Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8979062 | Secondary activation of packer and method | — | 2015-03-17 |
| 8632047 | Shear blade geometry and method | Christopher A. Hall, Robert Arnold Judge | 2014-01-21 |
| 8505870 | Shear blade geometry and method | Luis Melendez | 2013-08-13 |
| 8439327 | Shear block and blade interface and method | Christopher A. Hall, John Gregory Landthrip | 2013-05-14 |
| 8408514 | Lock mechanism for blowout preventer and method | — | 2013-04-02 |
| 8225857 | Breech lock mechanisms for blowout preventer and method | Robert Arnold Judge | 2012-07-24 |