Issued Patents 2011
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D650052 | Seal for head assembly | — | 2011-12-06 |
| D649228 | Seal for head assembly | — | 2011-11-22 |
| D649167 | Core barrel head assembly with tapered design | — | 2011-11-22 |
| D648836 | Seal for head assembly | — | 2011-11-15 |
| 8051924 | Methods of braking core barrel assemblies | — | 2011-11-08 |
| 8051925 | Core barrel assemblies with braking devices | — | 2011-11-08 |
| D647540 | Core barrel sleeve with axial grooves | — | 2011-10-25 |
| D644673 | Core lifter | Hongyan Zhang | 2011-09-06 |
| D644668 | Core barrel head assembly with axial groove | — | 2011-09-06 |
| 8006783 | Helical drilling apparatus, systems, and methods | Michael D. Rupp | 2011-08-30 |
| D643859 | Core barrel assembly with tapered design | — | 2011-08-23 |
| D643443 | Core barrel latch body with axial grooves | — | 2011-08-16 |
| 7967085 | Braking devices for use in drilling operations | — | 2011-06-28 |
| 7921926 | Jointed spearhead assembly | George Ibrahim, Anthony Lachance | 2011-04-12 |
| 7900716 | Vibratory unit for drilling systems | George Ibrahim, Anthony Lachance | 2011-03-08 |