Issued Patents 2020
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10865617 | One-way energy retention device, method and system | Lei Zhao, Zhihui Zhang, Zhiyue Xu | 2020-12-15 |
| 10822912 | Multi-layer packer backup ring with closed extrusion gaps | Alexander Kendall | 2020-11-03 |
| 10704355 | Slotted anti-extrusion ring assembly | Andrew Cayson, John K. Wakfield, Carlos A. Prieto, Alexander Kendall | 2020-07-07 |
| 10689942 | Multi-layer packer backup ring with closed extrusion gaps | Alexander Kendall | 2020-06-23 |
| 10677014 | Multi-layer backup ring including interlock members | Alexander Kendall, Christopher Cook, Frank J. Maenza | 2020-06-09 |
| 10526864 | Seal backup, seal system and wellbore system | Alexander Kendall, Andrew Cayson | 2020-01-07 |