine | 2001-10-02 |
| 6102142 | Drilling tool with shock absorbers | Alain Besson, Pierre Lecour | 2000-08-15 |
| 5823277 | Cutting edge for monobloc drilling tools | Alain Besson | 1998-10-20 |
| 5755298 | Hardfacing with coated diamond particles | James W. Langford, Jr. | 1998-05-26 |
| 5755299 | Hardfacing with coated diamond particles | James W. Langford, Jr. | 1998-05-26 |
| 5560439 | Method and apparatus for reducing the vibration and whirling of drill bits and the bottom hole assembly in drilling used to drill oil and gas wells | Hwa-Shan Ho | 1996-10-01 |