Issued Patents 2020
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10851619 | Top tooth ball seat | Matthew Stone, Colin Andrew, Omar H. Balcazar, Partha Ganguly, Michael H. Johnson +1 more | 2020-12-01 |
| 10822912 | Multi-layer packer backup ring with closed extrusion gaps | Guijun Deng | 2020-11-03 |
| 10704355 | Slotted anti-extrusion ring assembly | Guijun Deng, Andrew Cayson, John K. Wakfield, Carlos A. Prieto | 2020-07-07 |
| 10689942 | Multi-layer packer backup ring with closed extrusion gaps | Guijun Deng | 2020-06-23 |
| 10677014 | Multi-layer backup ring including interlock members | Guijun Deng, Christopher Cook, Frank J. Maenza | 2020-06-09 |
| 10526864 | Seal backup, seal system and wellbore system | Guijun Deng, Andrew Cayson | 2020-01-07 |